RaTeX: KaTeX-compatible LaTeX rendering engine in pure Rust

3 days ago

RaTeX parses LaTeX math and outputs a flat display list compatible with various vector backends, providing identical output from native FFI and WebAssembly.
It is built to match KaTeX in critical areas, validated via CI golden suites with pixel diff comparisons.
Targets include native apps, servers, and embedded systems without a WebView, enabling uniform math rendering across platforms.
Offers ready-to-use SDKs and WASM builds via npm, Maven, pub.dev, and SPM, with server-side PNG and CLI support.
Features include built-in mhchem-style chemistry support for \ce and \pu macros alongside ordinary math.
Rust core ensures predictable timing and no garbage collection in the hot path, suitable for mobile UIs and servers.
Differences from WebView-based solutions: avoids JavaScript bundles, uses predictable memory, and supports offline usage.
Advantages over native math SDKs include cross-platform engine consistency, chemistry macros, and TeX layout core in Rust.

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