What's the best free, cross-platform password manager?

No question, 1Password is the BEST password manager. It works across multiple platforms (iOS, OSX, PC, most web browsers have extensions for it) and it's filters/features elevate from being a "helpful list of passwords" to a "can't live without this tool". You can sort your passwords by websites with recent security risks, weak password strength, etc. or you can have it help you create super-secure passwords for you!

I love 1Password so much. I used it for free at my old job and ended up buying it for myself. Definitely worth it but be sure to use the "tags" feature when you start out so it's easy to find passwords for different purposes.

I tried a few PW managers before I settled on 1Password. I really like it. iPhone integration is mediocre IMO, but you can cut and paste PWs fairly easily. There's also plenty of room for improvement (e.g. periodic and automatic cycling of PWs would be amazing), but I've been using it for over a year with great success.

I think LastPass is a good option. All password managers have had some issues, but if you enable two-factor authentication it works pretty well. As of last year sync across devices is free, so that solves that.

I've tried 1Password and LastPass and I don't like them because they favored one platform too much or made me pay to have real functionality. Avast Passwords has been so useful to me because it's platform agnostic, completely free, and I trust Avast more than most tech companies.

Dashlane is a great password manager to try out.

I like Dashlane. It has a great iOS Safari extension, works great on all my browser on my computer (through extensions), and does a good job of synchronizing everything. It's also nice to have the auto-changing password feature, on some website it can automatically change the password for you (better security to update passwords every once in a while). Edit: love storing personal information and secure notes. All my cards are on there for easy payment as well.