chmod 644 Explained (rw-r--r--)

644 is the standard mode for regular files. Toggle bits to see how it changes and copy the right command.

Loading Tool...

Help shape chmod 644 Explained (rw-r--r--)

The bug you just noticed will fade in 3 minutes. The feature idea will vanish after your next tab switch. Crazy peps don't suffer silently.

0/1000

Frequently Asked Questions

The owner can read and write; the group and everyone else can only read. Nobody can execute the file.

Most systems use a umask of 022, which turns the default 666 for new files into 644.

No. Use 640 so only a trusted group can read them, or 600 for the owner only.

Run find . -type f -exec chmod 644 {} + so directories keep their execute bit.

chmod 644 Explained — rw-r--r-- File Permissions - Privacy-First, Offline Developer Tool

Global Architecture: This tool runs entirely in your browser using WebAssembly. Unlike server-side alternatives, your data (JWTs, Logs, SQL) never leaves this device. It works offline and handles massive files (1GB+) bounded only by your RAM.