Developer Tools

Essential tools for developers and programmers

JSON Formatter

Format and beautify JSON data with proper indentation. Validate JSON syntax and make it readable.

JSON Minify

Minify and compress JSON data by removing whitespace. Reduce file size for faster loading.

Base64 Encoder/Decoder

Encode text to Base64 or decode Base64 to text. Support for UTF-8 and binary data.

URL Encoder/Decoder

Encode special characters for URLs or decode URL-encoded strings. Essential for web development.

Hash Generator

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text. Secure hash calculator for developers.

Calculate MD2 Hash

Compute MD2 hash from text. Client-side MD2 checksum calculator for developers.

Calculate MD4 Hash

Compute MD4 hash from text. Client-side MD4 checksum calculator.

Calculate MD5 Hash

Compute MD5 hash from text. Client-side MD5 checksum calculator for file integrity and legacy use.

Calculate MD6 Hash

MD6 hash calculator. Note: MD6 is not widely supported; this tool may show Not supported.

Calculate RipeMD-128 Hash

Compute RipeMD-128 hash from text. Client-side checksum calculator.

Calculate RipeMD-160 Hash

Compute RipeMD-160 hash from text. Client-side RipeMD-160 checksum calculator.

Calculate RipeMD-256 Hash

RipeMD-256 hash calculator. Note: RipeMD-256 may show Not supported.

Calculate RipeMD-320 Hash

RipeMD-320 hash calculator. Note: RipeMD-320 may show Not supported.

Calculate SHA1 Hash

Compute SHA-1 hash from text. Client-side SHA-1 checksum calculator.

Calculate SHA2 Hash

Compute SHA-2 family hashes (SHA-224, SHA-256, SHA-384, SHA-512) from text. Client-side secure hash calculator.

Calculate SHA-224 Hash

Compute SHA-224 hash from text. Client-side SHA-224 checksum calculator.

Calculate SHA-256 Hash

Compute SHA-256 hash from text. Client-side SHA-256 checksum calculator for secure hashing.

Calculate SHA-384 Hash

Compute SHA-384 hash from text. Client-side SHA-384 checksum calculator.

Calculate SHA-512 Hash

Compute SHA-512 hash from text. Client-side SHA-512 checksum calculator for secure hashing.

Calculate SHA3 Hash

Compute SHA-3 family hashes from text. Client-side SHA3 hash calculator.

Calculate CRC16 Hash

Compute CRC-16 (CCITT) checksum from text. Client-side CRC16 calculator.

Calculate CRC32 Hash

Compute CRC-32 checksum from text. Client-side CRC32 calculator.

Calculate Adler32 Hash

Compute Adler-32 checksum from text. Client-side Adler32 calculator.

Calculate Whirlpool Hash

Compute Whirlpool hash from text. Client-side Whirlpool hash calculator.

Calculate NTLM Hash

Compute NTLM (NT) hash from password. Client-side NTLM hash calculator for Windows compatibility.

Calculate All Hashes at Once

Compute many hashes at once: MD2, MD4, MD5, SHA-1, SHA-2, SHA-3, RipeMD-160, CRC16, CRC32, Adler32, Whirlpool, NTLM. Client-side only.

HTML Minifier

Minify HTML code by removing whitespace, comments, and unnecessary characters. Reduce HTML file size.

CSS Minifier

Minify CSS code by removing whitespace and comments. Optimize CSS for faster page loads.

JavaScript Minifier

Minify JavaScript code by removing whitespace and shortening variable names. Reduce JS file size.

Regex Tester

Test and debug regular expressions in real-time. See matches highlighted with capture groups.

Diff Checker

Compare two texts and see the differences highlighted. Perfect for code review and document comparison.

XML Formatter

Format and beautify XML with proper indentation. Validate XML syntax and make it readable.

Markdown Preview

Write and preview Markdown in real-time. Support for GitHub Flavored Markdown with syntax highlighting.

User Agent Parser

Parse and decode user agent strings. Identify browser, OS, device type, and more.

IP Info Lookup

Look up information about any IP address. Find location, ISP, timezone, and more.

URL Analyzer

Analyze short links safely. Resolve redirect chains, detect suspicious parameters, and evaluate URL safety.

JWT Decoder

Decode and inspect JSON Web Tokens (JWT). View header, payload, and verify signature.

SQL Formatter

Format and beautify SQL queries with proper indentation. Support for multiple SQL dialects.

Webhook Tester

Test webhooks with a unique URL. Inspect incoming requests with headers and body.

Checksum Address Generator

Convert Ethereum addresses to checksummed format using EIP-55 standard. Validate addresses with built-in verification. Free, secure, client-side processing.

Address Validator

Validate Ethereum addresses fast. Check 0x prefix, length, hex characters, and EIP-55 checksum. Copy normalized lowercase or checksummed output instantly.

Keccak256 Hasher

Generate keccak256 hash online instantly. Solidity compatible hashing for Ethereum smart contract development. UTF-8 text and hex input modes.

ABI Encoder & Decoder

Encode function calls into ABI format or decode ABI-encoded data back into human-readable form. Essential for Ethereum smart contract development.

Event Topic Generator

Generate Ethereum event topic0 by hashing Solidity event signatures with keccak256. Supports direct signature input and ABI JSON parsing.

Function Selector Generator

Generate Ethereum 4-byte function selectors from Solidity function signatures or ABI JSON. Uses keccak256 hashing for accurate function selector values.

JSON Escape/Unescape

Escape special characters for JSON strings or unescape them back. Handles quotes, newlines, tabs, and backslashes.

Certificate Decoder

Decode PEM-encoded X.509 certificates. View subject, issuer, validity dates, fingerprint, and signature algorithm. Essential for SSL/TLS debugging.