DevToolBox

Security Tools

Generate UUIDs, passwords, and evaluate hashes or JWTs securely in your browser.

JWT Decoder

Inspect JWT headers and payload locally.

Hash Generator

Generate SHA-1, SHA-256 and SHA-512 hashes in the browser.

SHA-256 Hash Generator

Generate SHA-256 cryptographic hashes instantly.

SHA-1 Hash Generator

Generate SHA-1 cryptographic hashes instantly.

MD5 Hash Generator

Generate MD5 cryptographic hashes instantly.

UUID Generator

Generate v1 and v4 UUIDs, single or in batches.

Password Generator

Generate strong passwords with custom rules.

HMAC Generator

Compute HMAC-SHA256/512 from a message and secret.

Bcrypt Hash

Hash and verify passwords with bcrypt.

JWT Generator

Sign a JWT with a secret using HS256 or HS512.