Developer Tools
Format, validate and convert data the way developers actually need to — JSON tools, Base64 and URL encoding, hash generators and a regex tester.
Which tool should I use?
- Debugging an API response?
- Use JSON Formatter to pretty-print and validate the JSON.
- Need a secure random password?
- Use Password Generator to create one instantly.
Popular
Password Generator
Create a strong, random password instantly
Developer Tools
PopularJSON Formatter
Pretty-print, validate and minify JSON instantly
Developer Tools
Base64 Encoder/Decoder
Encode text to Base64 or decode it back instantly
Developer Tools
URL Encoder/Decoder
Encode or decode URL-safe text instantly
Developer Tools
UUID Generator
Generate random UUID v4 identifiers instantly
Developer Tools
Hash Generator
Generate a SHA-1, SHA-256, SHA-384 or SHA-512 hash instantly
Developer Tools
Color Converter
Convert colors between HEX, RGB and HSL instantly
Developer Tools
Timestamp Converter
Convert between Unix timestamps and human-readable dates
Developer Tools
CSV to JSON Converter
Convert CSV data into a JSON array of objects
Developer Tools
JSON to CSV Converter
Convert a JSON array of objects into CSV, with nested fields flattened
Developer Tools
JSON to TypeScript Converter
Generate TypeScript interfaces from a JSON sample
Developer Tools
Number Base Converter
Convert a number between binary, octal, decimal and hex
Developer Tools
Roman Numeral Converter
Convert between numbers and Roman numerals instantly
Developer Tools
Tracking URL Cleaner
Strip UTM and other tracking parameters from a URL
Developer Tools
XML to JSON
Convert XML into formatted, ready-to-use JSON
Developer Tools
CSS Grid & Flexbox Generator
Visually build CSS Grid and Flexbox layouts and copy the code
Developer Tools
CSS Box-Shadow Generator
Design a box-shadow visually and copy the CSS
Developer Tools
Cronjob Generator
Build and understand cron expressions with presets and a live description
Developer Tools
PopularRegEx Tester
Test regular expressions against a string with live match highlighting
Developer Tools
HTML Entities Converter
Encode text to HTML entities or decode entities back to text
Developer Tools
GPS Coordinate Converter
Convert GPS coordinates between decimal degrees and DMS/DDM
Developer Tools
CSV Viewer
View a CSV file as a clean, searchable table
Developer Tools
JWT Decoder
Decode a JWT's header and payload instantly
Developer Tools
SQL Formatter
Format and beautify SQL queries for any major dialect
Developer Tools
CSS Gradient Generator
Design linear, radial and conic gradients visually
Developer Tools
Markdown Editor
Write Markdown with a live side-by-side preview
Developer Tools
Keyboard Tester
Test every key and see key codes in real time
Developer Tools
NewYAML ↔ JSON Converter
Convert between YAML and JSON in both directions
Developer Tools
NewColor Contrast Checker
Check WCAG contrast ratios for text and background colors
Developer Tools