Read = 4, Write = 2, Execute = 1. Add them per group; e.g., rwx = 7, r-x = 5. 755 means owner rwx, group and others r-x.
📖 What is Chmod Calculator?
Chmod Calculator is a free online tool that helps you convert unix file permissions between checkboxes, octal (755), and symbolic (rwxr-xr-x) notation. No signup, no downloads — everything runs securely in your browser.
👤 Who Is It For?
For: Developers, DevOps engineers, security pros. Not for: Enterprise batch processing or offline use.
📋 How to Use
Enter your input.
Click the action button.
Copy or download the result.
💡 Common Use Cases
Convert Unix file permissions between checkboxes, octal (755), and symbolic (rwxr-xr-x) notation
Quick Chmod Calculator tasks during daily work
Encoders workflows without installing software
⚠️ Limitations
Browser-based — all processing is client-side. Large payloads may be slow.
📌 Key Facts
Chmod Calculator is a free tool for developers.
All processing runs in your browser — no data is uploaded to any server.
No signup required for core functionality.
Part of the ToolPile collection of 40+ free tools.