• Ace is a true to life emulation of a legendary 1950s, American, all tube, 5W, tweed amp
• Volume goes to 12 just like on the original amp
• Adjustable feedback amount
• Model of the circuit with grid stoppers
• Impulse response cab emulation
• Up to 8x oversampling
• Can also be used in live environments and for re-amping

• 3 neural amp models (NAM):
• Noctis: Modern high-gain amp for heavy metal (2 channels: scooped-tight and thick/aggressive).
• Ember (also referred to as Vesper in the text): Modern rock workhorse with dynamic clean-to-breakup response (2 channels).
• Lumina: Clean amplifier with plenty of headroom for jazz, neo-soul, or as a base for external pedals. 
• Real-time harmonizer (Multivoicer):
• 4 independent voices with real-time pitch shifting.
• Range of ±15 semitones.
• Scale awareness function for musical harmonies.
• Individual panning, volume, and detuning per voice. 
• Effects chain (Studio Rack):
• Pre-FX: Boost, compressor, overdrive, noise gate.
• Signal chain: 9-band graphic EQ.
• Post-FX: Chorus, delay, reverb.
• Bloom Effects: Contour Adaptive EQ, Polyphonic Octave (Sub-Octave), and Tonal Aliasing Bitcrusher. 
• Cabinet Simulation (Dual Cab):
• Dual-cab processing for layering two cabinets.
• 6 classic microphones (dynamic, ribbon, condenser) with position control.
• Individual control for mic, position, level, and pan per cabinet.
• Custom IR loader for loading your own WAV impulse responses (IRs).

Custom NAMs (*.nam files) cannot be loaded.

Review on Anmer Hunter with video and on bedroomproducersblog.com.

AIDA-X technology is available as an audio plugin and for hardware such as STRATUS and MOD DWARF. AIDA-X is open source. Installers are provided for both macOS and Windows, plus regular binary tarballs for Linux.

AIDA-X on GitHub. Also: aidadsp.github.io.

Online Player on Mod Audio. More information of AIDA-X on Mod Audio. 

See Tone3000 for Amp models and IRs.

Review on gearnews.de (german).

AIDA-X support:

• Two-Notes Genome CODEX
• Guitarix
• MOD Desktop of Mod Audio (see also the Plugins)

Altar is an open-source modular Amp Sim.

• Two Amplifiers
• glassy clean channel
• modern high-gain channel for a wide variety of tones
• Cab Designer
• Create your own professional-sounding IRs with an intuitive designer tool
• Share your cabs with friends or even sell them
• Mixing Tools
• Fast Mixing with the Low-frequency palm mute control
• pre-set Whistle filter and built-in Lofi effect
• NAM Support
• Pitch Shifting
• Pre & Post Process
• Modularer DSP
• Up to 8x Oversampling
• built-in Tuner
• Output Limiter 
• FX Suite
• Multiple Overdrive modes, Circuit-Bending, Reverb, Forward, Reverse and Glitch Delays, Chorus and a Ringmod

See also:

• Review on: bedroomproducersblog.com

This plugin dates back to a bygone era (last known update in 2009).

Guitar Amp Heads.

Download page.

AmpBox

• supports the products: BST-7, SUN-100, Tweed Blues, Tweed Bass, 1987X SG, 6160III, Rectofire, Euphoria, ReAxis, U530
• effects: Flanger MF-2, Noise Gate, Graphic EQ, Wah 535Q, Overdrive: TS 808, Chorus, Delay, Reverb and more
• Tuner

Father information at: 

• Mercuriall Audio Software releases Tube Amp Ultra 530 plugin
• see also: Tube Amp Ultra 530

• 1 Amp: 5034 Fluff - Modern metal chugs. No overdrive needed.
• made in collaboration with Ryan "Fluff" Bruce
• 3D cabinet simulator with 3 Cabinets: Mega Oversize, Freeman V30 and Freeman M25 with 4 microphone options
• own IRs can be loaded
• pedalboard with studio quality effects pedals: Noise Gate, Compressor, Drive Pedal, Chorus, Analog Delay and Reverb
• tuner
• MIDI capabilities

Amplifikation Lite

• 3 channels: Clean, Rhythm, Lead
• 9 Parameters: Input, Channel selector, Gain, Bass, Middle, Treble, Presence, Volume and Cabinet On/Off
• Built-in Cabinet Impulse Response Loader
• Supports sample rates of up to 96 kHz

Pillar

Pillar is a power amplifier simulator that utilizes vacuum tube emulation engine to enhance and complement the Efektor Gainia series preamps. Its primary function is to amplify the volume of the guitar sound and add a desirable level of saturation before it is projected through the speaker cabinet.

Information still available at: vstwarehouse.com + looperman.com

• 9 guitar preamps
• 7 power amps
• 12 speakers
• 8 microphones
• 30 effects

In the past, bassists had the Bass Amp Sim GK Amp 2 LE. Information still available at: looperman.com. Audified now offers the paid Bass Amp Sims GK Amplification 3 LE and GK Amplification 3 PRO.

IK Multimedia offers a wide range of hardware and software for musicians.

