TOOLS LIBRARY
Yes. Every tool in the library is free to use.
No. All tools run directly in a modern web browser such as Chrome, Edge, Firefox or Safari.
Yes. The synthesizers support MIDI keyboards through Web MIDI, which works in Chrome and Edge.
Yes. Many instruments, including the Drum Machine, TR-808, TB-303, MIDI Keyboard and guitars, export MIDI, WAV and MP3 files.
They were created by Georgi Georgieff, PhD, a music producer, composer and former Assistant Professor of music production at Sofia University.
All tools are free and run in your web browser — no download, no installation. Pick a category above to open it, or browse the full list below.
Interactive visual guides and tools for learning music theory and music history, from the first notes to advanced harmony.
Free interactive visual guide to music theory: notes, intervals, scales, chords and keys explained with clear diagrams, right in your browser.
Visual diagrams · Notes and intervals · Scales and keys · Chords
Open guide →Learn music theory from scratch: 122 step-by-step lessons and 27 interactive tools on notation, rhythm, dynamics, intervals, scales and chords.
122 lessons · 27 interactive tools · Notation and rhythm · Dynamics · Intervals, scales and chords
Open guide →The complete music theory reference in one interactive guide: from fundamentals and notation to scales, modes, harmony and chord progressions.
Fundamentals to advanced · Scales and modes · Harmony · Chord progressions
Open guide →Interactive visual guide to the elements of music: rhythm, tempo, melody, harmony, timbre, dynamics, texture and form, explained simply.
Rhythm and tempo · Melody and harmony · Timbre · Dynamics, texture and form
Open guide →45 interactive music theory tools in one free browser app: scales, intervals, chords, ear training, ADSR and a piano roll with note display.
45 tools in one app · Scales and intervals · Ear training · Piano roll with note names · ADSR envelope
Open tool →Interactive music history from ancient times to today: 14 eras and 5,000+ years, a genre family tree, analog vs. digital, and a Guess the Era quiz.
14 eras, 5,000+ years · Genre family tree · Analog vs. digital · Guess the Era quiz
Open guide →Learn how to analyze music: a visual guide to song form, harmony, melody, rhythm and arrangement, for students, songwriters and producers.
Song form and structure · Harmonic analysis · Melody and rhythm · Arrangement
Open guide →Visual guides that explain how music is produced, processed, mixed and mastered, plus DAW guides and plugin directories.
Visual guide to how synthesizers work: oscillators, filters, envelopes, LFOs and modulation, plus the main synthesis types explained.
Oscillators and waveforms · Filters · Envelopes and LFOs · Synthesis types
Open guide →Understand any DAW: a visual guide to tracks, the arrange view, mixer, piano roll, automation, plugins and routing, the parts every DAW shares.
Tracks and arrangement · Mixer · Piano roll and MIDI · Automation · Plugins and routing
Open guide →The music production workflow step by step: from first idea, composition and recording to arrangement, mixing, mastering and release.
Idea to release · Recording · Arrangement · Mixing and mastering
Open guide →Visual guide to music production for beginners: the studio, DAW, recording, MIDI, sound design, arrangement, mixing and mastering explained.
Studio and DAW basics · Recording and MIDI · Sound design · Mixing and mastering
Open guide →The building blocks of a modern track: rhythm, bass, harmony, melody, sound design, arrangement and space, explained visually.
Drums and rhythm · Bass and harmony · Melody and hooks · Arrangement and space
Open guide →Complete reference for music production and sound processing: signal flow, EQ, compression, reverb, delay, modulation and distortion.
Signal flow · EQ and dynamics · Reverb and delay · Modulation and distortion
Open guide →Learn to mix music: a visual guide to balance, panning, EQ, compression, reverb, delay, buses and automation for clear, professional mixes.
Balance and panning · EQ and compression · Reverb and delay · Buses and automation
Open guide →Visual guide to audio mastering: loudness and LUFS, EQ, compression, limiting, stereo width and preparing your tracks for streaming.
