SiteDev Utilities & Vibe-Coding Tooling · UnJS toolkit
Type-safe regular expression builder that compiles away at build time, giving readable chained syntax and typed capture groups.
Why it’s a gem
Turns unreadable regex into English and still costs zero runtime bytes.
Markdown maintainer that regenerates blocks in your README from live data such as package metadata, file contents or badges.
Dependency-free QR code generator that renders to SVG, Unicode or ANSI in any JavaScript runtime including edge workers.
Programmatically edit JavaScript and TypeScript source files by mutating a proxied AST, preserving original formatting on write.
Self-hosted image proxy built on sharp that resizes, crops and reformats images from URL path modifiers, with caching.
Build plugin that generates metric-matched local fallback fonts automatically, eliminating layout shift while a webfont loads.
Downloads templates and subdirectories from GitHub, GitLab or Bitbucket into a local folder, with caching and offline support.