Amplitube 5 CS

The free version of AmpliTube 5 with:

• 10 Stompbox Models – 7 Band Graphic, Chorus, Compressor, Delay, Diode Overdrive, Flanger, Noise Gate, Opto Tremolo, Volume, Wah
• 6 Amplifiers – Brit 8000, American Tube Clean, American Tube Clean 2, British Tube Lead 1, SLD 100, Solid State Bass Preamp
• 7 Cabinets – 1x12 Open Vintage, 1x15 Bass Vintage, 2x12 Closed Vintage, 4x10 Open Vintage, 4x12 Brit 8000, 4x12 Closed Vintage, 4x12 Metal T
• 4 Speakers – American 12K, Brit 80, , Brit Green, Brit V2
• 3 Microphones – Dynamic 57, Condenser 414, Condenser 87
• 6 Rack Effects Units – Digital Chorus, Digital Delay, Digital Reverb, Graphic EQ, Parametric EQ, Tube Compressor
• 6 Rooms – Amp Closet, Garage, Hall, Large Studio, Mid Studio, Small Studio

TONEX CS

The free version of TONEX with:

• Includes 20 must-have Premium Tone Models and your choice of 20 user-created Tone Models from ToneNET
• Hyper-realistic tone-modeled rigs: amps, cabs and pedals
• Studio-grade EQ, compressor, modulation, delay, reverb, and noise gate
• Works as a standalone, plug-in or inside AmpliTube 5
• Browse, search and demo thousands of Tone Models covering a massive range of sought-after gear on ToneNET
• Use Tone Models to practice, jam or record inside your favorite DAW or use them on your mobile device with the free TONEX app
• Exclusive VIR™ multi-IR cabinets and custom IR Loader

• 3 amp models inspired by legendary amplifiers: "classic clean", "classic drive" and "modern drive"
• Simulations based on the Destructor dynamic distortion and amp modeling engine
• Load you own cabinet or reverb impulse responses to add color to the amp simulation
• No latency
• Full MIDI control and automation support, MIDI Learn
• Full featured integrated presets manager
• Any sample rate supported

Voxengo offers a wide range of different software for musicians.

Boogex

• Real-time guitar processing
• Speaker cabinet simulation
• Stereo convolution processing
• Guitar reverb effect

Tube Amp

• Tube overdrive
• Audio track saturator

• British High-Gain Amp emulation based on Marshall® stack
• Power Amp Drive Control
• Built In 4x12 Cabinet Emulation
• Realistic Tone Controls: Bass, Mids, Treble, and Presence
• 4X Up-Sampling Engine with 64-bit Floating-Point Internal Precision

Brainworx Guitar Sim plugins are also available by Plugin Alliance: bx_rockrack V3 Player + bx_megasingle.

Guitar amplifiers from renowned manufacturers.

bx_rockrack V3 Player

• 26 presets featuring eight powerful guitar amp models in one plugin:
• Clean 800: Clean channel from the Marshall JCM 800™ 2210
• Crunch 800: Lead channel from the Marshall JCM 800™ 2210
• Clean ENGL™ 530: Clean channel from the ENGL 530 Tube Preamp
• Lead ENGL™ 530: Lead channel from the ENGL 530 Tube Preamp
• Jazz Clean: Based on the ENGL 530 preamp clean channel
• Jazz Crunch: Based on the ENGL 530 preamp lead channel
• Modern Rock: Mesa Boogie Rect-O-Verb™ 50W
• Metal BX 666: Brainworx amp design by Igor Nembrini and Dirk Ulrich
• Easy to use preset toolbar is fully automatable, allowing on-the-fly tone changes while tracking or mixing DI guitar tracks
• Master Output control allows you to adjust volume to taste
• Use sounds from growling metal mayhem to soaring ballad leads to crisp and clean Jazz riffs all in one amp plugin
• Select predesigned tones from a wide array of professionally recorded cabinet responses from famous studios around the world

bx_megasingle

• Faithful reproduction of a Mesa Boogie Single Rectifier guitar amp
• 60+ impulse responses with multiple speaker cabinets recorded in a state of the art room with stellar gear
• Rhythm and lead channels both with separate gain and master volume controls
• Separate 3-channel EQs for each channel
• Channel one (Rhythm) features Clean/Pushed gain modes, and Channel 2 (Lead) features Vintage (Raw/Modern) gain modes for a wide array of powerful tones
• Shimmer or growl on the Rhythm channel
• Shred or scream on the Lead channel
• Delivers warm vintage Boogie tones and modern Rectifier metal mayhem
• Dual full function channels let you dial in any two tones you want
• Record DI guitars, then edit and process them in the DAW completely using the internal amp simulation, the recording chains and the FX Rack
• World-Class guitar sound right on your desktop via faithful recreation of a boutique tube amp

More free plugins from Plugin Alliance.

Brainworx also offers bass amps.

The page reads: "Build-Your-Own-Distortion (BYOD) is an audio plugin that allows the user to create custom guitar effects, with a focus on guitar distortion. The plugin contains emulations of guitar distortion and tone-shaping circuits from various, along with a handful of other useful effects."

With the GuitarML Module, BYOD can be expanded with free effects and amplifiers (JSON files) from the ToneLibrary on GuitarML.

Additional effects form Chowdhury DSP (or Chow DSP) are available from Aviate Audio.

Various guitar amp simulators with cabs.

See also:

• Guitar Amp Simulators and Related Pedal Sims at execonsultingtx.com
• Download at execonsultingtx.com
• YouTube Video: Guitar Amp Sim Tutorial Jun 2019
• YouTube Video: 4 VOX AC30 Amp Sim Comparison - FREE & Paid VSTs - Nembrini Dc30, Kuassa Lancaster, Analog Obsession

This plugin dates back to a bygone era (last known update in 2008). 

Developed by Matthias Becker. Download by R E Q U I E T U S.

