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Ladybird (web browser) - Wikipedia Jump to content

Ladybird (web browser)

From Wikipedia, the free encyclopedia
Ladybird
Original authorAndreas Kling
DeveloperLadybird Browser Initiative
Repository
Written inC++
EngineLibWeb
Operating systemLinux, macOS, and other Unix-like operating systems.
Available inEnglish
TypeWeb browser
LicenseBSD 2-Clause License
Websiteladybird.org Edit this on Wikidata

Ladybird is an open-source web browser developed by the Ladybird Browser Initiative, a nonprofit organization focused on development of the browser.[1][2] It is licensed under the BSD 2-Clause License.[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] Originally a component of SerenityOS, it is now being developed as a standalone project.[7] The initiative is funded entirely through donations, with Cloudflare, FUTO, Shopify, and 37signals among its sponsors,[8] in addition to individual donations through Donorbox.[9]

Features

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Ladybird uses a new browser engine called LibWeb that is being created from scratch by the development team. Unlike SerenityOS, it will also use other open source libraries for development.[3] An ad blocking feature is planned.[10] Unlike most new web browsers, Ladybird does not rely on Chromium or Firefox and uses its own rendering engine and JavaScript engine.[11]

Core components

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  • LibWeb: Web rendering engine[12]
  • LibJS: JavaScript engine[13]
  • LibWasm: WebAssembly implementation (Wasm) – As of late July 2024, LibWasm achieved a 100% pass rate on the official WebAssembly specification test suite,[14] marking a significant milestone in its development.[15][16]
  • LibCrypto/LibTLS: Cryptography primitives and Transport Layer Security (TLS)
  • LibHTTP: HTTP/1.1 client
  • LibGfx: 2D graphics library, responsible for text rendering, image decoding, and rendering support
  • LibUnicode: Unicode and locale support
  • LibMedia: Audio and video playback
  • LibCore: Event loop, OS abstraction layer
  • LibIPC: Inter-process communication

History

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The project was initially developed by the SerenityOS community using its internal software libraries implementing specific features (with self-descriptive names prefixed with “Lib”, e.g. LibWeb, LibHTTP, LibJS, or LibWasm).

Ladybird was announced by Andreas Kling, the maintainer and founder of the SerenityOS project, in September 2022.[17]

On June 30, 2024, Kling announced that he would be stepping back from the main project to focus solely on building the Ladybird browser.[18][7] In July 2024 the Ladybird Browser Initiative announced that it was being funded by Chris Wanstrath, the co-founder of GitHub.[10][5] Ladybird began receiving sponsorships to fund its development including from large companies such as Shopify[19] and Proton VPN.[11]

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.[11] It also had the second most conformant JavaScript Engine after Firefox's SpiderMonkey.[11][19]

References

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  1. ^ LadybirdBrowser/ladybird, Ladybird, 2024-08-07, archived from the original on 2024-08-06, retrieved 2024-08-07
  2. ^ Kling, Andreas. "Announcing the Ladybird Browser Initiative". ladybird.org. Retrieved 2024-08-07.
  3. ^ a b Anderson, Tim (2024-07-03). "Ladybird web browser now funded by GitHub co-founder, promises 'no code' from rivals". DEVCLASS. Archived from the original on 2024-09-20. Retrieved 2024-09-20.
  4. ^ Kling, Andreas. "Ladybird FAQ's". ladybird.org. Retrieved 2024-08-21.
  5. ^ a b Wallen, Jack (July 17, 2025). "This new browser won't monetize your every move - how to try it". ZDNET.
  6. ^ World Wide Web Consortium (2024-09-25). "🐞Ladybird: A new, independent browser engine — written from scratch". w3.org. Archived from the original on 2024-09-17. Retrieved 2024-11-03.
  7. ^ a b "Fork! Ladybird Browser And SerenityOS To Go Separate Ways". Hackaday. July 2, 2024.
  8. ^ "Ladybird". ladybird.org. Retrieved 2025-09-25.
  9. ^ "Ladybird Browser Initiative | Ladybird Browser Initiative (Powered by Donorbox)". donorbox.org. Retrieved 2025-09-25.
  10. ^ a b Förster, Moritz (July 4, 2024). "Ladybird web browser takes off: One million US dollars from GitHub founder". Heise. Retrieved 2024-09-20.
  11. ^ a b c d Conway, Adam (12 March 2025). "4 reasons Ladybird is the most exciting new browser currently in development". XDA.
  12. ^ "What is Ladybird? Everything we know about the new browser & web engine". daily.dev. Retrieved 2025-09-07.
  13. ^ "Pwning the Ladybird browser | Jess's Cafe". jessie.cafe. Retrieved 2025-09-25.
  14. ^ WebAssembly/testsuite, WebAssembly, 2025-09-22, retrieved 2025-09-25
  15. ^ "This Month in Ladybird - July 2024 - Ladybird". ladybird.org. Retrieved 2025-09-25.
  16. ^ "LibWasm Spec Test results". ladybirdbrowser.github.io. Retrieved 2025-09-25.
  17. ^ "Ladybird browser spreads its wings". LWN.net. Archived from the original on 2024-09-26. Retrieved 2024-11-22.
  18. ^ Proven, Liam (17 October 2023). "Serenity OS turns five and emits first offspring, Ladybird". The Register. Retrieved 8 August 2024.
  19. ^ a b "This Month in Ladybird: February 2025". buttondown.com. Retrieved 2025-09-07.
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