Simon Willison’s Weblog

19th February 2026

Tool Contact form — Submit contact information through this responsive form that provides real-time validation using native HTML5 attributes and CSS-only feedback. The form validates required fields including name, email, and message content, displaying checkmarks for valid inputs and error messages for invalid entries without requiring any JavaScript.

Posted 19th February 2026 at 2:41 pm

Recent articles

The Pelican comparison grid for Astra is pretty interesting - 4th September 2026
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This is a beat by Simon Willison, posted on 19th February 2026.

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