Simon Willison’s Weblog

Justniffer. Packet sniffing tool that can output sniffed HTTP traffic formatted the same way as an Apache access_log file.

Posted 25th September 2009 at 10:12 pm

Recent articles

The last six months in LLMs, illustrated by pelicans on bicycles - 6th June 2025
Tips on prompting ChatGPT for UK technology secretary Peter Kyle - 3rd June 2025
How often do LLMs snitch? Recreating Theo's SnitchBench with LLM - 31st May 2025

justniffer 1 packetsniffing 1 networking 22 apache 37 logging 19

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