Developer
Format, validate, inspect, and run code. Utilities for engineers: formatters, decoders, generators, compilers, and inspectors.
16 tools
JSON Formatter
Format, validate, and minify JSON.
QR Code Generator
Generate customizable QR codes.
Base64 Encoder
Encode and decode Base64.
HTML Viewer
Preview HTML in a sandboxed iframe.
Regex Tester
Test regular expressions live.
JWT Decoder
Inspect JSON Web Tokens.
Color Converter
Convert between color spaces.
Hash Generator
SHA-1, SHA-256, SHA-384, SHA-512.
UUID Generator
Generate UUIDs at scale.
CSV ⇄ JSON
Convert between CSV and JSON.
Diff Viewer
Compare two text documents.
Case Converter
Transform text between cases.
LaTeX to PDF
Compile LaTeX documents to PDF.
SVG Optimizer
Minify and optimize SVG files.
CSS Specificity Calculator
Calculate CSS selector specificity.
JSON Validator & Viewer
Validate JSON and inspect it in a tree view.