Developer tools for JSON, regex, base64, timestamps, and more. Boost your productivity.
30 tools available
Our developer tools are built by developers, for developers. Each tool is designed to solve real-world problems encountered during software development. Whether you're debugging API responses, testing regular expressions, or converting data formats, these tools help you work faster and more efficiently. Each tool is clearly labeled so you can see whether it runs in your browser or uses SpeedyTools servers.
Format, validate, and beautify JSON data
Convert JavaScript object literals to valid JSON
Merge two JSON objects with deep or shallow strategies
Test regex patterns with real-time highlighting
Encode and decode Base64 strings and files
Convert between Unix timestamps and human dates
Compare text and find differences
Real-time code editing for pair programming and interviews
Generate all favicon sizes for browsers, SEO, and PWA
Create beautiful code screenshots with syntax highlighting
Preview shadcn/ui components with your custom CSS theme
Decode and inspect JSON Web Tokens
Generate random UUID v4 identifiers
Convert JSON arrays to CSV format
Encode and decode URLs and query strings
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes
Convert between YAML and JSON formats
Convert colors between HEX, RGB, and HSL formats
Build and explain cron expressions visually
Format and beautify SQL queries
Generate QR codes for URLs, WiFi, and contacts
Generate fake data for testing and development
Generate JSON Schema from JSON objects
Generate professional README.md files
Create beautiful CSS gradients with linear and radial options
Convert JSON to TypeScript interfaces instantly
Convert cURL commands to JavaScript, Python, Go, and PHP
Format and minify HTML code instantly
Generate time-ordered UUID v7 identifiers
View, edit, and export Mermaid diagrams to PNG and SVG