Squidalyser is a squid traffic analyser, designed to allow per-user scrutiny and analysis of squid logfiles. The program allows a non-technical user to extract information about web usage patterns, the type of information downloaded, the sites visited by users, the graphics downloaded, and the amount of information (per-byte or per-file) accessed. The program runs from a Unix system via a web browser.

The intention is to augment or replace the use of so-called censorware in certain environments, given that such systems of censorship are inevitably unreliable and imprecise.