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GeezerVison is showing ladybird.org — Ladybird

A truly independent
web browser

Ladybird is a new browser engine built from scratch, backed by a 501(c)(3) non-profit.

Our first Alpha for macOS and Linux is coming later this year.

Get involved Donate
Ladybird showing the Wikipedia article about Ladybird Ladybird showing the Wikipedia article about Ladybird

About

The web is the most important platform in computing, yet only a small number of browser engines power the entire thing, each controlled by a company with its own agenda.

Ladybird is built on web standards and free from conflicts of interest.

What makes Ladybird different

  1. Independent

    A new engine written from scratch. Not a fork of Chromium, Gecko or WebKit.

  2. Just a browser

    We build a web browser, and nothing else.

  3. No monetization

    No "default search deals", crypto tokens, or other forms of user monetization.

News

2026-10-31
This Month in Ladybird - October 2026

CSS animations and hover that keep working while JavaScript is busy, a JavaScript JIT, a new WebAssembly engine, and a redesigned UI.

2026-09-30
This Month in Ladybird - September 2026

Security hardening with Trail of Bits, costly idle pages, smoother animation, hardware video decoding, and more of the web working in Ladybird.

2026-08-31
This Month in Ladybird - August 2026

Video on Twitch and YouTube, CSS scroll snap, JavaScript debugging, session restore, and a serious push on engine performance with a new style engine.

2026-07-31
This Month in Ladybird - July 2026

Private browsing, browser profiles, undo/redo, geolocation, WebAudio, a faster compositor, and moving style and layout to Rust.

2026-06-30
This Month in Ladybird - June 2026

Download management, sandboxing, browsing history, DevTools storage inspection, media playback speed, GPU isolation, WebAssembly GC, and more.

2026-06-05
Changing How We Develop Ladybird

Ladybird is changing how code enters the project as we prepare to ship a browser to real users.

See all posts →

Get involved

Ladybird is open source, developed by a small team in the open. You can help by filing bug reports, creating reductions, testing websites, reporting security issues, and sharing technical feedback.

You can clone the code and run Ladybird locally. On many development machines it is as simple as this: 

$ git clone https://github.com/LadybirdBrowser/ladybird.git
$ cd ladybird
$ ./Meta/ladybird.py run

For more detailed, operating-system-specific information, check out our full build instructions. For more about how Ladybird development works, see Changing How We Develop Ladybird.

Source code github.com/LadybirdBrowser/ladybird Community chat Discord

Sponsors

Platinum

FUTO
Shopify Shopify
Cloudflare Cloudflare

Gold

Human Rights Foundation Human Rights Foundation
Proton VPN Proton VPN

Silver

Mitchell Hashimoto
Paul Copplestone
37signals 37signals
Axeptio Axeptio
Andreas Mähler
CodeRabbit CodeRabbit

Bronze

JetBrains JetBrains
Bastian Müller
Sourcegraph Sourcegraph
SerpApi SerpApi
The Primeagen
K15t K15t
Unkey Unkey
Gravwell Gravwell
Anonymous Chromium Developer
Kinde Australia Pty Ltd Kinde Australia Pty Ltd
Zeroramp Zeroramp
Arnav Guleria

Copper

Travis Heinström , Sjors Witteveen , b1ack0wl , Gian Giovani , Timely Learning , Coursiv , Andrew Mead , styfle , Tyler Horvath , Hnefatafl Org , Softwired Technologies , Zain Allarakhia , zacoons , Jakub Stęplowski , wheelofnames.com , All Things Secured , publicqi

Infrastructure Sponsors

Blacksmith Blacksmith
OakHost OakHost

Previous sponsors

Support the project

Ladybird is funded entirely by donations and sponsorships.

Become a sponsor

Sponsors are recognized on our website and in project updates. Sponsorships run for one year.

Platinum$100,000
Gold$50,000
Silver$10,000
Bronze$5,000
Copper$1,000

For sponsorship inquiries, email [email protected].

Individual donations

One-time or recurring monthly donations via Donorbox.

Donate

For larger donations, please contact us directly to avoid processing fees.

Frequently asked questions

When is it coming?

Our first Alpha for macOS and Linux is coming later this year. It will be aimed at developers and early adopters.

How many people are working on the browser today?

We have a small full-time engineering team working on Ladybird, supported by community testing, bug reports, security reports, and technical feedback.

What's the hiring plan?

Our team size is stable for now. We will revisit hiring as the project's needs evolve.

We will strive to maintain 18 months of runway at all times.

What do you mean by "not a fork of an existing engine"?

The focus of the Ladybird project is to build a new browser engine from the ground up. We don't use code from Blink, WebKit, Gecko, or any other browser engine.

For historical reasons, the browser uses various libraries from the SerenityOS project, which has a strong culture of writing everything from scratch. Now that Ladybird has forked from SerenityOS, it is no longer bound by this culture, and we make use of 3rd party libraries for common functionality (e.g. image/audio/video formats, encryption, graphics, etc.), including some of the same libraries used by other browsers.

Will Ladybird work on Windows?

Our CI already builds and tests the JavaScript engine on Windows. Full browser engine support on Windows will follow in time.

Our full-time engineers are currently focused on macOS and Linux, with Windows support planned for a later stage of the project.

Will Ladybird work on mobile devices?

Mobile platforms are not a current focus. More effort will be put into Android and iOS once the desktop versions are in a good state.

How can you be "independent" if you have sponsors?

All sponsorships are in the form of unrestricted donations. Board seats and other forms of influence are not for sale, and sponsors have no say in our technical roadmap or product direction.

Why build a new browser in C++ when safer and more modern languages are available?

Ladybird began as part of SerenityOS, a C++ project, so the codebase started and largely remains C++. We have since adopted Rust as our C++ successor language and are incrementally porting subsystems to Rust. See our announcement post for more details.

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