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Perminator

Permission denied, explained.

Build POSIX modes or audit a folder to see why filesystem access is allowed, blocked, or uncertain.

Perminator Permission Audit showing a folder tree, permission concerns, modes, owners, and groups.

Perminator helps you understand file permissions without touching the files themselves. Build and copy a POSIX mode, or audit a folder to see ownership, ACLs, flags, concerns, and every authorization gate.

What it does

Build a mode without mental arithmetic

Toggle permissions and special bits, enter octal directly, and copy the result from a compact Scratch window.

Audit the whole selected tree

See permissions, ownership, direct concerns, and affected descendants across a folder hierarchy you choose.

Follow every access gate

Trace traversal and the requested operation through POSIX rules, ACLs, sticky directories, flags, links, and mount state.

Preview, then decide

Compare a proposed chmod mode with the captured snapshot and copy a reviewable command. Perminator never runs it.

Found a sharp edge? Tell the person who made it.

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