Your files stay on your device

# umask calculator

See what a umask does before you set it: the bits it clears, and the file (0666) and directory (0777) modes that come out. A umask can only remove bits, never grant them.
umaskthree digits, or four with the special digit
 Class read write exec

- chmod and umask are different tools: chmod sets bits on an existing path, umask masks bits at creation time: this page is the mask, the chmod calculator is the set.
Nothing in yet

Paste, drop, or type to begin. Everything stays on this device.

0666 & ~umask for files · 0777 & ~umask for directories

## Next door in Config

- [chmod calculator](/config/chmod)
- [docker run → compose](/config/docker)
- [.env editor](/config/env)
[All config tools](/config)

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Canonical HTML: https://nutter.tools/config/umask
Markdown version: https://nutter.tools/config/umask/index.md
Plain-text version: https://nutter.tools/config/umask/index.txt
Agent index: https://nutter.tools/llms.txt