WebAudio TinySynth

Light-weight General MIDI synthesizer and MIDI player written in WebAudio JavaScript, with a keyboard demo.

Artifact by g200kg

IndexedApache-2.0★ 271Audio & videoNo sign-up

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Opens g200kg.github.io in a new tab. Nothing to install.

Open WebAudio TinySynth Source code

You provide: MIDI file or keys played
You get: Synth audio
Account: No sign-up needed
AI: No AI: a plain tool
Your input: Not stated: check the tool's privacy notes before using private data
Price: Free to use
Made with: Open-source web app
Source: Open source
Link check: Answered on Oct 31, 2026

About

WebAudio TinySynth is an open-source web app in the audio video category (web synth). It opens in your browser, so there is nothing to install. You provide MIDI file or keys played and get synth audio. It needs no account. It is a plain tool: no AI model is involved. The source code is public on GitHub (g200kg/webaudio-tinysynth).

Category: Audio & video · web synth

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Stars: 271

Details

Auth: No auth
License: Apache-2.0
Repository: github.com/g200kg/webaudio-tinysynth
Website: g200kg.github.io/webaudio-tinysynth/
First seen: Oct 31, 2026
Last checked: Oct 31, 2026
Source: GitHub

Cite this page

WebAudio TinySynth: free online tool. Agent Mart. https://agentmart.dev/artifacts/webaudio-tinysynth (last updated 2026-10-31)