Developer Utilities
Essential coding tools for developers. Format, encode, decode, and generate hashes — all 100% private, running directly in your browser.
JSON Formatter & Validator
Format, validate, and beautify JSON data instantly
JSON to CSV
Convert JSON data to CSV format
JSON to TypeScript
Generate TypeScript interfaces from JSON
JSON Diff
Compare two JSON objects and highlight differences at field level
JSON to SQL Converter
Convert JSON arrays to SQL INSERT statements with CREATE TABLE definition
JSONPath Tester
Test and evaluate JSONPath expressions
YAML Formatter & Validator
Format, validate, and prettify YAML with error details
YAML to JSON
Convert between YAML and JSON formats
TOML ↔ JSON Converter
Convert between TOML and JSON configuration formats
TOML ↔ YAML Converter
Convert between TOML and YAML configuration formats
XML Formatter
Format and validate XML documents
XPath Tester
Test XPath expressions against XML/HTML
GraphQL Formatter
Format and beautify GraphQL queries, mutations, and SDL
SQL Formatter
Format, minify, and beautify SQL queries
SQL to JSON Converter
Parse SQL INSERT statements and convert to JSON array
Base64 Encoder
Encode and decode Base64 text and files
Base32/Base58/Base85 Encoder
Encode and decode Base32, Base58, and Base85 format text
URL Encode/Decode
Encode or decode URL strings with component-only option
URL Parser
Parse and analyze URL components
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512 hashes
Advanced Hash Generator
Generate hashes with SHA3, RIPEMD160, CRC32, xxHash and more
HMAC Generator
Generate HMAC signatures with SHA algorithms
Hex Encoder/Decoder
Encode text to hex or decode hex to text with multiple format options
HTML Encoder
Encode and decode HTML entities
Regex Tester
Test regular expressions with live preview
Regex Cheatsheet
Interactive regex syntax quick reference with examples
Text Diff / Code Diff
Compare two texts and highlight differences (added, removed, modified lines)
Text Escape/Unescape Converter
Escape or unescape text sequences for programming
JavaScript Minifier
Minify JavaScript code by removing whitespace and comments
CSS Minifier
Minify CSS code by removing whitespace and optimizing values
HTML Minifier
Minify HTML by removing whitespace, comments, and optional tags
TypeScript to JavaScript Transpiler
Convert TypeScript/TSX code to JavaScript in the browser
Markdown to HTML
Convert Markdown syntax to HTML
JWT Decoder
Decode JSON Web Tokens to view header and payload
JWT Encoder & Signer
Encode and sign JWT tokens with HMAC algorithms
Bcrypt Hash Generator & Verifier
Generate and verify bcrypt password hashes with adjustable cost factor
Password Strength Analyzer
Analyze password strength using zxcvbn algorithm
AES Encryption / Decryption
Encrypt and decrypt text using AES-256-GCM encryption
RSA Key Pair Generator
Generate RSA public/private key pairs in PEM format
HTTP Request Builder & Tester
Build and test HTTP requests with custom headers, body, and authentication
HTTP Status Codes Reference
Complete HTTP status code reference with descriptions, RFC links, and usage examples
cURL Command Generator
Generate cURL commands from HTTP request parameters
CORS Checker
Check CORS configuration and analyze preflight requests
WebSocket Tester
Test WebSocket connections with message sending and receiving
DNS Lookup
Query DNS records using DNS-over-HTTPS
IP Lookup
Query IP address geolocation, ISP, and ASN information
UUID Generator
Generate random UUIDs and GUIDs
UUID Validator
Validate UUID format and generate random UUIDs
UUID / NanoID / ULID Generator
Generate UUID, NanoID, and ULID unique identifiers
Slug Generator
Generate URL-friendly slugs from text
Number Base Converter
Convert numbers between binary, decimal, hex and other bases
Timestamp Converter
Convert between Unix timestamps and dates
CRC32 / Checksum Generator
Calculate CRC32, CRC32C and Adler32 checksums
MIME Checker
Check and validate MIME types
User Agent Parser
Parse user agent strings to identify browsers and OS
Cron Parser
Parse and validate cron job expressions
CIDR Calculator
Calculate network ranges and subnet masks
Chmod Calculator
Calculate Linux file permissions in numeric and symbolic notation
ASCII / Unicode Lookup
Look up ASCII and Unicode characters, find character codes, HTML entities, CSS escapes
Git Cheatsheet
Common Git commands quick reference with examples