Developer
No clutter. No signup. Just results.
JSON Formatter
Format & validate JSON
Timestamp Converter
Convert Unix timestamps
HTML Encode / Decode
Encode & decode HTML entities
Number Base Converter
Convert between binary, octal, decimal & hex
JWT Decoder
Decode & inspect JWT tokens
Regex Tester
Test regular expressions with live match highlighting
Crontab Generator
Build cron expressions with human-readable preview
chmod Calculator
Convert chmod numeric and symbolic permissions
IPv4 Subnet Calculator
Calculate subnet, hosts, CIDR and binary details
SQL Formatter
Format and beautify SQL queries instantly
HMAC Generator
Generate HMAC-SHA1, SHA256, SHA512 online
Token Generator
Generate secure random tokens online
URL Parser
Parse and edit URLs online
XML Formatter
Format and minify XML online
JSON to TypeScript
Generate TypeScript interfaces from JSON
HTTP Status Codes
Reference for all HTTP status codes
MIME Types Reference
Search file extensions and MIME types
JSON Minifier
Minify JSON and reduce payload size
HTML Minifier
Minify HTML and remove unnecessary bytes
CSS Minifier
Compress CSS for faster page loads
cURL to Fetch
Convert cURL commands to JavaScript fetch
SQL Minifier
Compress SQL queries to one line
User-Agent Parser
Parse browser, OS, device from UA string
HTTP Headers Parser
Parse raw HTTP headers into structured JSON
JSON Schema Validator
Validate JSON data against JSON Schema
JSON Diff
Compare two JSON objects with path-level changes
Query String Parser
Convert query strings and JSON objects both ways
UTM Builder
Build tracked URLs with UTM parameters
Meta Tag Generator
Generate SEO and Open Graph meta tags
Robots.txt Generator
Generate robots.txt rules for crawlers
Sitemap Generator
Generate sitemap.xml from URL lists
SemVer Tools
Compare versions and suggest bumps
CSP Generator
Generate Content Security Policy headers
Regex Replacer
Find and replace text using regular expressions
HTTP Header Generator
Generate HTTP request header blocks
Redirect Rule Generator
Generate Nginx and Apache redirect rules
Gitignore Generator
Generate .gitignore from common templates
Email Header Parser
Parse raw email headers into structured fields
Changelog Generator
Generate structured changelog entries
FAQ Schema Generator
Generate FAQPage JSON-LD structured data
Breadcrumb Schema Generator
Create BreadcrumbList JSON-LD markup
Organization Schema Generator
Generate Organization JSON-LD markup
Hreflang Generator
Generate hreflang alternate link tags
Meta Robots Generator
Generate robots meta tag directives
UUID Validator
Validate UUID format and version
Email Validator
Validate email address format
SRI Hash Generator
Generate SHA256/384/512 integrity hashes
IBAN Validator
Validate IBAN account numbers
Credit Card Validator
Validate card number with Luhn check
Regex Escape
Escape and unescape regex special chars
JSON Key Extractor
Extract key paths from JSON
URL Canonicalizer
Normalize URLs and remove tracking params
CSS Specificity Calculator
Calculate selector specificity score
JSON Sorter
Sort JSON keys recursively