HeroTools / Text & Code
Local · Private

Text & File Encryptor

Password-based AES-256-GCM encryption for text and files — keys are derived with PBKDF2 and everything runs in your browser via the Web Crypto API.

Output appears here.
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Drop a file to encrypt
or click to browse (any type, any size)
🔒 Files never leave your browser

Decrypt mode expects a .enc file produced by this tool.

🔒 100% local. Encryption and decryption happen entirely on your device. Your password is never stored or sent anywhere, and the key is derived fresh each time with PBKDF2 (150,000 iterations, SHA-256) using a random salt. AES-256-GCM also authenticates the data, so a wrong password or tampered ciphertext fails safely. There is no recovery — if you lose the password, the data is unrecoverable.

About Text & File Encryptor

Text & File Encryptor is a free, private text & code tool that runs entirely in your web browser. Password-encrypt text or files with AES-256 (Web Crypto) — fully offline. Because everything happens locally on your device, your files and data are never uploaded to a server, there is no sign-up or installation required, and it keeps working offline. It is handy for encrypt, aes, password, secure. Like every HeroTool by Digital Heroes, Text & File Encryptor is 100% free with no limits.

How to use Text & File Encryptor

  1. Open Text & File Encryptor — it runs entirely in your browser, with no signup.
  2. Paste or type your text or code into the editor.
  3. Adjust the options to match exactly what you need.
  4. Copy or download your result — it is free, and your data stays on your device.

Frequently asked questions

Is Text & File Encryptor free?

Yes — Text & File Encryptor is completely free for everyone. No sign-up, no account and no usage limits.

Is it private? Are my files uploaded anywhere?

No. Text & File Encryptor runs entirely in your browser on your own device, so your data never leaves your computer and nothing is uploaded to a server.

Does it work offline?

Yes. HeroTools is a Progressive Web App — once the page has loaded it keeps working offline, and you can install it as an app from your browser.

Do I need to install anything or create an account?

No. Just open the page and start using it. Installing it as an app is optional and only adds offline convenience.

What does Text & File Encryptor do?

Password-encrypt text or files with AES-256 (Web Crypto) — fully offline.

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