Encrypt Online
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Encrypt Tweet

Encrypt short text with a passphrase

Encrypt short text with a passphrase, then use the matching Decrypt Tweet tool to recover it.
Input + outputAES-256-GCM for new values; check the final character count
Use AES-256-GCM for new values. Legacy AES-CBC is for older recipients.
Encrypt Online does not store the passphrase or provide passphrase recovery.
EncryptTweet
Encrypt short text for sharing

This tool creates an EOE1 AES-256-GCM envelope by default. AES-256-CBC remains available for compatibility with values created by the older workflow. Neither format preserves the original length, so check the ciphertext against the destination's character limit.

Anyone who has both the ciphertext and passphrase can recover the message. Test the result in the Decrypt Tweet tool before sharing it.

How encryption works
  1. Type your tweet into the text area.
  2. Enter a passphrase that is not reused elsewhere.
  3. Encrypt the text. The ciphertext will be longer than the original message.
  4. Copy the ciphertext and share the passphrase through a separate channel.
When this tool helps

Use this page for a short encrypted message when the recipient already has a separate way to receive the passphrase. Test the ciphertext in the Decrypt Tweet tool before sharing it.

Decrypt the message

If you've received an encrypted tweet and need to decrypt it, use our Decrypt Tweet tool.