Browse our complete collection of free developer utilities.
15 tools
21 tools
20 tools
19 tools
30 tools
12 tools
Decode and verify JSON Web Tokens (JWT) with ease
Encode and decode Base64 strings and images
Format, validate, and beautify JSON data
Encode and decode URL strings
Encode and decode HTML entities
Parse URLs into their constituent parts
Convert text to Hex and vice versa
Convert text to Binary and vice versa
Encode and decode Base32 strings
Encode and decode Base58 strings
Convert text to ASCII codes
Convert text to Unicode escape sequences
Convert Unicode to Punycode (IDN)
Encrypt/decrypt using ROT13 substitution
Translate text to Morse code and back
Encode/decode Quoted-Printable strings
Generate URL-friendly slugs from strings
Escape strings for use in SQL queries
Encode and decode XML special characters
Test and debug regular expressions
Convert Unix timestamps to human-readable dates
Convert text to uppercase, lowercase, title case, camelCase, snake_case
Count words, characters, sentences, paragraphs with reading time
Compare two text blocks and highlight differences line by line
Find and replace text with regex support and preview
Sort lines alphabetically, numerically, or by length
Remove duplicate lines and keep only unique text
Encode and decode HTML entities and special characters
Write and preview Markdown with live rendering
Remove extra spaces, line breaks, and whitespace from text
Extract all email addresses from text automatically
Extract and list all URLs from text content
Reverse text, words, or letters with various options
Format, validate, and beautify CSV data online
Analyze text statistics, readability scores, and word frequency
Split text by delimiter, character count, or line count
Generate UUIDs (v4) for your applications
Generate MD5, SHA-1, SHA-256 hashes
Generate strong, secure random passwords with customizable options
Analyze password strength with entropy calculation and security tips
Generate Time-based One-Time Passwords for two-factor authentication
Generate and verify bcrypt password hashes with configurable rounds
Generate Argon2 hashes - modern password hashing standard
Encrypt and decrypt text using AES-256-GCM encryption
Generate RSA public/private key pairs online
Encrypt and decrypt messages using PGP/OpenPGP
Simple password-based text encryption and decryption
Decode and view SSL/TLS certificate details
Generate Certificate Signing Requests online
Generate SSH key pairs (RSA, ED25519) online
Calculate SSH key fingerprints (MD5, SHA-256)
Analyze and validate HTTP security headers
List common subdomains for security testing
Test strings for SQL injection vulnerabilities
Generate XSS test payloads for security testing
Test and validate CORS configurations
Scan text for exposed API keys and secrets
Calculate MD5, SHA-1, SHA-256, SHA-512 file hashes
Generate HMAC signatures for API authentication
Verify file integrity using checksums
Generate cryptographically secure random tokens
Generate cryptographic nonces for security protocols
Analyze IP addresses - IPv4/IPv6 type and details
Calculate IP ranges from CIDR notation
Common network ports reference and information
Convert between HEX, RGB, HSL color formats
Generate placeholder text for your designs
Create beautiful CSS gradients with live preview
Generate harmonious color palettes and schemes
Generate CSS box-shadow with visual preview
Generate favicons in multiple sizes from images
Convert images to base64 data URI strings
Minify and optimize CSS code for production
Visual CSS Flexbox layout generator
Create custom border radius for CSS elements
Convert SVG to data URI for inline CSS/HTML
Generate CSS triangles using border tricks
Convert JSON to YAML format
Convert YAML to JSON format
Convert JSON to XML format
Convert XML to JSON format
Convert YAML to XML format
Convert XML to YAML format
Validate JSON syntax and structure
Validate YAML syntax and structure
Validate XML syntax and structure
Minify JSON by removing whitespace
Compare two JSON objects and show differences
Test JSONPath expressions on JSON data
Validate JSON against a JSON Schema
Format and beautify YAML files
Format and beautify XML files
Convert JSON arrays to CSV format
Convert CSV to JSON format
Convert JSON to TOML format
Convert TOML to JSON format
Advanced XML formatting with options
Generate signed JWT tokens with custom payload
Generate auth URLs and PKCE challenges
Generate HMAC signatures for API requests
Encode and decode Basic Authentication credentials
Generate secure random API keys
Build and preview HTTP requests visually
Convert cURL commands to HTTP request details
Convert HTTP request details to cURL commands
Extract requests from Postman collections
Format and beautify HTTP request/response logs
Generate dummy JSON payloads from templates
Format and validate GraphQL queries
Build webhook payloads for common services
Generate realistic mock API data
Detailed reference for HTTP status codes
Compare two API JSON responses
Visualize and calculate rate limit windows
Build standardized API error responses
Validate OpenAPI/Swagger schema structure
Generate markdown documentation from requests