Chmod Calculator
Click checkboxes to build Unix file permissions or type an octal value directly.
Result
- 100% free — no account needed
- Runs in your browser
- Nothing is uploaded
Frequently asked questions
Is Chmod Calculator really free?
Yes. Chmod Calculator is completely free on PureBrowser — every feature, with no account, no trial, and no credit card.
Does Chmod Calculator upload my data?
No. Chmod Calculator runs entirely inside your browser, so anything you type, paste, or open stays on your own device.
Do I need to sign up or install anything?
Neither. There is no account and nothing to download — open the page and Chmod Calculator is ready to use on desktop or mobile.
Does Chmod Calculator work offline?
Once the page has loaded, yes. All of the processing happens locally in your browser, so it keeps working without a connection.
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