-
GpgFrontend
A free, open-source, robust yet user-friendly, compact and cross-platform tool for OpenPGP encryption. It stands out as an exceptional GUI frontend for the modern GnuPG (gpg).
-
WorkOS
The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
Cryptomator, perhaps? it supports local storage https://cryptomator.org/
You can use GPG on every platform. On android, there is OpenKeyChain and on Windows you can use something like this. GPG keys can also be used to sign stuff. You can upload them to key-servers and sign files and emails with it.
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.