Calculate image and video dimensions while preserving the aspect ratio.
Presets
Change any value — the others are recalculated keeping the ratio.
Enter the original width/height to see the ratio (16:9, 4:3, 1:1, etc.); type a new width or height and the other is calculated automatically, keeping the ratio. Handy presets included.
Text Case Converter
Convert text between uppercase, lowercase, title case, camelCase, snake_case, and more.
📝Word & Character Counter
Count words, characters, sentences, paragraphs, and estimate reading time live.
📐Unit Converter
Convert length, weight, temperature, and volume units instantly.
🌍World Clock
Compare live times across cities worldwide with automatic DST handling.