head to head · open source
Zen Browser vs nextai-translator
Zen Browser has 44,481 GitHub stars, 1,754 forks, 689 open issues and last shipped yesterday. nextai-translator has 24,985 stars, 1,850 forks, 529 open issues and last shipped 15 days ago. Zen Browser leads on adoption by 78% (44,481 vs 24,985 stars). Zen Browser is written in C++ under MPL-2.0; nextai-translator is written in TypeScript under AGPL-3.0. Zen Browser has attracted 4% as many forks as stars, nextai-translator 7%. 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 | nextai-translator | |
|---|---|---|
| GitHub stars | ★ 44K | ★ 25K |
| License | MPL-2.0 | AGPL-3.0 |
| Written in | C++ | TypeScript |
| Last push | 2026-09-17 | 2026-09-03 |
| Forks | ⑂ 1.8K | ⑂ 1.9K |
| 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 nextai-translator if
- You want the nextai-translator feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches TypeScript
- You evaluated both and nextai-translator 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 nextai-translator
NextAI Translator is an open source, AGPL 3.0 licensed browser extension and cross platform desktop application that performs selected text translation, polishing, and summarization through the ChatGPT API, and it is aimed at readers, writers, and developers who want all three of those operations available on Windows, macOS, and Linux rather than on a single platform.
read the full nextai-translator overview →
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Frequently asked questions
Is Zen Browser or nextai-translator more popular?
Zen Browser has 44,481 GitHub stars and nextai-translator has 24,985. Zen Browser has the larger community by that measure.
Are Zen Browser and nextai-translator free?
Both are open source. Zen Browser is licensed under MPL-2.0 and nextai-translator under AGPL-3.0. Neither carries a licence fee.
What is the difference between Zen Browser and nextai-translator?
Zen Browser is written in C++ and nextai-translator 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, Zen Browser or nextai-translator?
Choose Zen Browser if you want the larger community (44,481 stars) or its MPL-2.0 licence terms. Choose nextai-translator if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.