head to head · open source
Tone.js vs koordinator
Tone.js has 14,725 GitHub stars, 1,063 forks, 65 open issues and last shipped 2 days ago. koordinator has 1,757 stars, 480 forks, 228 open issues and last shipped 3 days ago. Tone.js leads on adoption by 738% (14,725 vs 1,757 stars). Tone.js is written in TypeScript under MIT; koordinator is written in Go under Apache-2.0. Tone.js has attracted 7% as many forks as stars, koordinator 27%. 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 | koordinator | |
|---|---|---|
| GitHub stars | ★ 15K | ★ 1.8K |
| License | MIT | Apache-2.0 |
| Written in | TypeScript | Go |
| Last push | 2026-09-16 | 2026-09-15 |
| Forks | ⑂ 1.1K | ⑂ 480 |
| 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 koordinator if
- You want the koordinator feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and koordinator 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 koordinator
Koordinator is an Apache 2.0 licensed scheduling system written in Go for Kubernetes. It is positioned as a QoS based scheduling system for hybrid orchestration workloads, including microservices, web services, big data jobs, and AI jobs. The project lives in the cloud native Kubernetes ecosystem and is described through topics such as colocation, cost optimization, scheduling, and workload consolidation. The public repository reports 1,754 stars, 479 forks, 228 open issues, and a last push date of 2026 09 15.
read the full koordinator overview →
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Frequently asked questions
Is Tone.js or koordinator more popular?
Tone.js has 14,725 GitHub stars and koordinator has 1,757. Tone.js has the larger community by that measure.
Are Tone.js and koordinator free?
Both are open source. Tone.js is licensed under MIT and koordinator under Apache-2.0. Neither carries a licence fee.
What is the difference between Tone.js and koordinator?
Tone.js is written in TypeScript and koordinator in Go. 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 koordinator?
Choose Tone.js if you want the larger community (14,725 stars) or its MIT licence terms. Choose koordinator if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.