Developer Tools
28 tools available
JSON Formatter/Validator
Format, validate and beautify JSON data
JWT Decoder
Decode and inspect JSON Web Tokens with claim explanations
Base Converter
Convert numbers between binary, octal, decimal, hex
Chmod Calculator
Calculate Linux file permissions in octal and symbolic
HTML Minifier
Minify HTML code by removing comments and whitespace
htaccess Generator
Generate Apache .htaccess files for redirects and security
JSON Tree Viewer
Professional JSON tree visualization and editing tool
CSS Minifier
Minify and compress CSS code
JavaScript Minifier
Minify and compress JavaScript code
Regex Tester
Test and validate regular expressions
Code Beautifier
Format and beautify HTML, CSS, JavaScript code
API Response Formatter
Format and beautify API responses
SQL Query Builder
Build SQL queries visually
Cron Job Generator
Generate cron expressions for scheduled tasks
Git Commands Helper
Interactive Git command generator and reference guide
Code Diff Checker
Compare code differences with syntax highlighting
JavaScript KeyCode Finder
Press any key to get its keyCode, key, code, and which values
CSS Unit Converter
Convert between px, rem, em, vw, vh, and other CSS units
CSS Specificity Calculator
Calculate and compare CSS selector specificity scores
Subnet Calculator
Calculate IPv4 subnets, network ranges, and CIDR notation
Markdown Editor
Write and preview Markdown with live rendering and toolbar
License Generator
Generate open source license files for your projects
.gitignore Generator
Generate .gitignore files for any language, framework, or IDE
Nginx Config Generator
Generate Nginx server configuration files visually
Docker Compose Generator
Build docker-compose.yml files with a visual editor
JSON to TypeScript
Convert JSON objects to TypeScript interfaces and types
JSON Schema Generator
Generate JSON Schema from JSON data automatically
Text Encryption
Encrypt and decrypt text using AES-256 encryption
About Developer Tools
Essential free online tools for developers and programmers to enhance coding productivity. Code formatters, validators, generators, minifiers, and debugging utilities that work directly in your browser. Perfect for web developers, software engineers, and coding enthusiasts. From JSON formatters to code beautifiers, regex testers to API tools, all utilities are free and require no software installation.