Developer utilities

Developer and Text Tools

Format JSON, encode or decode Base64, generate UUID v4 values, and create SHA hashes in your browser.

Choose a tool

Text · JSON · DeveloperJSON FormatterFormat, minify, and validate JSON in your browser.Text · Images · Base64Base64 Encoder/DecoderEncode text and images, preview image Base64, and decode text locally.Text · IDs · DeveloperUUID GeneratorGenerate random UUID v4 identifiers in your browser.Text · SHA · HashHash GeneratorCreate SHA hash values from text locally.

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.Online Design and Creator ToolsCreate editable word clouds, custom QR codes, and browser-based teleprompter sessions for creative work.Free Online CalculatorsCalculate aspect ratios, dimensions, days between dates, and dates before or after a chosen day.