head to head · open source
serenity vs obscura
serenity has 33,840 GitHub stars, 3,541 forks, 739 open issues and last shipped yesterday. obscura has 27,331 stars, 2,005 forks, 134 open issues and last shipped 4 days ago. serenity leads on adoption by 24% (33,840 vs 27,331 stars). serenity is written in C++ under BSD-2-Clause; obscura is written in Rust under Apache-2.0. serenity has attracted 10% as many forks as stars, obscura 7%. 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 | obscura | |
|---|---|---|
| GitHub stars | ★ 34K | ★ 27K |
| License | BSD-2-Clause | Apache-2.0 |
| Written in | C++ | Rust |
| Last push | 2026-09-17 | 2026-09-14 |
| Forks | ⑂ 3.5K | ⑂ 2.0K |
| 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 obscura if
- You want the obscura feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Rust
- You evaluated both and obscura 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 obscura
Obscura is an open source headless browser engine written in Rust, built for web scraping and AI agent automation. It runs real JavaScript through V8, speaks the Chrome DevTools Protocol, and presents itself as a drop in replacement for headless Chrome when driven by Puppeteer or Playwright. The project lives in the browser automation and headless browser corner of the Rust ecosystem, and it ships under the Apache 2.0 license.
read the full obscura overview →
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Frequently asked questions
Is serenity or obscura more popular?
serenity has 33,840 GitHub stars and obscura has 27,331. serenity has the larger community by that measure.
Are serenity and obscura free?
Both are open source. serenity is licensed under BSD-2-Clause and obscura under Apache-2.0. Neither carries a licence fee.
What is the difference between serenity and obscura?
serenity is written in C++ and obscura in Rust. 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 obscura?
Choose serenity if you want the larger community (33,840 stars) or its BSD-2-Clause licence terms. Choose obscura if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.