Browser calculators

Free Online Calculators

Calculate aspect ratios, dimensions, days between dates, and dates before or after a chosen day.

Choose a tool

Images · Video · DisplaysAspect Ratio CalculatorCalculate ratios, image dimensions, screen resolutions, and adjustment suggestions.Dates · Days · HolidaysDate CalculatorCalculate days between dates or add and subtract days from a date.

How file and data processing works

Many ToolsLab utilities process files or text directly in your browser. Features that use a server, including temporary QR file sharing and public Web page import, explain that behavior before you continue.

Free Online PDF ToolsMerge, split, rotate, delete, reorder, or visually extract PDF pages with focused browser tools.Free Online Image ToolsConvert JPG, PNG, and WebP images to PDF, or turn selected PDF pages into downloadable images.Developer and Text ToolsFormat JSON, encode or decode Base64, generate UUID v4 values, and create SHA hashes in your browser.Online Design and Creator ToolsCreate editable word clouds, custom QR codes, and browser-based teleprompter sessions for creative work.