Dev Helpers - Free Online Tools

Calculate Unix file permissions with visual checkboxes

Convert docker run commands to docker-compose.yml format

Press any key to get its keycode, key, code, and location

Search and browse common MIME types and file extensions

Quick reference for common Git commands and workflows

Validate Turkish national ID numbers (TC Kimlik No) with algorithm check

Validate International Bank Account Numbers (IBAN) with country detection

Validate credit card numbers using the Luhn algorithm with card type detection

Validate email addresses with RFC compliance and disposable email detection

Complete ASCII character table with decimal, hex, octal, and binary values