head to head · open source
Zen Browser vs tus-js-client
Zen Browser has 44,486 GitHub stars, 1,755 forks, 689 open issues and last shipped 2 days ago. tus-js-client has 2,624 stars, 341 forks, 77 open issues and last shipped 3 days ago. Zen Browser leads on adoption by 1,595% (44,486 vs 2,624 stars). Zen Browser is written in C++ under MPL-2.0; tus-js-client is written in JavaScript under MIT. Zen Browser has attracted 4% as many forks as stars, tus-js-client 13%. Zen Browser was the more recently maintained of the two, and both are self-hostable with no licence fee.
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
| Zen Browser | tus-js-client | |
|---|---|---|
| GitHub stars | ★ 44K | ★ 2.6K |
| License | MPL-2.0 | MIT |
| Written in | C++ | JavaScript |
| Last push | 2026-09-17 | 2026-09-16 |
| Forks | ⑂ 1.8K | ⑂ 341 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Zen Browser if
- You weight community size — 44K stars and counting
- You want the MPL-2.0 license terms
- Your stack matches C++
- You value the larger contributor base for long-term maintenance
pick tus-js-client if
- You want the tus-js-client feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches JavaScript
- You evaluated both and tus-js-client fits your workflow better
About Zen Browser
Zen Browser is a privacy focused, open source web browser built on Firefox’s Gecko engine. It inherits Firefox’s compatibility and extension ecosystem while introducing a streamlined interface and productivity oriented features. The project lives in the desktop browser ecosystem, targeting users who want a Firefox based experience with reduced clutter and enhanced customization.
read the full Zen Browser overview →
About tus-js-client
tus js client is a pure JavaScript client for the tus resumable upload protocol, aimed at developers who need file uploads that survive interruptions inside browsers, Node.js, React Native, or Apache Cordova applications.
read the full tus-js-client overview →
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Frequently asked questions
Is Zen Browser or tus-js-client more popular?
Zen Browser has 44,486 GitHub stars and tus-js-client has 2,624. Zen Browser has the larger community by that measure.
Are Zen Browser and tus-js-client free?
Both are open source. Zen Browser is licensed under MPL-2.0 and tus-js-client under MIT. Neither carries a licence fee.
What is the difference between Zen Browser and tus-js-client?
Zen Browser is written in C++ and tus-js-client in JavaScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Zen Browser or tus-js-client?
Choose Zen Browser if you want the larger community (44,486 stars) or its MPL-2.0 licence terms. Choose tus-js-client if its feature set, stack or MIT licence fits better. Both are self-hostable.