Hash Sniffer is a simple tool for keygenners. Use it to do test hashes on app data. I coded it as a personal tool but I think other keygenners will find it useful too.
Version 1.0 supports just the popular hashing algos MD5 and SHA1. I'll add other hash algos later.
Use
1) Select data to be hashed in Ollydbg dump or memory window
2) Right click and select "Hash Sniffer"