Loudness and LUFS · Mastering EQ and compression · Limiting · Streaming delivery
Open guide →How audio effects work, visualized: EQ, dynamics, reverb, delay, modulation and distortion explained with clear diagrams.
Equalization · Dynamics · Time-based effects · Modulation and distortion
Open guide →Visual encyclopedia of musical instruments using the Hornbostel–Sachs system: idiophones, membranophones, chordophones, aerophones, electrophones.
Hornbostel–Sachs classification · Idiophones and membranophones · Chordophones and aerophones · Electrophones
Open guide →Learn REAPER visually: interface, tracks, routing, recording, MIDI editing, FX, actions and rendering explained for beginners and switchers.
Interface tour · Tracks and routing · Recording and MIDI editing · FX, actions and rendering
Open guide →Beginner's visual guide to BandLab, the free online DAW: the Studio, recording, loops, virtual instruments, effects, mixing and sharing.
BandLab Studio tour · Recording and loops · Instruments and effects · Mixing and sharing
Open guide →Curated directory of the best free VST/AU plugins: synths, samplers, EQs, compressors, reverbs and more, organized by category.
Free instruments · Free effects · Organized by category
Open guide →Directory of professional paid audio plugins by category, the instruments and effects worth buying, to help you choose the right tools.
Pro instruments · Pro effects · Organized by category
Open guide →Playable synthesizers, drum machines, samplers, guitars and production tools that run entirely in your browser.
Six synthesizers in one free browser studio: subtractive, additive, wavetable, FM, granular and physical modeling, playable via Web MIDI.
6 synthesis engines · Subtractive, additive, wavetable · FM, granular, physical modeling · Web MIDI input
Open tool →Free online subtractive synthesizer: oscillators, resonant filter, envelopes and LFO. Play it in your browser or from a MIDI keyboard.
Oscillators · Resonant filter · Envelopes and LFO · Web MIDI input
Open tool →Build sounds from harmonics with a free browser additive synthesizer: mix partials to design tones, and play from a MIDI keyboard.
Harmonic partials · Timbre design · Web MIDI input
Open tool →Free online wavetable synthesizer: sweep through wavetables, shape the sound with filters and envelopes, and play from a MIDI keyboard.
Wavetable scanning · Filters and envelopes · Web MIDI input
Open tool →Free online FM synthesizer: create bells, electric pianos and metallic basses with frequency modulation, playable from a MIDI keyboard.
Frequency modulation · Operators and ratios · Web MIDI input
Open tool →Free browser granular synthesizer: turn sound into clouds of tiny grains to create textures, pads and soundscapes, with MIDI support.
Grain size and density · Textures and pads · Web MIDI input
Open tool →Physical modeling synthesizer in your browser: plucked, struck and resonant tones generated from mathematical models of real instruments.
Plucked-string modeling · Realistic acoustic tones · Web MIDI input
Open tool →Free online drum machine: 16-step sequencer, kit presets, swing and your own samples. Export your beats as MIDI, WAV or MP3.
16-step sequencer · Kit presets · Swing · Load your own samples · MIDI, WAV, MP3 export
Open tool →Classic 808 drum machine in your browser: synthesized kick, snare, hi-hats and toms, 16-step sequencer and swing. Export MIDI, WAV or MP3.
Synthesized 808 voices · 16-step sequencer · Swing · MIDI, WAV, MP3 export
Open tool →Free online TB-303 acid bass synth: three sequencer views (classic, pad grid, piano roll), built-in drum machine, MIDI/WAV/MP3 export.
Acid bass synth · Classic, pad grid and piano roll views · Built-in drum machine · MIDI, WAV, MP3 export
Open tool →Free online sampler: load a sound, edit it on the waveform, shape it with ADSR and play it one-shot or looped, synced to tempo.
