Calculate trigonometric functions, solve triangles and convert between degrees and radians with this easy-to-use calculator.

Compare two texts side by side, detect differences at the character level, and sync scrolling for easy review.

Calculate diameter, circumference, surface area and volume of a sphere from any known parameter. Supports multiple units.

Convert any text to the NATO phonetic alphabet (Alpha, Bravo, Charlie) for clear verbal communication in aviation, military, or customer service.

Create custom animated GIFs with frame-by-frame editing. Add effects, adjust speed, and preview instantly.

A precise online stopwatch with lap time recording. Track time with millisecond accuracy, record splits, and analyze your timing data.

Protect sensitive information by masking with asterisks. Works with phone numbers, IDs, emails and more.

Convert any numeric amount to English words in multiple formats - formal check format, general format, and lowercase. Perfect for financial documents, checks, and invoices.