Simon Willison’s Weblog

JavaScript Minifier that doesn't break code (via) Perl re-implementation of Douglas Crockford’s classic JSMin that doesn’t clobber IE’s conditional comments, by Peter Michaux.

Posted 4th June 2007 at 5:44 pm

Recent articles

ChatGPT agent's user-agent - 4th August 2025
The ChatGPT sharing dialog demonstrates how difficult it is to design privacy preferences - 3rd August 2025
Reverse engineering some updates to Claude - 31st July 2025

conditionalcomments 3 douglas-crockford 14 ie 63 internet-explorer 25 james-bennett 19 javascript 717 jsmin 2 perl 26 pete-michaux 4

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