head to head · open source
serenity vs nanobrowser
serenity has 33,943 GitHub stars, 3,493 forks, 739 open issues and last shipped 2 days ago. nanobrowser has 14,232 stars, 1,522 forks, 81 open issues and last shipped 12 days ago. serenity leads on adoption by 138% (33,943 vs 14,232 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 | 2026-11-03 | 2026-10-24 |
| 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 Graphical Unix like operating system for 64 bit x86, Arm, and RISC V computers. FAQ Documentation Build Instructions About SerenityOS is a love letter to '90s user interfaces with a custom Unix like core. It flatters with sincerity by stealing beautiful ideas from various other systems. Roughly speaking, the goal is a marriage between the aesthetic of late 1990s productivity software and the power user accessibility of late 2000s \ nix. This is a system by us, for us, based on the things we like. You can watch videos of the system being developed on YouTube: Andreas Kling's channel Linus Groh's…
read the full serenity overview →
About nanobrowser
🌐 Nanobrowser Nanobrowser is an open source AI web automation tool that runs in your browser. A free alternative to OpenAI Operator with flexible LLM options and multi agent system. ⬇️ Get Nanobrowser from Chrome Web Store for free 👏 Join the community in Discord X 🌟 Loving Nanobrowser? Give us a star and help spread the word! ❤️ Support the project by sponsoring us every contribution helps keep Nanobrowser free and open source! Nanobrowser's multi agent system analyzing HuggingFace in real time, with the Planner intelligently self correcting when encountering obstacles and dynamically instructing the…
read the full nanobrowser overview →
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Frequently asked questions
Is serenity or nanobrowser more popular?
serenity has 33,943 GitHub stars and nanobrowser has 14,232. 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 (33,943 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.