Developer Tools
Handy browser-based tools for everyday development
Generators
QR Code Generator
Generate QR codes from text or URLs
WiFi QR Generator
Generate QR codes for WiFi connection
UUID Generator
Generate UUID v4 with one click
Password Generator
Generate secure random passwords
Cron Expression Generator
Build and validate cron expressions visually
Lorem Ipsum Generator
Generate Lorem Ipsum dummy text
Test Data Generator
Generate dummy names, emails, addresses and more in JSON/CSV
Placeholder Image Generator
Generate dummy images with custom size, color, and text in SVG/PNG
Crypto / Security
Hash Generator
Generate MD5, SHA-1, SHA-256 and other hashes
Password Hash Generator
Generate and verify PBKDF2 password hashes
JWT Decoder
Decode and inspect JSON Web Tokens
PEM / Certificate Decoder
Decode PEM certificates and display their information
AES Encrypt / Decrypt
Encrypt and decrypt text with AES-GCM/CBC (browser-only)
Converters
Color Code Converter
Convert between HEX, RGB, and HSL
JSON Formatter
Format, minify, and validate JSON
Base64 Encode / Decode
Encode and decode Base64 strings
URL Encode / Decode
Percent-encode and decode URLs
Unix Timestamp Converter
Convert between Unix timestamps and dates
YAML / JSON Converter
Convert between YAML and JSON
CSV / JSON Converter
Convert between CSV and JSON
Markdown Preview
Preview Markdown in real time
SQL Formatter
Format and minify SQL queries
Number Base Converter
Convert numbers between binary, octal, decimal, hex, and any base
Data Size Converter
Convert between bytes, KB, MB, GB, TB and more (SI/IEC)
XML Formatter
Format, minify, and validate XML data
cURL to Code Converter
Convert cURL commands to Python, JavaScript, Go, PHP, Ruby and more
JSON to TypeScript Converter
Auto-generate TypeScript type definitions from JSON data
CSS/JS Minifier
Minify and beautify CSS and JavaScript code
Image
Image Compressor
Compress, resize, and convert images
Image Cropper
Crop and trim images freely
Image Resizer
Resize images to any dimension
Image Converter
Convert between JPEG, PNG, and WebP
Image Metadata Viewer
View image metadata and properties
Image to Base64
Convert images to Base64 strings
Image Rotate / Flip
Rotate and flip images
OG Image Generator
Create OGP images for social media sharing
Favicon Generator
Generate favicons from text or emoji
Geodata
Network
Global IP Checker
Display your current global IP address and details
HTTP Header Checker
Inspect HTTP response headers for any URL
Redirect Checker
Trace URL redirect chains and display each step
robots.txt Checker
Fetch and parse a site's robots.txt
Subnet Calculator
Calculate subnet info from CIDR notation (IPv4/IPv6)
DNS Lookup
Look up DNS records for a domain via DoH
WHOIS Lookup
Look up domain WHOIS information (registrar, expiration, nameservers) via RDAP
SSL Certificate Checker
Check SSL/TLS certificate details (expiration, issuer, SANs) for any domain
Security Headers Checker
Analyze security headers (CSP, HSTS, X-Frame-Options, etc.) and get a security score
Sitemap Viewer
Fetch and visualize sitemap.xml as a tree view or flat list of URLs
OGP Preview
Fetch Open Graph and Twitter Card meta tags from a URL and preview SNS share appearance
Utilities
Text Counter
Count characters, words, and lines in real time
User-Agent Parser
Parse User-Agent strings to display browser and OS info
Text Diff
Compare two texts line by line and highlight differences
Regex Tester
Test and debug regular expressions in real time
Color Palette Generator
Generate harmonious palettes from a base color
Date Calculator
Calculate date differences, add/subtract days, and count business days
Docker Run / Compose Converter
Convert between docker run commands and docker-compose.yml
chmod Calculator
Convert Unix permissions between numeric and symbolic notation
Text Case Converter
Convert between camelCase, snake_case, kebab-case, PascalCase and more
Line Sorter & Deduplicator
Sort lines, remove duplicates, and delete empty lines
Text Statistics
Analyze reading time, word count, sentence count, paragraphs, and byte size