All Tools

Browse all 77 developer tools

Web3

Address & Keys

Address Checksum

ENS Name Resolver

Private Key to Address

Multi-Chain Address Deriver

Transaction & Gas

Transaction Decoder

Gas Price Estimator

Token & Decimals

ETH Unit Converter

Token Decimals Converter

Smart Contracts

Function Selector

ABI Encoder/Decoder

Event Topic Calculator

Signature Verifier

Smart Contract Method ID Finder

Contract Storage Slot Calculator

Proxy Implementation Checker

CREATE2 Address Predictor

Contract Size Calculator

Encoding & Hashing

Keccak-256 Hash

EIP-712 Message Hasher

ECDSA Signature Parser

DeFi & Protocols

Uniswap Price Calculator

Token Launch Calculator

Governance & DAOs

Timelock Transaction Builder

Safe Batch Transaction Builder

Testing & Debugging

Foundry Cheatcode Generator

Block Number ⇔ Timestamp

Revert Reason Decoder

Transaction Trace Visualizer

Tokens & NFTs

ERC20 Permit Generator

NFT Metadata Validator

Token URI Generator

Security & Analysis

Bytecode Differ

Access Control Visualizer

Delegatecall Storage Analyzer

Converters

Time & Date

Epoch Timestamp Converter

Numbers

Number Base Converter

Data Formats

JSON to Table/CSV

Image to Base64

Colors

Color Converter

Image Color Picker

Text

Case & Format

Escape / Unescape

Whitespace Remover

Comparison

Analysis

Regular Expression Tester

Line Operations

Remove Duplicates

Encoders / Decoders

Text Encoders

Binary Encoder/Decoder

HTML Encoder/Decoder

URL Encoder/Decoder

Hex Encoder/Decoder

Cryptographic

Formatters

Code Formatters

CSS Formatter/Minifier

Data Formatters

Generators

ID Generators

Nanoid Generator

Text Generators

Random String Generator

Cryptographic

Hash / Checksum

Password Generator

Color & Graphics

Color Palette Generator

QR Code Generator

Gradient Generator