head to head · open source
Tone.js vs someday
Tone.js has 14,725 GitHub stars, 1,063 forks, 65 open issues and last shipped 2 days ago. someday has 1,062 stars, 59 forks, 5 open issues and last shipped 2 months ago. Tone.js leads on adoption by 1,287% (14,725 vs 1,062 stars). Tone.js is written in TypeScript under MIT; someday is written in TypeScript under MIT. Tone.js has attracted 7% as many forks as stars, someday 6%. Tone.js was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (scheduling), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Tone.js | someday | |
|---|---|---|
| GitHub stars | ★ 15K | ★ 1.1K |
| License | MIT | MIT |
| Written in | TypeScript | TypeScript |
| Last push | 2026-09-16 | 2026-07-20 |
| Forks | ⑂ 1.1K | ⑂ 59 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Tone.js if
- You weight community size — 15K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick someday if
- You want the someday feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and someday fits your workflow better
About Tone.js
Tone.js is a Web Audio framework for creating interactive music in the browser. It is written in TypeScript and released under the MIT license, and it lives in the JavaScript and Web Audio API ecosystem, where it is distributed through npm and unpkg. The project has been developed for roughly thirteen years and carries a substantial community footprint, with more than fourteen thousand stars and over a thousand forks on GitHub.
read the full Tone.js overview →
About someday
Someday is a free to host, open source calendar availability picker built on Google Apps Script for Gmail users, and it is aimed at individuals, small teams, and developers who want a Calendly style booking page without paying for or operating a separate scheduling service.
read the full someday overview →
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Frequently asked questions
Is Tone.js or someday more popular?
Tone.js has 14,725 GitHub stars and someday has 1,062. Tone.js has the larger community by that measure.
Are Tone.js and someday free?
Both are open source. Tone.js is licensed under MIT and someday under MIT. Neither carries a licence fee.
What is the difference between Tone.js and someday?
Tone.js is written in TypeScript and someday in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Tone.js or someday?
Choose Tone.js if you want the larger community (14,725 stars) or its MIT licence terms. Choose someday if its feature set, stack or MIT licence fits better. Both are self-hostable.