Simon Willison’s Weblog

How to debug JavaScript with Visual Web Developer Express. Microsoft’s best kept secret: a decent free debugger for Internet Explorer that doesn’t require you to install Microsoft Office.

Posted 2nd May 2007 at 2:06 pm

Recent articles

Video: Building a tool to copy-paste share terminal sessions using Claude Code for web - 23rd October 2025
Dane Stuckey (OpenAI CISO) on prompt injection risks for ChatGPT Atlas - 22nd October 2025
Living dangerously with Claude - 22nd October 2025

debugging 35 ie 63 javascript 723 microsoft 125 visualwebdeveloperexpress 1

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