Two plugins were combined into one GUI:

• Cortex amp: 4 different preamps, gain, tube & transistor, eq, boost and more
• OldCab: cabinet simulator, has Marshall, Hughes & Kettner, Fender and others, 16 in total

YouTube Video: Cortex Stack by Cortex

Ten vintage-style amplifier emulations and a treble booster in a single VST3 plugin.

Revirew on BedroomProducersBlog.

Revirew on Amner Hunter with Video.

Guitar Amp Sim from a bygone era.

CrunchDude is a very simple, yet effective guitar amplifier emulation. Only Win 32 VST.

YouTube Video by 83ennui: Modern Guitar Tones Get MOGGED by 2005 Amp Sim (Heeb CrunchDude)

• The Crunck V2 guitar amplifier's sound palette ranges from metal to fusion and rock to blues
• Choose the integrated cabinet, a 4x12 with Vintage 30 speakers, or bypass the cabinet section

See all free Plugins.

• Black Rooster Audio‘s guitar amp head emulation meticulously modeled after a very versatile, yet uniquely sounding low wattage amplifier
• simple 2x12 cabinet simulation (can be bypassed)
• Authentic circuit emulation

• Diode amplifier with a cabinet that can be disabled
• load your own cabinet IR, which the plugin will save. 
• High-tone control
• The “Bright” button toggles the 4 kHz peak filter on and off
• Low CPU usage

Additional Links: 

• freevstplugins.net (older version of Diode)
• looperman.com (overview of plugins by Viator DSP)

See the YouTube Video of Amner Hunter.

This plugin dates back to a bygone era.

Amp Heads.

Further information at:  grebz.com

A VST plugin created by Alejandro Langman and "the essence of vintage tube amp tone" (according to the website).

Unfortunately, the website does not provide much information.

See also:

• KVRaudio

Dusty Tube is a guitar and bass amp simulator plugin built on NAM (Neural Amp Modeler), an open-source project that uses deep learning to create highly accurate models of amplifiers and pedals.

Review on bedroomproducersblog.com.

• Ignite Amps 3rd generation triode modeling engine
• Dynamic EL34 / 6L6GC / KT88 pentodes/tetrodes analog modeling (push-pull stage)
• Two channels: clean and lead, each with fully separated controls
• Selectable power tubes with individual bias controls
• Selectable oversampling rate (up to 8x)
• Global input / output level controls
• Double precision (64-bit) floating point mathematical model
• Mono / Stereo processing support
• Fully automatable controls
• Ignite Amps proprietary preset management system with bank file import/export functions

See also the other free products: Libra, Emissary, NadIR, ProF.E.T., NRR-1, The Anvil, TPA-1, SHB-1, PTEq-X, TSB-1 Tyrant Screamer, TS-999 SubScreamer

Further download (older Version): grebz.com

GuitarML offers additional free software.

Epoch Amp

• 4 amp models: from clean to edge of breakup, crunchy to high gain
• mix control for mixing in the input signal with the dirty signal
• Epoch Amp is intended to be used as the foundation of your signal chain to add any number of other effects to
• Impulse Responses
• 3D amp model (by John Stutts)

Chameleon

• Chameleon is a guitar plugin using neural networks to create three distinct sounds from a vintage style amp head
• Chameleon's core sound comes from a neural net inference engine which allows the plugin to disguise itself as a high end tube amplifier
• While SmartAmp and SmartAmpPro are more experimental in nature, Chameleon uses the state-of-the-art RTNeural engine which brings CPU usage down to compete with other commercial plugins

Smartamp

• The SmartAmp is a guitar plugin that uses machine learning to mimic all the nuances of a tube amplifier
• It features a clean and lead channel with EQ and gain controls

The official website (revoltdsp.com) is down.

• 1 amp
• 2 cabs
• 4 essential pedals

Information still available:

• Review on bedroomproducersblog.com
• KVRaudio with video
• Review on thebeatcommunity.com

The paid EVOampSuite was announced for August 2024, but it has not yet been released.

Fender Studio is a DAW designed for anyone who wants to capture ideas quickly and easily. Jam, record, mix - on any platform.

This DAW includes Fender amps and effects:

Amps

• ’65 Twin Reverb
• Reverb 800 v.3
• ’59 Bassman*
• Bassbreaker 15 Medium Gain*
• Super-Sonic*
• Redhead*
• Tube Preamp*

Pedals

• Overdrive
• Sine Chorus
• Mono Delay
• Small Hall Reverb
• Modern Bass OD
• VariFuzz*
• Vintage Tremolo*
• Stereo Tape Delay *
• Small Room Reverb*
• Triangle Flanger *
• Simple Comp *

*To unlock, sign up for free in the app. If you create a free account, you will unlock six additional amps and nine effects.

Note: You have to scroll down the page to "Fender Studio" with the "Free Download" button.

Fender Studio vs. Fender Studio Pro

• Fender Studio (free app): The included amps and effects are permanently integrated into the app and cannot be exported as separate plugins.  
• Fender Studio Pro 8 (professional DAW): The Mustang Native and Rumble Native plugins can be installed separately and are compatible with common plugin standards (VST3, AU, AAX).  This means that these Fender amps and effects can also be used in other DAWs.

See also:

• Google Play
• YouTube Video: Fender Studio App: HOW Is This FREE??? (First Look)
• Review on: musicradar.com
• Review on: guitarworld.com
• Review on: gitarrebass.de (german)

Website ist down.

