Developer Tools
Free browser-based tools for JSON, XML, YAML, SQL, CSV, Markdown and more.
JSON Formatter
Beautify and format JSON online, instantly
JSON Validator
Validate JSON syntax and find errors instantly
JSON Minifier
Minify and compress JSON to reduce size
XML Formatter
Format and prettify XML code online
XML to JSON
Convert XML to JSON format online
JSON to XML
Convert JSON to XML format online
YAML Formatter
Format and validate YAML online
JSON to YAML
Convert JSON to YAML format online
CSV Viewer
View and format CSV files in a table
JSON to CSV
Convert JSON to CSV format online
SQL Formatter
Format and beautify SQL queries online
Markdown Preview
Preview Markdown with live rendering
Base64 Encoder / Decoder
Encode and decode Base64 strings online
URL Encoder / Decoder
Encode and decode URLs and query strings online
HTML Encoder / Decoder
Encode and decode HTML entities online
JWT Decoder
Decode and inspect JWT tokens without a secret
Regex Tester
Test and debug regular expressions with live match highlighting
UUID Generator
Generate random UUIDs / GUIDs instantly online
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512 hashes online
Cron Expression Builder
Build and validate cron expressions with a visual editor
Timestamp Converter
Convert Unix timestamps to dates and vice versa
Color Picker / Converter
Convert colors between HEX, RGB, HSL, and HSB
Diff Checker
Compare two text blocks and see differences highlighted
Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal
JSON Schema Validator
Validate JSON against a JSON Schema definition
HTML Preview
Preview raw HTML code in a live sandbox