ryohey/signal
Online MIDI Editor: signal observed · 2026-08-28
Health v2 · maintenance only
77/100
- Activity 99
- Release rhythm 35
- Longevity 100
Flags: no_releases
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 3832
- days_rel: n/a
- days_push: 7
- n_releases_24m: 0
Adoption not part of the score
2365 stars · 247 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Signal is an open-source online MIDI editor and music sequencer built with web technologies (TypeScript, React, Web Audio). It offers a multi-track piano roll editor with SoundFont playback, MIDI I/O, and WAV export, running entirely in the browser.
Use cases
- sketch musical ideas in a browser-based MIDI editor
- edit MIDI files with a multi-track piano roll
- record performances from a MIDI keyboard in the browser
- export compositions as WAV files
- compose music without installing a DAW
- load custom SoundFonts for playback
When to choose
- you want a lightweight, distraction-free tool for composing and sketching MIDI
- you need a cross-platform editor that runs in any modern browser with no install
- you want quick MIDI editing with tempo/time-signature changes and WAV export
When to avoid
- you need professional audio production features like effects and high-quality sound
- you need a full DAW workflow for mixing and mastering
- you need offline desktop-native performance beyond PWA support
Facets
application · maturity active
editor audio-processing gui media web-development developer-tools browser cross-platform midi music-sequencer piano-roll webaudio soundfont pwa music-composition web-server
2 sources
- readme: https://github.com/ryohey/signal · fetched 2026-08-28 · 1379df2e69f9
- homepage: https://signalmidi.app · fetched 2026-08-29 · 7d1673519f39
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| ryohey/signal | main | 77 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem