13th April 2026
Research
Exploring the new `servo` crate
— After the April 2026 release of the `servo` v0.1.0 crate (blog post), a concise investigation shows that Servo is now an embeddable browser engine for Rust, with a clear API centered on the `ServoBuilder`, `WebView`, and pixel readback methods. A headless CLI (`servo-shot`) successfully renders URLs or HTML files to PNG, building against stable Rust with a robust software-based rendering pipeline.
In Servo is now available on crates.io the Servo team announced the initial release of the servo crate, which packages their browser engine as an embeddable library.
I set Claude Code for web the task of figuring out what it can do, building a CLI tool for taking screenshots using it and working out if it could be compiled to WebAssembly.
The servo-shot Rust tool it built works pretty well:
git clone https://github.com/simonw/research
cd research/servo-crate-exploration/servo-shot
cargo build
./target/debug/servo-shot https://news.ycombinator.com/
Here's the result:
Compiling Servo itself to WebAssembly is not feasible due to its heavy use of threads and dependencies like SpiderMonkey, but Claude did build me this playground page for trying out a WebAssembly build of the html5ever and markup5ever_rcdom crates, providing a tool for turning fragments of HTML into a parse tree.
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