Information still available:

• KVRaudio
• Plugins4Free
• YouTube Video: Flextron DC14 - Free VST
• YouTube Video: Home studio: VST effect Axp flextron DC14: Guitar free Vst amp simulator (on Linux)
• Plugins on looperman.com
• Review of Sansamp Sim Plugin on masters-of-music.com

Original website (no loger exist):  http://frettedsynth.com

Information still avalible:

• rekkerd.org (download - see table)
• plugins4free.com 
• AudioFanzine 
• KVRaudio + here

YouTube Video: FREEAMP 3.6 by FRETTED SYNTH AUDIO

Features:

• Includes Guitsyn, a built-in guitar synth (screenshot).
• 7 different amp types.
• 7 different EQs, all have there own controls for comparison.
• 6 speakers, plus bypass, adjustable by the mic placement.
• Separate MIDI volume control, can be placed pre or post amp.
• Host Sync and Tap Tempo for Tremolo and Delay.
• Noise gate.
• Tremolo, Triangle and square modulators.
• 2 compressors, pre and post amp.
• Wah can operate by MIDI CC, plus has auto features.
• Drive pedal, with a choice of seven overdrive types.
• Chorus with added filter.
• Flanger.
• Phase Shifter.
• Delay and Reverb.
• 128 factory presets.

G-AMP and G-AMP-R are simple and useful guitar amplifiers.

The controls are easily understood.

G-AMP-R includes a reverb control.

Samsara Cycle Audio on plugins4free.com and looperman.com.

GigFast Lite is a guitar amp simulation and effects plugin based on Neural Amp Modeler (NAM) technology. It functions as a NAM loader, supports loading parametric NAM models as well as snapshot NAM files (three per preset with channel switching), and includes built-in effects such as a noise gate, overdrive, IR loader, and reverb. 

The software is available as an AUv3 plugin and standalone application and runs on iOS (iPhone, iPad) and macOS.

There is a free version and a commercial version. The free version includes:

• Amp models: Access to a very limited selection of pre-installed parametric amp models (often just a few for demonstration purposes). 
• NAM Import: Loading your own .nam profiles is not possible. 
• Effects: Only a minimal selection of basic effects is available; many modern effects (such as chorus, delay, wah) are disabled. 
• IR Loader: Importing your own impulse responses (IRs) for speaker cabinets is disabled; only a few internal options may be available. 
• MIDI & Tuner: Advanced MIDI control and the precise strobe tuner are often not fully functional or are disabled. 
• Usage Duration: The app can be used for free indefinitely, but only with these limited features (there is no time limit for the basic version, but there are functional restrictions).

Without purchasing the upgrade, the app is essentially just a player for the included demo amps. To use it as a full-fledged tool (loading your own NAMs, full effects chain, MIDI control), the upgrade is absolutely essential.

See this YouTube Video.

GrindMachine

Information and download on Plugins4Free + dontcrack + bedroomproducersblog 

See also the Bass Amp Bass Grinder Free and the other free plugins on Plugins4Free of Audio Assault.

Amp Locker

• Prestige 1950 - A british hotrodded amp
• 7 FX Pedals - 7 Rack FX
• 11 3D Cabs - Fully Adjustable with 11 Mics
• Freely Adjustable Pedals & Rack FX
• Cabs with freely movable mics
• Double Tracking Emulation
• Plug-in and Stand Alone App
• MIDI Support
• IR Loader & 3D Cab "Impact" algorithm for ultra realism

Invicto

This Amp is part of the Reamp 2 Collection inside Amp Locker. Inspired by the Peavey Invective 120.

Review on  Amner Hunter with video.

See also:

• Amp Locker 98 and the review on BedroomProducersBlog and on Anmer Hunter with video.
• Mix Locker

Audio Assault has a series of paid Guitar Amp Sims and Bass Amp Sims that can be loaded with Amp Locker. 

• 2 clean, 3 overdrive, and 4 high-gain amps for guitar
• 9 guitar cabs, 1 bass cab, and 12 miking options (with 3 mic types)
• Insert up to 4 pedal effects, and choose pre- or post-amp position
• Chorus, overdrive, distortion, delay, 2 reverbs, 6 more effects
• Drag-and-drop effect positions in the effects chain
• Tap tempo, tempo sync, and many more extras
• The ToolRack paradigm for real-time live performance
• Compatible with multipoint touch-sensitive screens
• Tuner for guitar and bass, with alternate and user-defined tunings
• 68 factory presets

Old website (no longer exist): http://www.plektronfx.com/index.php

Information still avalible: kvraudio.com + pluginboutique.com + looperman.com

• 2 versatile amplifiers for Guitar (british) and Bass (BassVox)
• Cabinet simulator
• Fuzz: classic distortion effect
• Compressor
• Vintage Reverb
• Tuner
• Input & Master Module

This guitar amp sim run in a web browser.

Father information: homemusiccreator.com

Guitar Rig 7 Player is a free, cut-down version of Guitar Rig 7 Pro and includes:

• Factory Selection packs an iconic workhorse amp and a British-style tube amp
• matched cabinets
• 26 effects and tools
• 60 ready-to-use presets

The website https://www.simulanalog.org/ is no longer available, but you can still visit https://www.simulanalog.org/guitarsuite.html to download the amp sims.

This plugin dates back to a bygone era (last known update in 2008).

