Ladybird
Ladybird: A standards-focused browser project for early adopters comfortable with pre-alpha software. Ranked #100 of 145 in Web Browsers by our editors (3.0/10); pricing: Free plan; best for early adopters of an independent web engine.
At a glance
- Editor score3.0 / 10
- PricingFree plan
- Best forEarly adopters of an independent web engine
- Free planYes
- Paid fromFree
- Browser engineOther
- Founded2024 · San Francisco, California, United States
- Facts checked19 Sep 2026
Where it wins
- Built from scratch around web standards
- Sandboxed renderer processes and configurable content blocking
- Profiles, private windows, and JavaScript debugging tools
Where it doesn't
- Pre-alpha and suitable only for developers
- Currently targets Linux and macOS
- Extension support is still under development
Our verdict on Ladybird
Ladybird is an independent, open-source browser and browser engine developed from scratch around web standards. It is aimed at early adopters, especially developers interested in a new browser engine and willing to work with software still in pre-alpha. The project targets Linux and macOS for its first alpha, with a 2026 release target. Its approach may appeal to people who want to follow a standards-focused alternative, but it is not positioned as a mature everyday replacement for established browsers.
The feature set includes multi-process architecture with sandboxed renderer processes, configurable content blocking based on Adblock Plus/EasyList-style filter lists, private browsing windows, and profiles for settings, bookmarks, history, cookies, and site storage. Developer tools include JavaScript debugging; downloads can be paused and resumed, and session restore is available. WebAssembly just-in-time compilation is also included. These capabilities give the project meaningful browser functionality while its engine and compatibility work continue.
Platform scope and maturity are the clearest trade-offs. Linux and macOS are the current target platforms, while Windows and mobile support are not current priorities; extension support remains under development. Ladybird is free and open-source, and is operated by the Ladybird Browser Initiative, a US 501(c)(3) nonprofit. Choose it if you want to explore an independent engine and can accept pre-alpha limitations. If you need a polished, broadly supported browser or established extension support, a more mature alternative is a better fit.
Your product? Our editors can test Ladybird in depth and publish a review, labelled as paid · from $149/mo →
Ladybird pricing
Ladybird fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Supported platforms | Both |
| Browser engine | Other |
| Built-in ad blocking | Yes |
| Tracking protection | Not verified |
| Extension support | Not verified |
| Cross-device sync | Not verified |
| Open source | Yes |
| Deployment | Desktop |
| Platforms | Linux, macOS |
| Pricing | Free plan |
| Website | ladybird.org |
| Facts checked | 19 Sep 2026 |
Alternatives to Ladybird
- Google ChromeA complete free browser with broad platform coverage, sync, extensions, and built-in security.9.3
- Microsoft EdgeA free, cross-platform browser suited to Microsoft users who want broad compatibility.9.2
- Mozilla FirefoxA mature, privacy-focused browser for everyday browsing across desktop and mobile.9.1
See all Ladybird alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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