Simon Willison’s Weblog

20th March 2010 - Link Blog

Placehold.it. Useful dynamic image generator for layout mockups—just drop an image in to a page pointing at http://placehold.it/300x200. Takes optional arguments for text, colour and format as well.

Posted 20th March 2010 at 2:32 pm

Recent articles

Generating running routes with GPT-6 Astra and ChatGPT Work - 12th September 2026
OpenAI agents attacked RubyGems back in May - 12th September 2026
Some thoughts on the Navier–Stokes Millennium Prize Problem - 8th September 2026

This is a link post by Simon Willison, posted on 20th March 2010.

design 83 images 14 layout 2

Monthly briefing

Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments.

Pay me to send you less!

Sponsor & subscribe