param-miner

It combines advanced diffing logic from Backslash Powered Scanner with a binary search technique to guess up to 65,000 param names per request. Param names come from a carefully curated built in wordlist, and it also harvests additional words from all in-scope traffic.

You can also launch guessing attacks on multiple selected requests at the same time - this will use a thread pool so you can safely use it on thousands of requests if you want. Alternatively, you can enable auto-mining of all in scope traffic.