[pwg]

This one works from local files (no native cloud storage): https://www.pwsafe.org/

If the local directory it uses is mapped (via appropriate means) to one of the above cloud providers (i.e., a "dropbox" style mapping) then the local encrypted file is also stored "in the cloud".

Note also you could simply setup "backup into cloud" of the local file and achieve a similar result.

Here you will find a long list of compatible other variants: https://www.pwsafe.org/relatedprojects.shtml some of which are for multi-platform and/or multi-device support.