About the Moose Tracker music tracker and synth

Moose Tracker music tracker and synth is a free online music tracker and synthesizer that runs in your browser. No sign-up, no install, no account. It does chiptune, and it is more than chiptune: a full synth engine that also makes jazz, drum and bass, lo-fi and more. It is a synthesizer and tracker, not an AI music generator: it plays exactly the notes you (or an AI assistant you use) write, with its own built-in sounds and drum kits, and it does not copy other people's recordings. Open Moose Tracker.

More than chiptune: a real online synthesizer (FM synth included)

Use it as an 8 bit music maker or chiptune maker with pulse, triangle and noise voices, or reach for the full engine: analog-style subtractive synthesis, FM synthesis, samples, drum kits, envelopes, filters, LFOs and effects such as reverb, echo and chorus. It is a free online synthesizer and FM synth you can play on the on-screen keys and pads or a MIDI keyboard, with a pattern grid, a piano roll, a mixer and a song arranger. If you are looking for a free online DAW with no sign up, it is a tracker-style music workstation rather than a recording studio: you write and arrange notes, you do not record audio.

Make music online free, no sign up

Write notes in a grid or play them on the keys and pads, shape sounds with knobs and graphs, add swing and microtiming, and export WAV, Opus or MP3. It is a free online music tracker for first-time music makers and working musicians. The lessons run from "what is a tracker" to sampling and effects. No sign-up. No AI generation: you (or your assistant) write the notes.

Video game music maker (no AI)

Write a level theme, a boss fight or a menu loop and export it as a WAV or MP3 file. Songs can play once or loop. Looking for an sfxr, bfxr or BeepBox alternative? Moose Tracker is another place to make retro game audio: it is a full tracker with a synth engine behind it, and everything it makes is yours to use.

Sound effect generator for games, and free UI sound effects

Build a coin, a jump, a laser or an explosion, or make original click, tap, toggle and notification sounds for an app, including short sounds that pair well with haptics. Sound effects export as WAV. The sounds are original and free to use, including commercially.

The Grok plugin: let your assistant write the music

The Moose Tracker plugin for Grok gives your assistant this synth and tracker. It writes sound effects and full songs as notes, Moose Tracker checks and plays them, and you get WAV or Ogg files, songs that play once or loop, or a link that opens the song in your browser. It is not an AI music model, so it costs far fewer tokens than generating audio. The plugin is open source on GitHub and has been submitted to the Grok marketplace. How to use Moose Tracker with Grok, Claude, ChatGPT, Cursor and other assistants.

Free to use, and your music is yours

Moose Tracker is free. The demo songs, presets, instruments and every sound it makes are dedicated to the public domain (CC0), so you can use them for any purpose, including commercial use, with no attribution required. Music you create belongs to you. The website never receives it, and the optional render service keeps audio files only briefly (see Privacy). See the Content license.

Contact

moose@moosetracker.app

Open-source parts

MP3 export uses lamejs (LGPL v3), shipped unmodified. Its license, source link and how to replace it are under lamejs in the Third-party notices.

Contact: moose@moosetracker.app.