I was using a password manager which crashed and lost all of my passwords. I was able to reset most of them but my wallet password is lost and I have no idea what it could be. Its either 10,12, or 30 random characters. I have the json file which text starts with a 78yu and was hosted on blockchain.info. There isn't probably very much in there, but is there any way to recover it?
Wow, which password manager was that?
If you have previous backups of the password database, you could try to open those.