Developer Tools
Free online tools for developers. All tools work locally in your browser β no data is sent to the server.
Security & Encoding
Tools for working with passwords, tokens, encoding and hashing
Password Generator
Generate secure passwords with customizable length and character sets
JWT Tools
Coming SoonDecode, validate and generate JSON Web Tokens
Base64 Encoder/Decoder
Encode and decode text and files to Base64
Hash Generator
Coming SoonGenerate MD5, SHA and bcrypt hashes from text or files
URL Encoder/Decoder
Coming SoonEncode and decode URLs and query parameters
Generators & Utilities
UUID, QR code, text generators and other useful utilities
UUID Generator
Generate and validate UUID (v4) with bulk creation support
QR Code Generator
Create QR codes for URLs, text, Wi-Fi, contacts with color and size customization
Lorem Ipsum Generator
Generate placeholder text for layouts and designs
CRON Expression Parser
Coming SoonParse and validate CRON expressions with human-readable output
Converters & Formatters
Convert and format data between different formats
Testing & Analysis
Tools for testing, validation and code analysis
RegEx Tester
Coming SoonTest regular expressions with match highlighting
Diff Checker
Coming SoonCompare text files with syntax highlighting
Markdown Preview
Live preview and convert Markdown to HTML
Network Tools
DNS lookup, IP information and other network utilities
Subnet Calculator
Coming SoonCalculate IPv4/IPv6 subnets, CIDR notation and network ranges
IP Lookup
Get detailed information about IP address: geolocation, provider, ASN
DNS Lookup
Check domain DNS records: A, AAAA, MX, TXT, CNAME, NS, SOA
Graphics & Design
Color tools, gradients, image optimization and SVG processing
Color Converter
Coming SoonConvert between HEX, RGB, HSL and RGBA formats
CSS Gradient Generator
Coming SoonVisual CSS gradient builder (linear, radial, conic)
Image Compressor
Coming SoonCompress PNG/JPG/WebP images with quality adjustment
Image Format Converter
Coming SoonConvert images between PNG, JPG, WebP and AVIF formats
SVG Icon Optimizer
Coming SoonOptimize and minify SVG files with metadata removal
Contrast Checker
Coming SoonCheck color contrast and WCAG AA/AAA compliance