fx0

fx0 is an open-source page design agent that turns a written brief into a single HTML file with a live preview and saved design versions

SOURCE-LISTED CAPABILITIES

What fx0 offers

  1. 01Describe a page in chat and preview the generated single-file HTML design
  2. 02Reopen earlier design versions and copy or download their HTML
  3. 03Use a design style as context and refine the page through conversation
DIFFERENTIATION

What makes it different

It combines a conversational design interface with an inspectable libfx-based implementation. The output is a standalone HTML design artifact, while the hosted workflow connects model usage to the signed-in Vercel team; it is not evidence of a deployed production website.

BEST FOR

Who should consider it

  • Developers prototyping page layouts as HTML
  • Designers exploring page directions before production implementation
BEFORE YOU CHOOSE

What to verify

  • Try one real task and compare its output with your requirements.
  • Check what data the service stores, shares, or uses for training.
  • Confirm current pricing, usage limits, and cancellation terms on the official site.
Website checked

Official link checked on Oct 21, 2026. Feature claims have not been independently tested.

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