Simon Willison’s Weblog

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28th February 2026

Tool markdown-copy component — The `<markdown-copy>` web component renders markdown content with built-in controls for copying and viewing the source code. Users can toggle between the rendered markdown view and the raw markdown syntax using the menu button in the top-right corner, or copy the entire markdown text to their clipboard with a single click. The component automatically handles markdown formatting including headings, code blocks, tables, blockquotes, and lists.

This is a beat by Simon Willison, posted on 28th February 2026.

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