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Free Secret Message Encryptor & Decryptor

Turn any private note into scrambled text that nobody can read without your secret password. Type your message, choose a password, and get a block of text you can copy or save. To read it again, paste that text back in and enter the same password. Everything happens on your device — we never see your password or your message, and no account is needed.

Have something personal you want to share safely — a note to a friend, a surprise plan, or sensitive details you would rather not send in plain text? This tool locks your message behind a password you choose. Only someone who knows that exact password can unlock and read it. Share the locked message by email, chat, or anywhere else, but tell the password separately (for example by phone or in person). If you forget the password, the message cannot be recovered — not by us, not by anyone.

Mode

Runs 100% in your browser. Your data never leaves your device.

Uses your browser's built-in security features to scramble and unscramble messages on your device. Nothing is sent to our servers and nothing is saved after you close the page.

How to Use Secret Message Encryptor/Decryptor

  1. Choose Lock message or Unlock message at the top
  2. To lock: type a password and your message, then click Lock message
  3. Copy or download the scrambled text — share it anywhere, but share the password separately
  4. To unlock: paste the scrambled text, enter the same password, and click Unlock message

When Would You Use This?

Sending a personal note through email or chat? Lock it first so only the person with your password can read it — even if someone else sees the message, it will look like nonsense.

Planning a surprise and want to share details without the recipient stumbling onto them? Lock the plan and give them the password when you are ready.

Sharing something sensitive through a work ticket or shared document? Add an extra layer so the text is unreadable without the password you share on a separate call or text.

Frequently Asked Questions

Is this encryptor free to use?
Yes, completely free. No signup, no login, no payment ever.
Do you store my password or messages?
No. Locking and unlocking happen entirely on your device. We cannot see, store, or recover your password or message.
What happens if I lose my password?
The message is gone for good. There is no reset button and no one — including us — can unlock it without the password.
How secure is this?
Your browser uses the same kind of strong scrambling trusted by banks and apps worldwide. Each locked message gets its own unique random code so the same password never produces the same scrambled text twice.
Can the people who run this website read my messages?
No. Your password and message never leave your device. Only someone who knows the password can unlock the scrambled text.

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