Is Chmod Calculator free to use?
Yes. Chmod Calculator is available through MyDevTools with a public landing page and browser-based app experience.
Converts Unix/Linux file permissions between a checkbox grid, octal notation (e.g. 755, 4755), and symbolic notation (e.g. rwxr-xr-x), with support for setuid, setgid, and sticky bits, a ready-to-copy chmod command, plain-English explanations, and common presets. Runs entirely in the browser.
Convert Unix file permissions between checkbox, octal (755), and symbolic (rwxr-xr-x) forms, including setuid, setgid, and sticky bits. Runs in the browser. Runs entirely in your browser — no installation, no account required to try it.
Use Chmod Calculator when you need a fast, browser-based way to work with chmod calculator. It is useful during API debugging, code reviews, documentation cleanup, test data preparation, and quick checks on a new machine where you do not want to install a desktop app. Because MyDevTools keeps related utilities together, you can move from Chmod Calculator into nearby tools like formatters, converters, generators, encoders, decoders, and API helpers without leaving the same toolkit.
A typical workflow starts by pasting or typing your input into Chmod Calculator. Review the result, copy the cleaned or generated output, then continue with a related task such as validating a payload, decoding a token, parsing a URL, generating an identifier, or testing an API request. This makes Chmod Calculator part of a practical developer workflow instead of a one-off utility page.
Yes. Chmod Calculator is available through MyDevTools with a public landing page and browser-based app experience.
No. Chmod Calculator runs in a web browser, so you can open it from any modern device without installing a desktop utility.
Converts Unix/Linux file permissions between a checkbox grid, octal notation (e.g. 755, 4755), and symbolic notation (e.g. rwxr-xr-x), with support for setuid, setgid, and sticky bits, a ready-to-copy chmod command, plain-English explanations, and common presets. Runs entirely in the browser.
Most developers pair Chmod Calculator with related MyDevTools utilities such as formatters, parsers, encoders, generators, API tools, and security helpers.
Click "Use Chmod Calculator Free" above — no download or account required.
Paste or type your input directly in the browser. Processing happens locally on your device.
Get your output instantly. Copy it, download it, or keep working in the same tab.