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How to Lock and Unlock Files and Text With a Password

Security · Step-by-step guide · 5 steps · 2 min read

This tool locks text or files with a password. Only someone with the password can open them. Use it before you email a private file or save notes online.

Open the Encrypt & Decrypt Text and Files →

In the pictures, orange letters like A show where to look. Each step tells you its letter.

Step 1: Choose Text or Files

Pick the Text tab for a message. Pick Files for documents and photos. Keep the switch on Encrypt. See A in the picture.

Step 2: Add what you want to lock

In section 1, type in Text to encrypt. Or choose your files. See B in the picture.

Step 3: Set a strong password

In 2 Passphrase & options, type a password and type it again. Or press Suggest a strong passphrase. A bar shows how strong it is. See C in the picture.

Step 4: Press Encrypt

Press Encrypt (or Encrypt Files) under the password. See D in the picture.

Encrypt tool with a message typed in and a strong passwordZoom
Text tab (A), your message (B), password (C) and Encrypt (D).

Step 5: Copy or download the result

Press Copy or Download as file. To open it later, switch to Decrypt. Put it back in, type the same password, and run it. See E in the picture.

The locked message shown as a long block of random textZoom
The locked message with Copy and Download as file (E).

Tips and questions

What if I forget my password?

Then the data is lost. There is no reset. Keep your password somewhere safe, like a password manager.

How do I send the password to someone?

Send it a different way from the file. For example, tell them by phone. Do not put both in one email.

What are keypairs for?

The Keypairs tab makes a public key and a private key. People lock files with your public key. Only your private key opens them. So you never need to share a password.

Can I unlock files without this website?

Yes, for some settings. Under Advanced options, the tool can show a Decrypt from a terminal command.

Privacy

Locking and unlocking happen in your browser. Your files, text and password are never sent to us.

Try it now

The Encrypt & Decrypt Text and Files is free. You do not need an account.

Open the Encrypt & Decrypt Text and Files →

Related tools and guides

  • Hash Generator (SHA-1, SHA-256, SHA-512, MD5) — read the guide
  • LAN File Transfer — Send Files Over WiFi — read the guide
  • WAN File Transfer — Send Files Over the Internet — read the guide

See all tool guides

Wivrix

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