Best Encoders & Crypto Tools

Encode or decode text to/from Base64, UTF-8 safe.

Encode or decode strings using encodeURIComponent/encodeURI.

Encode or decode HTML entities in text.

Generate SHA-1/256/384/512 hashes of text.

Sign a message with HMAC using a secret key.

Decode a JWT's header and payload, and check expiry.

Encrypt or decrypt text with AES-GCM and a passphrase.

Generate cryptographically secure random strings.

Encode or decode text with ROT13 or any Caesar shift.

Hash text or a file and compare against an expected checksum.

Generate RSA or ECDSA key pairs and export them as PEM.

Compute SHA-1/256/384/512 digests of a local file.

Encode or decode text with the classic Vigenère cipher.

Encode or decode text using RFC 4648 Base32.