The web browser landscape has been stuck in technical stasis for years, with nearly every alternative to Chrome, aside from Firefox, essentially just wrapping Google’s engine in a different coat. Ladybird chose the harder path: build everything from scratch. Progress through March 2026 shows this bet is paying off, transforming what started as a niche project into a platform that’s growing snappier and more capable of handling modern web demands.

The engine driving this shift is called AsmInt. It’s a hand-written JavaScript interpreter in assembly language for x86_64 and AArch64 architectures. Instead of routing through the usual C++ translation layers, the browser now speaks far more directly to the hardware. Speed improvements in testing range from 37% to 69% depending on the operation type. Page navigation feels noticeably more responsive, especially on script-heavy websites.

4K video and code cleanup

For the first time, Ladybird properly handles VP9 video streams and Opus audio inside WebM containers. This means YouTube support took a generational leap forward, allowing video quality selection up to 4K. Right now it’s tucked behind an experimental flag because memory usage is still high and some buffered data cleanup mechanisms are missing, but the signal is unmistakable: independence doesn’t mean sacrificing visual quality.

By ditching the old JavaScript compilation system for a leaner architecture, the project gained stability. The regex engine was also completely rewritten from scratch using Rust, a choice that delivered roughly six times faster performance compared to before.

What is Ladybird

For newcomers, Ladybird is a browser unlike any other. Unlike nearly all competitors (Edge, Brave, Opera), it doesn’t borrow Google’s engine (Chromium) or Apple’s (WebKit). The goal is software that respects web standards without bending to Silicon Valley’s business logic, offering a real and transparent alternative.

Bookmarks and smoother browsing

Beyond the engine work, March brought practical improvements. The browser now supports persistent bookmarks saved in JSON format, a basic feature that matters for daily use. Multiple display issues on popular sites like Microsoft.com and Chess.com were resolved through better CSS handling and parallel loading. With over two million compatibility tests passing, Ladybird is no longer just an experiment. It’s becoming software that genuinely chews through the real web with serious competence.