Information: requietus.blogspot

Download: grebz.com

• Boss DS-1 (Distortion stompbox)
• Boss SD-1 (Super Overdrive stompbox)
• Tube Screamer (Overdrive stompbox)
• Oberheim PS-1 (Phaser stompbox)
• Univox Univibe (Modulations stompbox)
• Fender Twin 1969 (Guitar amplifier)
• Marshall JCM900 Dual Reverb (Guitar amplifier)

See also:

• YouTube Video: Fender Twin 1969

• 1 Guitar Amp
• 25 built-in modules including stuff from a simple noise gate to brain-slashing modulation f/x like flanger, phaser or auto-wah
• Noise Gate, Compressor, Mono Level Output, and Clipping
• Tuner
• Rack: Tube Selection, Pre-Gain, Master Gain, Clean/Dist Blend, Drive, Optional Bass and Presence Boost, Optional Reverb, and a Large Master Volume
• Limiter
• Amp Impulse for Manufacturer Characteristics, Cabinets, EQ
• Stereo FX, Reverbs and Delays, Cabinet IRs
• Additional Third-Party Plugins
• Support for AIDA-X models (RTNeural format) has been included since version 0.45.0.
• see the plugins of MOD Audio

macOS: Limited to older builds or currently available via Guitarix.vst (as a VST3 plugin). 

Windows: No official standalone version, but usable as a VST3 plugin via Guitarix.vst.

Blog article at GearNews (german).

• Pre-FX: Pitch Shifter, WAH, Overdrive with Drive, Tone, Level, Mix & Tight controls
• 1 Amp + Cab: Tube-style gain staging with built-in IR loader — ships with OS V30 4×12 (SM57) cab impulse
• Post EQ: 10-band graphic EQ (31 Hz – 16 kHz) with low-cut & high-cut cab filters
• Time FX: Stereo Delay (tempo-sync) and Reverb with pre-delay
• Gate: Noise gate for tight, silent tracking
• Tape Saturation: Analog warmth & harmonic density
• Limiter: Soft brick-wall limiter with gain reduction metering
• Makeup Gain: ±24 dB post-limiter trim
• Full DAW automation support, resizable UI, built-in presets & tuner

My Inferno offers also the free Bass Amp Sims SUBJUGATOR.

This plugin dates back to a bygone era (last known update in 2008). 

Information and download still available:

• kvraudio.com 
• digital-notes.de (german)
• R E Q U I E T U S
• grebz.com

• 3x Analog Modeled Amplifiers
• Solid State Amplifier: Standard
• Tube Amplifiers: Clean & Metal
• 2 Channels (Clean/Boost)
• 3 bands tone stack
• Contour
• Integrated Cabinet Simulator
• Resizable interface

This plugin dates back to a bygone era (last known update in 2010).

LePou was very popular in his day.

Various guitar amplifier heads.

Official website (lepouplugins.blogspot.de) no longer exists.

Information and download still available:

• R E Q U I E T U S
• plugins4free.com
• grebz.com

Liver6

Liver6 is a cutting-edge, neural network-powered VST plugin meticulously simulating the iconic, somewhat plastic-y essence of the early Line6 Kidney 2.0. 

Goblyn

Based on studio standard metal head 5153 boosted with one of the best overdrives in the market and sculpted with true analog toys.

• 3 band tone stack
• Build in IR slider
• Impulse loader
• Nastiness

Nosferatu

High-Gain Preamp.

• Stomp
• Main Drive — thick, aggressive distortion with classic high-gain character
• Boost Mode
• Power Amp
• Cab
• Paired with a cab simulation featuring two distinct voicings, Nosferatu covers everything from tight modern metal to doomy, decaying sludge
• Tuner
• Transpose
• Studio Environment
• Presets
• Build-in Gate
• MIDI

What is LiveSPICE?

LiveSPICE is a real-time SPICE simulator for audio signals that allows you to design analog circuits and simulate them immediately using live audio signals (e.g., from a guitar) without having to build physical components. It is also an open-source hobby project.

Using the software requires a basic understanding of electronics (reading schematics, understanding component functions), which makes LiveSPICE less appealing to complete beginners with no technical interest, but ideal for the typical electronics hobbyist. In the LiveSPICE main application, you load or draw the circuit. To use the circuit in a DAW, you load the built-in VST plugin.  This plugin is tightly integrated with the main application; you cannot share it as a separate, standalone file that works without the LiveSPICE installation. 

• Real-time simulation: Processes signals from audio inputs with minimal latency and outputs the result directly to the speakers.
• Visual editor: Includes a user-friendly schematic editor for creating and editing circuits. 
• VST Plugin: Includes a VST plugin to use the designed circuits as effects in a DAW (Digital Audio Workstation).
• Component Library: Features a growing library of models, including operational amplifiers, transistors, vacuum tubes, and transformers. External SPICE libraries can also be loaded.
• Platform & Requirements: It is a Windows application that requires the Microsoft .NET 6.0 Runtime.  An ASIO-compatible audio interface is recommended.
• Open Source: The project is available as open source on GitHub and uses its own computer algebra system to optimize simulations.

See this YouTube Video by Matt van den Ham: Free High Gain Pack with LIVE SPICE (similar to Neural Amp Modeler) See the google drive download link in the description.

This plugin is free when you purchase another commercial product.

• tube power amp
• cabinet/speaker
• microphone
• high-end studio preamp
• Fully Tweakable

See also:

• YouTube Video: This Free Marshall JCM800 Plug-In INSANELY Tweakable!
• YouTube Video: JCM800 with Tweakable Circuits (Free AmpSim)
• Review on: gearspace.com

Mayerism is an open-source plugin inspired by John Mayer's signature tones and built on top of the Neural Amp Modeler Plugin.

