Powerful encryption tool for EXTREMLY sensitive data

Hello!

Can anyone advice really good encryption tool for Linux Mint? I need to store on device (not cloud, nor flash!) memory some extremely sensitive data (I don’t wanna say with one, but it is sensitive to me, even if others doesn’t consider them sensitive, but I have my reasons). No it is not something illegal. Just some stuff I really need to hide due to political reasons (I am traveling).

So… I heard about cryptomator but it is no-go for me. It is too bloated by useless (in my situation) features, extremely noticeable and I have personal reasons not to trust it, wich I don’t wanna disclose.

The thing is… Can anyone advice me really good encryption tool. For example to create encrypted container directly on Linux?

I am searching for tool that follows this criteria:

  • no proprietary or paid shit
  • completely open source, better if audited
  • works only in Linux (I don’t need other OS)
  • secure (like really secure)
  • have GUI (this is important, as I don’t wanna teach my girlfriend how to use terminal)

I will be super happy if you can help me!

Sure! Here is what fit’s your profile. If you need solid encryption on Linux Mint, VeraCrypt is a great choice. It’s open-source, secure, and has a GUI. It won’t encrypt individual files, but you can create an encrypted container (like a secure vault) to store your files inside. If you need direct file encryption, try gocryptfs or ZuluCrypt.