Verdict: Partly
Partly. KeePass itself does run on Linux through a compatibility layer, and most distributions package it. Most people switch to KeePassXC instead, which opens the same database file and feels native.
KeePass 2 is written for Windows but runs on Linux through Mono, a compatibility layer, and the project documents that officially. Debian and Ubuntu ship it as keepass2, and Fedora, openSUSE, Arch and Gentoo all package it too, so it installs from your app store.
It works, with rough edges. The window is the Windows one drawn through a translation layer, so it looks out of place next to the rest of your desktop. Auto-type, the feature that types your username and password into a login box for you, needs extra setup on Wayland, which is the display system Ubuntu and Fedora now use by default. Some setups also need extra font packages before things render properly.
KeePassXC is the reason most people do not bother. It reads and writes the same .kdbx database files, so your existing file opens with no conversion and no export step, and it is a native Linux app that looks and behaves like everything else on the system. Browser filling works through an extension.
Your database is just a file. Copy it across on a USB stick, open it in either app with the same master password, and everything is there. Keep a copy of the file somewhere safe before you wipe the Windows machine, because if you lose it and the password there is no way to recover what was inside.
Opens the same database file with the same master password. Native, modern and actively developed, and the usual choice on Linux.
Your files: Reads and writes the same .kdbx files, so your existing database opens without conversion.
If you are tired of syncing a file between devices. It does that for you, with a free tier, at the cost of your passwords living on a server.
Last checked . Sources:
