Color Converter
Convert colors between HEX, RGB, HSL, and HSV formats
Image Color Picker
Pick colors from images and extract dominant color palettes
Epoch Timestamp Converter
Convert between Unix timestamps and human-readable dates
JSON to Table/CSV
Convert JSON arrays to tables or CSV format
JSON to YAML
Convert between JSON and YAML formats
XML to JSON
Convert between XML and JSON formats
CSV to JSON
Convert between CSV and JSON formats
JSON to TOON
Convert between JSON and TOON (Token-Oriented Object Notation) for efficient LLM communication
Number Base Converter
Convert numbers between different bases
Image to Base64
Convert images to Base64 data URLs for embedding in HTML/CSS
Markdown to HTML
Convert between Markdown and HTML formats
TOML to JSON
Convert between TOML and JSON formats
Cron Expression Parser
Parse cron expressions and show next execution times
Protobuf to JSON
Convert Protobuf schema definitions to JSON Schema
Case Converter
Convert text between different case formats (camelCase, snake_case, kebab-case, etc.)
Escape / Unescape
Escape or unescape special characters in text
Line Sorter
Sort lines of text alphabetically with options for case sensitivity, duplicate removal, and empty line handling
List Comparer
Compare two lists and find differences
Lorem Ipsum Generator
Generate Lorem Ipsum placeholder text
Text Comparer
Compare two texts and highlight differences
Text Analyzer
Comprehensive text analysis with word count, character count, reading time, and advanced statistics
Regular Expression Tester
Test and debug regular expressions with live matching
Reverse String
Reverse text character by character
Remove Duplicates
Remove duplicate lines from text while preserving the first occurrence
Whitespace Remover
Remove or normalize whitespace in text with multiple options
Slug Generator
Generate URL-friendly slugs from text
String Truncator
Truncate strings with various options for ellipsis position and word boundaries
Word Frequency Counter
Count word frequencies in text with filtering options
Text to ASCII Art
Convert text to ASCII art with multiple font styles
Base64 Text
Encode and decode Base64 text
Binary Encoder/Decoder
Encode text to binary or decode binary back to text
HTML Encoder/Decoder
Encode and decode HTML entities
ROT13 Cipher
Encode and decode text using the ROT13 Caesar cipher
URL Encoder/Decoder
Encode and decode URL components
Hex Encoder/Decoder
Convert text to hexadecimal and vice versa
JWT Decoder
Decode and inspect JSON Web Tokens (JWT) to view header, payload, and signature
Punycode Encoder/Decoder
Encode and decode Punycode for internationalized domain names
Unicode Escape Encoder
Convert text to and from Unicode escape sequences
Morse Code Translator
Translate text to and from Morse code with audio playback
CSS Formatter/Minifier
Format or minify CSS stylesheets
SQL Formatter
Format and beautify SQL queries with proper indentation
XML Formatter
Format and validate XML with proper indentation
SVG Viewer
View and preview SVG code with syntax highlighting
YAML Validator
Validate YAML syntax and view parsed result as JSON
JSON Formatter
Format, minify, and validate JSON data
JavaScript/TypeScript Formatter
Format and beautify JavaScript and TypeScript code
HTML Formatter
Format and beautify HTML code with proper indentation
GraphQL Formatter
Format and beautify GraphQL queries and schemas
Markdown Preview
Live preview of Markdown content with GitHub Flavored Markdown support
Color Palette Generator
Generate beautiful color palettes with various schemes
Hash / Checksum
Generate various hash checksums
Nanoid Generator
Generate compact, URL-safe unique IDs
Password Generator
Generate secure random passwords
QR Code Generator
Generate QR codes from text or URLs
Random String Generator
Generate random strings with various character types
UUID Generator
Generate UUIDs (v1, v4, v5)
Gradient Generator
Create beautiful CSS gradients with multiple color stops
Cron Expression Generator
Visual cron expression builder with presets and human-readable descriptions
.gitignore Generator
Generate .gitignore files for various languages and frameworks
README Generator
Generate README.md templates with customizable sections
License Generator
Generate common open source license files
Regex Generator
Generate regular expressions from common patterns with explanations
Box Shadow Generator
Visual CSS box-shadow generator with multiple shadows support
Border Radius Generator
Visual CSS border-radius generator with individual corner control
Favicon Generator
Generate simple text or emoji favicons with customizable colors
Function Selector
Calculate Solidity function selectors
Keccak-256 Hash
Calculate Keccak-256 hash
ETH Unit Converter
Convert between Wei, Gwei, and ETH
ABI Encoder/Decoder
Encode and decode Ethereum ABI data
Address Checksum
Convert Ethereum addresses to checksum format
Event Topic Calculator
Calculate event signature hashes for Solidity events
Signature Verifier
Verify Ethereum signatures (ECDSA)
ENS Name Resolver
Resolve ENS names to Ethereum addresses
Transaction Decoder
Decode raw Ethereum transaction data
Private Key to Address
Convert private key to Ethereum address
Mnemonic Generator/Validator
Generate and validate BIP39 mnemonic phrases
Gas Price Estimator
Estimate Ethereum transaction costs in ETH and USD
Token Decimals Converter
Convert between human-readable amounts and raw token amounts
Smart Contract Method ID Finder
Look up smart contract method signatures by their 4-byte method ID
Contract Storage Slot Calculator
Calculate storage slots for mappings and arrays in Solidity smart contracts
EIP-712 Message Hasher
Calculate EIP-712 hashes for typed structured data signing
ECDSA Signature Parser
Parse ECDSA signatures into r, s, v components
Uniswap Price Calculator
Calculate token prices, slippage, and impermanent loss for Uniswap pools
Token Launch Calculator
Calculate tokenomics for liquidity pool creation and token launches
Timelock Transaction Builder
Build timelock governance transactions with calldata and ETA
Multi-Chain Address Deriver
Derive addresses from private keys or mnemonics across multiple EVM chains
Safe Batch Transaction Builder
Build batch transactions for Gnosis Safe multi-sig wallets
Proxy Implementation Checker
Check proxy contract implementations and admin addresses
CREATE2 Address Predictor
Predict contract addresses using CREATE2 and find vanity addresses
Contract Size Calculator
Calculate contract bytecode size and check against 24KB limit
Foundry Cheatcode Generator
Generate Foundry test cheatcodes (vm.prank, vm.deal, vm.warp, etc.)
Block Number ⇔ Timestamp
Convert between block numbers and timestamps for different chains
Revert Reason Decoder
Decode revert reasons from failed transactions
Transaction Trace Visualizer
Visualize transaction execution traces with call hierarchy
ERC20 Permit Generator
Generate EIP-2612 permit signatures for gasless approvals
NFT Metadata Validator
Validate NFT metadata against OpenSea and ERC standards
Token URI Generator
Generate token URIs for IPFS, Arweave, and data URIs
Bytecode Differ
Compare contract bytecodes to verify implementations
Access Control Visualizer
Visualize contract access control patterns and roles
Delegatecall Storage Analyzer
Analyze storage layout compatibility for delegatecall and proxies
JSON Path Finder
Find and extract values from JSON using JSONPath expressions
Diff Viewer
Compare two texts side by side with line-by-line or word-by-word diff
Chmod Calculator
Convert between numeric and symbolic Unix file permissions
HTTP Status Code Reference
Searchable reference for HTTP status codes with descriptions
ASCII Table Reference
Searchable ASCII character table with decimal, hex, and binary values
IP Address Calculator
Calculate subnet information from IP/CIDR notation
CIDR Calculator
Convert between CIDR notation and IP ranges, split subnets
User Agent Parser
Parse User-Agent strings to extract browser, OS, and device information
Crontab Guru
Explain cron expressions in human-readable form with next execution times
