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Ladybird (web browser)
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| Ladybird | |
|---|---|
 | |
 Ladybird, showing the main page of Wikipedia | |
| Original author | Andreas Kling |
| Developer | Ladybird Browser Initiative |
| Written in | C++ |
| Engines |
|
| Operating system | |
| Available in | English |
| Type | Web browser |
| License | BSD 2-Clause License |
| Website | ladybird |
| Repository | |
Ladybird is an open-source web browser licensed under the BSD 2-Clause License.[1] It is developed by the Ladybird Browser Initiative, a nonprofit organization focused solely on development of the browser.[2] The initiative is funded entirely through donations, with Cloudflare, FUTO, Shopify, and 37signals among its sponsors.
Originally created as a component of SerenityOS in 2019, it matured to be developed as a standalone project from 2022 onwards.[3] An alpha release is planned in 2026,[4][5] beta release is expected in 2027, and a stable release for general public in 2028.[6]
It is a browser engine that is not based on an existing browser engine (e.g. Google's Chromium, Mozilla's Gecko, or Apple's WebKit). Ladybird uses its own rendering engine and JavaScript interpreter with WebAssembly support.[7] The project also uses popular open source libraries (unlike its predecessor in SerenityOS).[1]
An ad blocking feature will be implemented into the finished product.[8]
History
The project was initially developed by the SerenityOS community[9] using its internal software libraries implementing specific features (with self-descriptive names prefixed with “Lib”, e.g. LibWeb, LibHTTP, LibJS, or LibWasm). Ladybird was spun off into a separate project in September 2022 by Andreas Kling, the founder and a former maintainer of the SerenityOS project.[10]
On 30 June 2024, Kling announced that he would be stepping back from the SerenityOS project to focus solely on building the Ladybird browser.[9][3] In July 2024 the Ladybird Browser Initiative announced that it was being funded by Chris Wanstrath, the co-founder of GitHub.[8][5] Ladybird began receiving sponsorships to fund its development including from large companies such as Shopify and Proton VPN.[7]
As of March 2025, it ranked fourth-highest on the Web Platform Tests, a suite of tests used by browser developers, below Chrome, Safari and Firefox.[7] It also had the second most conformant JavaScript engine after Firefox's SpiderMonkey.[7][11]
In February 2026, Ladybird started porting the JavaScript parser and bytecode generator from C++ to Rust. The developer was assisted by Claude Code and OpenAI Codex artificial intelligence.[12][13]
On 5 June 2026, the project announced they will no longer accept public pull requests nor allow any other channels for submitting patches from non-maintainers, citing concerns about lower-quality contributions and the need for better security as the browser gets closer to its first alpha release—the code licence will still be available as open-source.[14]
References
- 1 2 Anderson, Tim (3 July 2024). "Ladybird web browser now funded by GitHub co-founder, promises 'no code' from rivals". DEVCLASS. Archived from the original on 20 September 2024. Retrieved 20 September 2024.
- ↑ Kling, Andreas. "Announcing the Ladybird Browser Initiative". ladybird.org. Retrieved 7 August 2024.
- 1 2 "Fork! Ladybird Browser And SerenityOS To Go Separate Ways". Hackaday. 2 July 2024.
- ↑ Kling, Andreas. "Ladybird FAQ's". ladybird.org. Retrieved 21 August 2024.
- 1 2 Wallen, Jack (17 July 2025). "This new browser won't monetize your every move - how to try it". ZDNET.
- ↑ World Wide Web Consortium (25 September 2024). "🐞Ladybird: A new, independent browser engine — written from scratch". w3.org. Archived from the original on 17 September 2024. Retrieved 3 November 2024.
- 1 2 3 4 Conway, Adam (12 March 2025). "4 reasons Ladybird is the most exciting new browser currently in development". XDA.
- 1 2 Förster, Moritz (4 July 2024). "Ladybird web browser takes off: One million US dollars from GitHub founder". Heise. Retrieved 20 September 2024.
- 1 2 Proven, Liam (17 October 2023). "Serenity OS turns five and emits first offspring, Ladybird". The Register. Retrieved 8 August 2024.
- ↑ "Ladybird browser spreads its wings". LWN.net. Archived from the original on 26 September 2024. Retrieved 22 November 2024.
- ↑ "This Month in Ladybird: February 2025". buttondown.com. Retrieved 7 September 2025.
- ↑ Kling, Andreas (23 February 2026). "Ladybird adopts Rust, with help from AI". ladybird.org. Archived from the original on 8 March 2026. Retrieved 16 March 2026.
- ↑ corbet (23 February 2026). "The Ladybird browser project shifts to Rust". Linux Weekly News. Archived from the original on 5 March 2026. Retrieved 16 March 2026.
- ↑ Kling, Andreas (5 June 2026). "Changing How We Develop Ladybird". ladybird.org. Retrieved 8 June 2026.
External links
