pass-man

A command-line password manager written in Go.

what it does

Stores and retrieves credentials from the terminal, with no daemon and no GUI — the whole thing is one binary you can drop on a machine.

why Go

It's the obvious language for a tool that has to be a single static binary with no runtime to install. Writing it was also how I learned Go properly: a password manager forces you into the parts of the standard library that matter — crypto, file permissions, and handling secrets in memory — rather than the parts a tutorial walks you through.