Waveform editor · ADSR envelope · One-shot and loop modes · Tempo sync
Open tool →MPC-style 16-pad sampler in your browser: load samples onto pads, shape them with ADSR, add master effects and play in tempo sync.
16 pads · ADSR per pad · One-shot and loop · Master FX · Tempo sync
Open tool →Free online audio editor: open an audio file, see its waveform and edit it right in your browser, with no software to install.
Waveform view · Audio editing · Runs in the browser
Open tool →16-track browser looper: record quantized loops, layer them live, and export WAV. Keyboard shortcuts for hands-free performance.
16 loop tracks · Quantized recording · Keyboard shortcuts · WAV export
Open tool →Ableton-style clip launcher in your browser: session view, step sequencer and a MIDI synth track, with external MIDI controller support.
Session view · Step sequencer · MIDI synth track · External MIDI
Open tool →Generate full songs in your browser: choose from 38 genre presets and 12 moods, built on 31 harmony rules and played with General MIDI sounds.
38 genre presets · 12 moods · 31 harmony rules · Full song structure · GM SoundFont playback
Open tool →88-key online MIDI piano with General MIDI and SoundFont sounds, arpeggiator, piano roll and velocity lane. Export MIDI, WAV or MP3.
88 keys · GM and SoundFont engines · Arpeggiator · Piano roll and velocity lane · MIDI, WAV, MP3 export
Open tool →Virtual acoustic guitar in your browser: strum chords with pattern players, record your playing and export MIDI, WAV or MP3.
Strum pattern players · SoundFont and physical modeling · EQ and reverb · MIDI, WAV, MP3 export
Open tool →Virtual electric guitar online: strum patterns, EQ and reverb, record your playing and export MIDI, WAV or MP3. Works on mobile.
Strum pattern players · EQ and reverb · Record and export · Mobile-friendly
Open tool →Virtual bass guitar in your browser: play bass lines and patterns, shape the tone with EQ and reverb, record and export MIDI, WAV or MP3.
Bass pattern players · EQ and reverb · Record and export · MIDI, WAV, MP3 export
Open tool →Online piano roll MIDI editor: draw, edit and play back notes on a grid to build melodies, chords and beats in your browser.
Draw and edit notes · Playback · Melodies, chords and beats
Open tool →Write sheet music in your browser: compose and edit notes on the staff and play your score back, with no notation software to install.
Staff notation · Score editing · Playback
Open tool →Play a virtual drum kit online: kick, snare, toms, hi-hats and cymbals right in your browser, a fun way to practise grooves.
Full drum kit · Play in real time · Runs in the browser
Open tool →Audio analysis tools in your browser: visualize and measure sound to understand the frequencies, levels and content of your music.
Audio visualization · Measurement · Runs in the browser
Open tool →A complete digital audio workstation in the browser.
Free online DAW: multitrack recording, piano roll, mixer, automation, track freeze and audio export. A complete music studio in your browser.
Multitrack audio and MIDI · Piano roll · Mixer and automation · Freeze/unfreeze tracks · Export with sample rate and bit depth options
Open tool →A two-deck DJ mixer in the browser.
Free online DJ mixer: two decks and a mixer in your browser. Practise beatmatching and mixing without DJ software or hardware.
Two decks · Mixer · Runs in the browser
Open tool →User manuals for the Web Studio, Web DAW and Web DJ tools.
User manuals for the MUSICTECH4ALL Web Studio: how to use the synths, drum machines, samplers, guitars and production tools.
Instrument manuals · Step-by-step instructions
Open manual →User manual for the MUSICTECH4ALL Web DAW: tracks, recording, piano roll, mixer, automation, freezing and exporting your music.
Getting started · Recording and editing · Mixing and automation · Export
Open manual →User manual for the MUSICTECH4ALL Web DJ: loading tracks, using the two decks and the mixer, and getting started with DJ mixing.
Deck controls · Mixer · DJ basics
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