head to head · open source
serenity vs nanobrowser
serenity has 33,847 GitHub stars, 3,544 forks, 739 open issues and last shipped today. nanobrowser has 13,810 stars, 1,459 forks, 81 open issues and last shipped 1 months ago. serenity leads on adoption by 145% (33,847 vs 13,810 stars). serenity is written in C++ under BSD-2-Clause; nanobrowser is written in TypeScript under Apache-2.0. serenity has attracted 10% as many forks as stars, nanobrowser 11%. serenity was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (browser), 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
| serenity | nanobrowser | |
|---|---|---|
| GitHub stars | ★ 34K | ★ 14K |
| License | BSD-2-Clause | Apache-2.0 |
| Written in | C++ | TypeScript |
| Last push | 2026-09-20 | 2026-08-18 |
| Forks | ⑂ 3.5K | ⑂ 1.5K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick serenity if
- You weight community size — 34K stars and counting
- You want the BSD-2-Clause license terms
- Your stack matches C++
- You value the larger contributor base for long-term maintenance
pick nanobrowser if
- You want the nanobrowser feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and nanobrowser fits your workflow better
About serenity
SerenityOS is a graphical Unix like operating system built for 64 bit x86, Arm, and RISC V computers. It is written in C++ and released under the BSD 2 Clause license, and it lives in the open source operating system ecosystem alongside other hobbyist and research kernels. The project describes itself as a love letter to 1990s user interfaces paired with a custom Unix like core, aiming for a marriage between the aesthetic of late 1990s productivity software and the power user accessibility of late 2000s Unix systems.
read the full serenity overview →
About nanobrowser
Nanobrowser is an open source Chrome extension for AI powered web automation that runs multi agent workflows inside your own browser using your own LLM API key, built for people who want Operator style browser agents without a subscription.
read the full nanobrowser overview →
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Frequently asked questions
Is serenity or nanobrowser more popular?
serenity has 33,847 GitHub stars and nanobrowser has 13,810. serenity has the larger community by that measure.
Are serenity and nanobrowser free?
Both are open source. serenity is licensed under BSD-2-Clause and nanobrowser under Apache-2.0. Neither carries a licence fee.
What is the difference between serenity and nanobrowser?
serenity is written in C++ and nanobrowser 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, serenity or nanobrowser?
Choose serenity if you want the larger community (33,847 stars) or its BSD-2-Clause licence terms. Choose nanobrowser if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.