• Amp Section:
• Clean to edge-of-breakup response.
• Touch sensitivity and pick dynamics.
• Smooth midrange and glassy high end.
• Integrated Pedal Suite:
• Tube Screamer–style Overdrive Classic mid-forward drive with Drive, Tone, and Level controls.
• Compressor Transparent compression for sustain and control, ideal for clean and blues tones.
• Clean Boost Transparent gain stage for pushing the amp or lifting solos.
• Chorus Subtle modulation for width and movement, suited for clean and lightly driven tones.
• Delay Musical delay for rhythmic repeats and ambient textures.
• Reverb Smooth reverb for space and depth, from subtle room ambience to lush tails.
• Tone Shaping & Utilities:
• Tone Stack EQ Bass, Middle, and Treble controls tuned for Mayer-style voicing.
• Noise Gate Controls noise and feedback without affecting playing dynamics.
• Doubler Adds stereo width and depth.
• Input / Output Gain Independent level control for gain staging and plugin integration.
• Presets & Interface:
• Preset Management Save and load presets that store your settings.
• Real-time Metering Input and output level visualization.

See also:

• Mayerism at KVRaudio
• YouTube Video: John Mayer Tone for $0? Could This New FREE Amp Sim Be An Alternative To Neural Dsp Mayer?

Mini Fenrir is a single snapshot of one tone from the Fenrir virtual amplifier, condensed into 1 free plugin.

Gone are the days of fiddling with a bunch of knobs. This amplifier comes with NONE.

• Model loaders for NAM (Neural Amp Modeler), AIDA-X, cabinet and reverb IRs
• File-based sources: SFZ, SF2, MIDI, Hydrogen drumkits, audio loops
• Full suite of effects and synths, from delays and distortions to soft synths and ambient tools
• Utility plugins like Mixers, Routers, Switchboxes, Noise Meters, Recorders, Volume, and Gain controls
• Creative tools like Loopers and arpeggiators
• Advanced MIDI tools for routing, filtering, processing and transforming MIDI streams
• CV/Modular synth plugins for signal shaping, modulation, and custom patching

• A modern amp with a classic British sound
• Two channels each one with two preamp gains, a mid-boost and a boost
• A pedalboard with 5 super efficient stomps, no need to disconnect cables to test the positions of the stomps
• 44100Hz, 48000Hz, 88200Hz, 96000Hz, 176400Hz and 192000Hz compatible. Plugins tested under Logic and Reaper
• The distortion responds to the volume of the guitar
• Based on the capture of a favorite tube amp
• Two models of reverb springs
• 12 cabinet models (1x12, 2x10, 2x12, 4x12) which reproduce the sound characteristics of the most famous cabinets

In the past, there was also the Tone Deluxe (see also the review on masters-of-music.com).

All Plugins of LostIn70s by KVRaudio. See the ToneDeluxe 2, Bull Deluxe Amplifier and Live Pedalboard.
And the Bass Amp Sim Bass Deluxe and 

Lostin70s offers also a free Bass Amp Sim: Bass Deluxe.

Free plugin that expands the Neural Amp Modeler.

• NAM Loader (includes Capures for bass and guitar)
• Pedal Profile Loader (NAM-Pedal-Captures or Preamp-Profile; includes Capures)
• Dual IR Loader (includes IRs for bass and guitar)
• Stereo support
• Tuner and Preset-Management
• Noise gate
• Tone stack module
• Dynamic EQ
• Instigator Module (A simulated tone stack from a Mesa Boogie MK2C+ amplifier)

YouTube Videos: Pipp Priss + Amps, Pedals & Pickups

YouTube Channel Recommendation: The Amp Sim Universe

NAM Universal by KVRaudio (with videos).

To play guitar, load a *.nam file and a *.wav Impulse Response (IR) file.

• What is NAM? The answer is here.
• Get NAMs: tone3000.com + damyfx.eu + choptones.com 
• Get IRs: tone3000.com + free IRs + paid IRs
• Expandable with NAM Universal from Wave Mind Audio
• Open Source software

YouTube Video: Tudor N.

The NAM Player pedal from Dimehead can load NAM files.

• amp selection
• Soldano® SLO-100®
• Laney® TF300®
• cabinet section
• 1×12 HH Invader Laney TF300 Combo
• 4×12 Vintage 30 Marshall 1960 LEAD A
• 4×12 Vintage 30 Modern American Cab
• pedalboard: COMPRESSOR, BURN, CHORUS, TIME MACHINE, THE ROOM

A collection of plugins that includes: 

• AmpBrowser
• StompBrowser
• Easy Amp (see the YouTube Video of resington)
• DelayChorus
• CaliforniaDrive

Nice Stomps! offers a free and open-source alternative to products such as TONEX from IK Multimedia.

AmpBrowser and StompBrowser are powered by Neural Amp Modeler (NAM) and connected to the free Tone3000 community.

We recommend watching this video on RigBrowser.

See the review on: BedRoomProducersBlog.

This plugin dates back to a bygone era (last known update in 2009).

Guitar amp heads that were popular in their day.

See also: Nick Crow on google site

Nick Crow by R E Q U I E T U S.

This plugin dates back to a bygone era.

Old Website (down): http://ww3.mokafix.com.

• emulation of a famous analog amp
• cab sim stompbox effect
• 3 switches and 4 knobs to sculpt the sound

Information at:

• kvraudio.com
• grebz.com (download)
• bedroomproducersblog.com

Various guitar amp sims and effects.

Further information at:

• Video on: kvraudio.com
• NaLex Software at web.archive.org (Amplex - Multiamp) + other software from NaLex + IRbis - Cabinet Simulator
• Video
• Download at archive.org
• Ninja on integraudio.com
• YouTube Video: TrueSim

NaLex offers also Bass Amp Sim.

