Developer Tools
Free, fast, browser-based tools. No sign-up required.
JSON Formatter & Beautifier
Format, beautify, and minify JSON data with customizable indentation.
Open tool →JSON Validator
Validate JSON syntax and get detailed error messages with line numbers.
Open tool →JSON to YAML Converter
Convert JSON data to YAML format instantly.
Open tool →JSON Schema Validator
Validate JSON data against JSON Schema with detailed error reporting.
Open tool →YAML Validator
Validate YAML syntax and convert between YAML and JSON formats.
Open tool →CSV to JSON Converter
Convert CSV data to JSON format with automatic delimiter detection.
Open tool →JSON Path Finder
Query JSON data using JSONPath expressions with real-time results.
Open tool →Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 back to plain text.
Open tool →URL Encoder / Decoder
Encode or decode URL components for safe transmission.
Open tool →HTML Entity Encoder & Decoder
Encode and decode HTML entities for safe web content.
Open tool →Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal bases.
Open tool →UUID Generator
Generate random UUIDs (v4) or time-based UUIDs (v1).
Open tool →Lorem Ipsum Generator
Generate placeholder text for designs and mockups.
Open tool →Password Generator
Generate strong, random passwords with customizable length and character options
Open tool →QR Code Generator
Generate QR codes from text, URLs, or any data. Download as SVG or PNG.
Open tool →Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512 hashes from text.
Open tool →JWT Decoder & Validator
Decode, inspect, and validate JSON Web Tokens instantly.
Open tool →Regex Tester
Test regular expressions with real-time matching and highlighting.
Open tool →Diff Checker
Compare two texts and see differences highlighted line by line.
Open tool →Markdown Preview
Write Markdown and see real-time rendered preview side by side.
Open tool →String Case Converter
Convert text between camelCase, PascalCase, snake_case, kebab-case, and more.
Open tool →SQL Formatter
Format and beautify SQL queries with dialect-specific formatting.
Open tool →Color Converter
Convert colors between HEX, RGB, and HSL formats instantly.
Open tool →CSS Minifier
Minify CSS code to reduce file size and improve load times.
Open tool →CSS Formatter & Beautifier
Format and beautify minified CSS with customizable indentation.
Open tool →Cron Expression Builder
Build, test, and understand cron expressions with a visual editor.
Open tool →Timestamp Converter
Convert Unix timestamps to human-readable dates and vice versa.
Open tool →