Text Encryptor

Enter text and a passphrase to encrypt it, or paste previously encrypted text and the same passphrase to decrypt it.

Updates instantly as you type

01 / Fast steps

  1. Enter text (plain, or previously encrypted with this tool) and a passphrase.
  2. Read the encrypted or decrypted result instantly.

02 / Best for

  • Sharing a sensitive note or password over an untrusted channel.
  • Storing a piece of text encrypted in a notes app or file.
  • Quickly checking that an encrypted value decrypts with the expected passphrase.

03 / Why here

  • Encrypts using AES-GCM with a PBKDF2-derived key, entirely in your browser.
  • Auto-detects whether the input is plain text or previously encrypted text.
  • The passphrase and plain text are never sent anywhere.

04 / Keep in mind

  • If you lose the passphrase, the encrypted text cannot be recovered. There is no backdoor.

Good to know

Questions & answers

01

Is this sent to a server?

No, encryption and decryption both run entirely in your browser using the native Web Crypto API.

02

What happens if I use the wrong passphrase?

Decryption fails safely with an error message; it will never silently return incorrect data.

03

Is Text Encryptor free to use?

Yes, Text Encryptor is completely free, with no sign-up and no usage limits. It runs entirely in your browser, so your data never leaves your device.