Chmod Calculator: guide & how to use

Toggle read/write/execute for owner, group, and others; see octal (e.g. 755) and symbolic (rwxr-xr-x). Type octal to sync the grid. This guide is part of our guides library in the Developer tools category—Regex, JWT, cron, hashing, HTML entities, SQL formatting, permissions, HTTP reference, and JSONPath—browser-only.

What this tool does

Chmod Calculator — Convert Unix permissions between numeric and symbolic. It fits alongside other utilities on AI Tool Hub so you can solve small problems quickly without installing desktop software.

When it helps

Reach for this tool when your work overlaps with topics like: chmod, permissions, unix, octal, rwx. Teams use these utilities for ad hoc checks during development, studying, content drafting, and light business calculations—always double-check critical numbers against your own policies or professionals when stakes are high.

How to use it

1. Open the tool using the button below.
2. Enter or paste your input in the workspace.
3. Review the output and copy or export it for your project.

Common questions

Are sticky bits supported?

This tool focuses on the nine standard rwx bits; setuid/sticky are not shown.

Related tools

Pair this workflow with other utilities on the site:

• HTTP Status Codes

  Searchable reference for standard HTTP status codes.
• Number Base Converter

  Convert between binary, octal, decimal, and hexadecimal.
• Regex Tester

  Test JavaScript regex with flags and highlight matches.

Privacy

Like most utilities in this category, Chmod Calculator runs locally in your browser after the page loads—your content is not sent to our servers for processing.