Is Facebook showing the wrong thumbnail for your WordPress links? Learn how to fix incorrect Facebook share images by managing Open Graph tags and clearing cache. Step-by-step guide included.

Free online file hash calculator. Compute MD5, SHA-1, SHA-256, SHA-384, and SHA-512 checksums directly in your browser. No uploads, no dependencies, 100% client-side.

Free online temperature converter tool. Instantly convert between Celsius, Fahrenheit, and Kelvin units. No installation required, works on all devices.

Convert inches, feet, yards, miles to meters, cm, mm. Imperial to metric conversion.

Generate random valid port numbers for testing. Filter by well-known, registered, or dynamic ranges. Exclude common ports.

Format and beautify SQL queries with proper indentation. Supports SELECT, JOIN, WHERE clauses and more.