Hash Tools

Generate hashes and checksums instantly: MD5, SHA-1/256/512, HMAC and more. Verify files and secure data right in your browser.

8 tools available

Blockchain Tools 2

Keccak SHA3 Hasher

Generate Keccak-256, Keccak-512, SHA3-256, SHA3-512 hashes online. Free Ethereum-compatible hash tool for smart contracts and blockchain development.

Solidity Function Selector

Generate Solidity function selectors from signatures. Convert function names to 4-byte selectors and event signatures to Topic0. Lookup common selectors instantly.

Developer Tools 5

Encoding 5

Bcrypt Hash Generator

Free online Bcrypt hash generator and password encryption tool. Generate secure bcrypt hashes for password storage or verify passwords against existing hashes. Supports customizable salt rounds (cost factor) for optimal security. Perfect for developers implementing secure authentication systems.

MD5 Hash Generator

Free online MD5 hash generator and MD5 encrypt tool. Generate MD5 hash from text instantly. Create 128-bit MD5 checksums for data integrity verification, file comparison, and development testing. Perfect for developers needing quick MD5 hash generation.

SHA-1 Hash Generator

Free online SHA-1 hash generator and SHA-1 encrypt tool. Generate SHA-1 hash from text instantly. Create 160-bit SHA-1 checksums for data integrity verification and development. Fast, client-side SHA-1 hashing.

SHA-256 Hash Generator

Free online SHA-256 hash generator and SHA-256 encrypt tool. Generate SHA-256 hash from text instantly. Create 256-bit SHA-256 checksums for blockchain, Bitcoin, SSL certificates, and secure data integrity. Industry-standard cryptographic hash function.

SHA-512 Hash Generator

Free online SHA-512 hash generator and SHA-512 encrypt tool. Generate SHA-512 hash from text instantly. Create 512-bit SHA-512 checksums for maximum security, data integrity, and cryptographic applications. Most secure SHA-2 family algorithm.

File Tools 1

Hash Checker

Calculate file hashes online. Generate MD5, SHA-1, SHA-256, SHA-512 checksums. Free hash calculator tool. Verify file integrity easily.