A Rust clone targeting Tailwind CSS v4.1 behavior.
ironframe is an OSS project that re-implements Tailwind CSS v4.1-equivalent features in Rust. It separates scanner, generator, config, and CLI crates for fast iteration in learning and prototyping.
JIT Build Loop
Comes with scan/build/watch commands so you can regenerate CSS quickly as templates change.
Tailwind-style Input
Supports workflows around @import tailwindcss, @source, @apply, and split imports.
Modular Rust Design
Split into core/scanner/generator/config/cli crates for easier extension and experimentation.
Setup and validation workflow
After cloning the repository, install the CLI (or run through cargo) and start with scan/build to verify class extraction and CSS output.
Install
cargo install --path .
CLI Example
# 1) Run without installing
cargo run -- scan "src/**/*.{html,tsx}"
# 2) Build once
ironframe build --output dist/tailwind.css "src/**/*.{html,tsx}"
# 3) Build with template CSS and config
ironframe build -i src/app.css -c ironframe.toml -o dist/app.css "src/**/*.{html,tsx}"
# 4) Compare output with reference CSS
ironframe build -i src/app.css -o dist/app.css --compare-css dist/app.tailwind.css "src/**/*.{html,tsx}"
# 5) Watch mode with polling
ironframe watch --poll --poll-interval 250 -o dist/app.css "src/**/*.{html,tsx}"
Important Note
ironframe is a learning/prototyping implementation targeting Tailwind CSS v4.1-equivalent behavior so validate compatibility and output differences against your existing CSS before production use.
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README / Full Specs