Crypto

Hash files, compute HMAC signatures, inspect JWTs, and encrypt with AES-GCM using the Web Crypto API. Digests, tokens, and passwords stay in the browser so you can debug auth and checksums without a hosted crypto service.

Hash Generator

Generate cryptographic hashes (SHA-256, SHA-1, MD5, and more) from text using Web Crypto in your browser. Create checksums for files-as-text, compare digests, and copy hex output. Hashing never leaves the tab, so test strings and secrets stay private.

HMAC Generator

Compute HMAC-SHA signatures in the browser for webhook secrets and API signing. Paste a message and a key, pick SHA-1 through SHA-512, and copy hex or Base64. Keys stay in the tab.

JWT Decoder

Decode JSON Web Tokens locally to inspect the header, payload, and expiry claims. Paste a JWT and read Base64URL-encoded fields without verifying signatures on a remote service. Ideal for debugging auth flows while keeping tokens off the network.

AES Encrypt

Encrypt and decrypt text with AES-256-GCM in the browser. A password is stretched with PBKDF2; output is Base64(salt + IV + ciphertext). Useful for sharing a short secret over a side channel you control. Keys never leave the tab.

Secret Redactor

Redact JWTs, AWS keys, GitHub tokens, private keys, bearer tokens, and emails in pasted logs. Replacement happens in the tab.