YouTube Videos by resington:

• FREE Old Rectifier Amp Sim Puts Everyone To Shame
• NaLex Dual Rectifier - New Free Amp Sim Plugin Demo For Metal

This plugin dates back to a bygone era (last known update in 2013).

Only Win32bit.

• 19 models of pedals
• 2 amps
• 7 speakers models
• 3 rack units

See also:

• Pedals on plugins4free.com.

Pires is an High Gain Amp for Metal. It is an Amp Head an needs an Cabinet, e. g. an IR Loader.

The YouTube video by Nuno Pires that contains the Dropbox download link: This Dude Made Me an Amp Sim... And It RIPS

See also the YouTube Videos from resintgton: Pires FREE Amp Sim Plugin Is Metal AF

Planet of the Cubs is a collection of vintage amp effects based on the Planet of the Amps series. 

These effects capture the spirit of legendary hardware and offer rich reverb, dynamic modulation, and playful delays to give your sound authentic character and depth.

POD Farm 2.5 FREE is not a separate product. It is a demo mode that gets enabled when POD Farm 2.5 is installed without a license.

• 2 guitar amps
• 2 guitar cabs
• 2 bass amps
• 2 bass cabs
• 13 stompboxes and studio effects
• 2 mic preamps
• Dual Tone functionality and A/B/Y box

Different Amp Heads modeled after the original analog ones. 

See also other pages of VTarAmps:

• vtaramps.blogspot.com (click through the links in the bar on the left for the downloads. there is more free stuff.)
• blogger.com

See also: HASR Free Pack 2.0

Captures from VTarAmps by resington on Tone3000 for the Neural Amp Modeler (NAM). 
Here's the YouTube video: My FREE VTarAmps Tones For Neural Amp Modeler

YouTube Video by resington: Raven Volcanic - Aimless Jam(Where are my glasses?)

Old Blog Page.

Redcurrant is a guitar amp / cabinet emulator designed for Metal.

• Fury guitar amp
• Cabinet emulator (with custom IR loader)
• Screamer
• Reverb effect
• Delay effect
• Noisegate
• Tuner

See also:

• Redcurrant on looperman.com
• Redcurrant on plugins4free.om

This plugin dates back to a bygone era.

A range of guitar amp heads and effects - require an IR loader.

Further download: grebz.com

Resingtone

Resingtone is a VST Plugin from the YouTube Channel resington. It is an Amp Head an needs an Cabinet, e. g. an IR Loader. 

Windows only.

YouTube Video of AnatoliyPlaysGuitar: Hat sein eigenes Gitarren-VST-Plug-in Resingtone (+IR) erstellt

See the YouTube Videos of resington: 

• The Greatest FREE Metal Amp Sim Plugin Ever?!
• This FREE Amp Sim Plugin Kills In A Mix

Nemesis

Nemesis is a simple knob style sim. 

Windows only.

YouTube Video by resington: Nemesis FREE Amp Sim Is Metal As F**k

This plugin dates back to a bygone era.

Guitar Amp Head.

The also https://rekkerd.org/ronald-passion/.

Ritual Amp Loader

Based on the Neural Amp Modeler by Steve Atkinson.

You can load any .NAM and cab IR file from your own capture collection.

RITUAL AMP LOADER expands the tonal shaping capabilities and toolset at your disposal.

• 9 PEDAL CAPTURES including the MERCILESS DRIVE by VIC AUDIO
• 11 AMP HEAD CAPTURES
• 2 BASS HEAD CAPTURES
• 15 CAB IMPULSE RESPONSES from VIC AUDIO 
• PEDAL LOADER with TONE control as well as a WET DRY mix
• AMP LOADER with BASS, MIDDLE, TREBLE, PRESENCE as well as a CUT to tame the top end.
• GATE
• MONO/STEREO CAB IR LOADER
• Tuner
• NORMALIZATION AND CALIBRATION of PROFILES
• CALIBRATED PROFILE SUPPORT

LittleSVART

Free basic snapshot version of SVARTRUNA.

• Stereo Processing
• Advanced Tone Shaping Options
• 3 Cabs to Choose From
• 20 Factory Presets
• 4 Pedals and Blending Options
• Lifetime license with free updates

LittleSLAMP

Free basic snapshot version of SLAMP.

For getting started with brutal slamming death metal tone.

Rollamp

• authentic circuit guitar combo amplifier emulation
• 1×12 Type M cabinet
• Type 57 mic placed to cap edge
• Three valve models
• Class A power-amp
• Cabinet simulation that can be bypassed
• Calibrated input level to record guitar ITB

Father information: gearnews (german)

Direkt link: Plugins4Free

Amper

• mid/high gain guitar amp for metal

Direkt link: Plugins4Free

See also the free Cabinet Simulator KABIN (YouTube Video).

This plugin dates back to a bygone era (last known update in 2008).

Information and download still available:

• R E Q U I E T U S
• grebz.com

See also AX84.com.

This plugin dates back to a bygone era (last known update in 2010).

Various amplifier heads - often high gain for metal.

Only Win32.

Website (down): https://www.acmebargig.com/

Information and download still available:

• audiofanzine.com
• KVRaudio
• rekkerd.org
• Plugins4Free
• R E Q U I E T U S
• bestfreeplugins.com
• grebz.fr

This plugin dates back to a bygone era.

Guitar Amp Head. Emulation of a Soldano SLO-X88 amplifier.

