Convert between octal (e.g. 755) and symbolic (rwxr-xr-x) file permission notation, in your browser.
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Tell us what you think about Convert Unix file permissions.
| Read | Write | Execute | |
|---|---|---|---|
| Owner | |||
| Group | |||
| Other |
- Runs entirely in your browser — nothing is sent to a server
- Converts between octal (755) and symbolic (rwxr-xr-x) notation
- Free, no account required
How it works
-
1
Paste the string, expression, or value you want to inspect.
-
2
It's parsed instantly and broken down on screen.
-
3
Review the details or matches highlighted for you.
-
4
Copy any part of the result you need.
Why use this tool
Every dev utility, one place
Format, convert, encode, decode, and generate — no more juggling ten tabs.
100% private, always
Every tool runs in your browser — your code and data are never sent anywhere.
Works on any device
Runs on Windows, Mac, Linux, iOS, and Android — nothing to install.
Instant results
No queues, no build step — results update as you type.
Built to handle real data
Full Unicode support and RFC-compliant parsing, edge cases included.
Free, always
Free to use, with no rate limits, sign-up, or trial period.
Frequently asked questions
They are octal values summing the read (4), write (2), and execute (1) permissions for specific user classes.
This interface focuses on standard three-digit permissions rather than complex four-digit special modes.
Generally, files should be 644 (read/write for owner, read for others) and directories 755.
It grants every user on the system the ability to overwrite or execute the file, which is highly dangerous on shared servers.
No, it simply provides the numeric or symbolic string for you to copy into your own terminal.
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