01
ferroni
Regex engine
Oniguruma-compatible regex engine in pure Rust. Named captures, variable-length look-behind, 886 Unicode properties — no C toolchain.
Ferramenta · Italian for “hardware store”
Rust-native tools. The APIs you already know.
Ferramenta is a family of developer tools by Sebastian Software. Each one takes a job the web ecosystem already solved — regex scanning, syntax highlighting, Markdown, SVG optimization — and rebuilds it on a fast, memory-safe Rust core, without breaking the contract of the original.
The content pipeline
Three tools, one chain
ferroni scans, ferriki highlights, ferromark renders. Together they turn Markdown with code into highlighted HTML — end to end in Rust.
02
ferriki
Syntax highlighting
Shiki-compatible syntax highlighting with a native Rust core. The API you know from Shiki, verified against the upstream test suite.
03
ferromark
Markdown
Markdown to HTML at 300+ MiB/s. Full CommonMark, every GFM extension, footnotes, callouts, math — and MDX without a JS toolchain.
The rest of the shelf
More tools in the store
ferrovia
SVGO-compatible SVG optimizer with differential verification against svgo.
ferrocat
Translation catalog engine for PO, FCL, and ICU MessageFormat — git-merge-friendly and AI-translation-native.
ferrolex
Spell, dictionary, and brand validation toolkit for code and localization workflows.
ferrugo
Rust-native PDF previews for server-side thumbnails and document automation.
How we build
Same principles, every tool
Compatible by contract
Each tool keeps the API of the ecosystem standard it replaces — Oniguruma, Shiki, CommonMark, SVGO — and proves it against the upstream test suites, not just in the README.
Native core, familiar surface
The heavy lifting happens in Rust. JavaScript stays a thin host layer where the ecosystem needs one, published as prebuilt binaries for every major platform.
Boring releases
Every tool ships the same way: conventional commits, release-please, CI gates against upstream compatibility suites, MIT licensed.