HashTools

Fast, free, browser-based crypto utilities for developers. Hash, encode, and generate identifiers without sending a single byte to a server.

SHA-256 / SHA-512
Generate cryptographic SHA-256 or SHA-512 hashes from any text using the browser's Web Crypto API.
MD5
Compute MD5 hashes for checksums and legacy systems, with optional uppercase output.
Base64
Encode and decode UTF-8 text to and from Base64 with a one-click swap to flip the result.
UUID v4
Generate one or many random UUID v4 identifiers, with options for uppercase and dash-free output.
Bcrypt
Hash and verify passwords with bcrypt — adjust the work factor and check existing hashes.