StyleX Studio

Compile Meta's atomic CSS in your browser with the real MurmurHash compiler, live previews, themes, RTL.

StyleX Studio — compile Meta's atomic CSS in your browser with the real MurmurHash compiler, live previews, themes, RTL.

How to use StyleX Studio

  1. Pick a recipe or paste your own stylex.create style object as JSON in the editor
  2. Watch every declaration compile into one atomic class with its real MurmurHash name
  3. Read the generated CSS sorted by cascade priority, or switch to the RTL twin rules
  4. Try the live preview, flip LTR to RTL, and see logical props like marginStart change sides
  5. Merge two namespaces with stylex.props and see which declarations win each conflict
  6. Build design tokens with defineVars, override them with a dark createTheme, and copy the CSS

Features

  • Real StyleX compiler ported from facebook/stylex v0.19.1: MurmurHash2 class names, value normalizers, RTL maps and priorities
  • Atomic classes with the exact repo algorithm: x plus base-36 MurmurHash2 of property, value, pseudo and at-rule
  • Live preview driven by the generated CSS, with hover states, media queries and LTR/RTL direction switching
  • stylex.props merge demo with last-wins conflict resolution per property
  • defineVars and createTheme with the repo's real var-name hashing and override class names
  • stylex.keyframes with the real x-hash-B animation names plus firstThatWorks fallback values

Frequently asked questions

Is it free?

Yes, unlimited.

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