head to head · open source
Tone.js vs Saturn
Tone.js has 14,725 GitHub stars, 1,063 forks, 65 open issues and last shipped 2 days ago. Saturn has 2,305 stars, 686 forks, 279 open issues and last shipped 10 months ago. Tone.js leads on adoption by 539% (14,725 vs 2,305 stars). Tone.js is written in TypeScript under MIT; Saturn is written in Java under Apache-2.0. Tone.js has attracted 7% as many forks as stars, Saturn 30%. 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.
← all 8884 open source comparisons
Side by side
| Tone.js | Saturn | |
|---|---|---|
| GitHub stars | ★ 15K | ★ 2.3K |
| License | MIT | Apache-2.0 |
| Written in | TypeScript | Java |
| Last push | 2026-09-16 | 2025-11-12 |
| Forks | ⑂ 1.1K | ⑂ 686 |
| 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 Saturn if
- You want the Saturn feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Java
- You evaluated both and Saturn 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 Saturn
Saturn is distributed job scheduling platform. Created by VIP.com. Java based. Apache 2.0 licensed. GitHub shows 2305 stars, 686 forks, last push 2025 11 12. It is listed under business software scheduling and event management. Repository age is 10 years. Lives in open source Java scheduling ecosystem. Provides fault tolerant and high available job scheduling service. Targets time based jobs across many machines.
read the full Saturn overview →
More in Business Software
Related comparisons
More Scheduling & Event Management projects
Compare either of these against the rest of the Scheduling & Event Management field.
Frequently asked questions
Is Tone.js or Saturn more popular?
Tone.js has 14,725 GitHub stars and Saturn has 2,305. Tone.js has the larger community by that measure.
Are Tone.js and Saturn free?
Both are open source. Tone.js is licensed under MIT and Saturn under Apache-2.0. Neither carries a licence fee.
What is the difference between Tone.js and Saturn?
Tone.js is written in TypeScript and Saturn in Java. 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 Saturn?
Choose Tone.js if you want the larger community (14,725 stars) or its MIT licence terms. Choose Saturn if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.