Download: grebz.com

• Neural amp models (NAM)
• IR cabinet simulation (load your own IRs)
• flexible signal chains
• Dynamics and EQ
• Delay and reverb
• Modulation and pitch utilities
• Community Presets
• Tone3000 integration
• Built-in practice tools like tuner and metronome

The STR-X was built to be a simple but powerful, digitally-oriented guitar amp, one which isn’t based on any pre-existing analog models. 

Tonally, it is capable of high gain, modest crunch, and cleaner tones with some added heat.

• One-of-a-kind digital guitar amp
• Low & High gain modes
• 3 different preamp voicings
• One-knob distortion pedal
• 4x oversampling
• Render-only oversampling

• SuperCrunch does not model any real hardware but it is capable of very natural sound of classic tube amplifier. 
• Its range is from sparkling clean sound through gentle and not so gentle crunch tones to wild rock and metal distortion. 
• There are controls for input and output gain, drive gain and bright and there is a choice of two channels - crunch and lead. 
• With 8-band graphic equalizer. 
• It can be gain-compensated. 
• A gate with adjustable threshold.
• A cabinet simulation (which can be turned off) with two phase-matched impulse responses that can be smoothly blended together. 

See also:

• SuperCrunch on KVRaudio
• Review on bedroomproducersblog.com

Swanky AMP is powered by a state-of-the-art tube amplifier model. The model is based on detailed simulations of real tube amplifier circuits, and is built using a variety of modern digital signal processing techniques.

The website resonantdsp.com is down.

See also:

• Swanky Amp on KVRaudio
• Swanky Amp Pro (paid) on KVRaudio

Tamazight Metal Amp

• Amp Heads: 1 Standard 
• Cabinet Section: 3 Cabs (No IR Loading)
• Pre-Amp Pedals: Compressor & Drive
• Post-FX Pedals: Delay & Reverb
• Presets: 20+ Presets
• Tone Shaping: 9-Band EQ & Tight Noise Gate
• Pitch & Tuning: Transpose (±12) & Built-in Tuner

Review on bedroomproducersblog.com.

QingX Clean Amp

• Amp Heads:1 Amp Head (Blue)
• Cabinet Module: 3 Cabinet Modes (No Custom IRs)
• Pre-Amp Processing: Glue Compressor & Bloom Drive
• Post-FX Array: Synced Echo & Halo Reverb
• Factory Presets: 20+ Starting Presets
• Tone & Mix Controls: 9-Band EQ & Threshold Noise Gate
• Width & Pitching: Transpose (+/-12 st), Stereo Input, Spread
• Utility Tools: Mutable Visual Tuner & A/B Compare

The smal Version of THU.

• 4 Guitar Amp models
• 5 Cabinet models
• 6 pedal and rack effects
• Rig Player (with 10 factory rigs), allows to reproduce rig models created by capturing real setups
• 18 microphone models, with up to four mics on each cabinet
• Amp Tweak technology, allows to mod the amplifiers by changing the preamp and poweramp tube models, as well as simulating the action of a variac
• Scenes allow to instantly recall different models configurations in the preset
• 4th generation analog emulation technology, with proprietary nonlinear processing algorithm
• Advanced cabinet emulations with Fluid IR technology
• Includes a Fluid IR loader which allows to load standard IRs and transform them into Fluid IRs
• 3D, gap-less positioning of microphones and room simulation
• Easy to build or modify your own signal path
• Fully MIDI control
• Chromatic Tuner

• Amplifiers: List of an ever-growing collection of classic amplifiers.
• ToneSnaps: the technology delivers an extremely high level of accuracy when capturing gear.
• Cabs: Tonocracy includes a diverse set of factory cabinets from ML Sound Lab, Amalgam Audio, and others. You can load your own IRs.
• Speaker Compression: this modeling apply to our SchemAccurate and ToneSnap technologies as well as to NAM files imported into Tonocracy. 
• FX:  Drive, Reverb, Modulation, Delay, Dynamics, EQ, and Pitch. 
• NAM Support
• Presets
• Signal Routing
• Cloud Backups and Sync
• Cloud Library

Also see: atomicamps.com

Version 1.0 of V1V0 Pro v2.2 - Amp Simulator (no longer available) is available as an amp-only version.

Inspired by the iconic high gain 5150 and it's mods.

Ranges from creamy rhythm saturation to monster metal tones, Mark I and II modes for classic and modern singal shaping.

See the YouTube video.

VoLum is an open-source guitar amp collection for the stage, studio, and practice desk. It uses the Neural Amp Modeler core, but ships as its own focused app.

• 15 bundled amps: 
• vintage, modern
• NAM captures with 3 speaker modes and without speakers
• multiple gain-stage channels each
• Full rig workflow: 
• PRE compressor
• NAM pedal slots
• AMP controls
• POST Delay/Reverb live in one PRE | AMP | POST layout.
• Dual Amp: 
• blend a main amp with a support amp
• pan both lanes
• flip support polarity when a stack needs it
• POST effects: 
• Digital, Analog
• Reverse Delay plus Hall, Plate
• Oktaverb Reverb with Halo, Shimmer, and Bloom voices
• Tools: silent tuner and configurable metronome
• Standalone and VST3.

You CANNOT load your own NAM and IR files.

Download: go to the Release Page and scroll down a bit.

See the User Guide + YouTube Video + first release (10.04.2026) + release v.1.0 (17.05.2026).

This guitar amp sim run in a web browser.

Review: homemusiccreator.com

TSE X30

The X30 is emulating a high gain german preamp.

Only WIN32.

Also free: TSE 808 + TSE R47 + TSE BOD

Further information: TSE X30 by KVRaudio + TSE X50 by KVRaudio