Skip to main content
7BBusyBoss

File Encrypter — Free, Browser-Based AES-256

Free in-browser file encrypter. Password-based AES-256-GCM with PBKDF2 (200k iters). Zero-knowledge — your password and files never leave the page.

File Encrypter

Files never leave your browser

Drop files here or click to pick

AES-256-GCM · PBKDF2 (200k iters) · runs locally · Encrypt starts immediately after drop

⚠ Without your password, the file can never be recovered. This is true zero-knowledge encryption — no backdoor, no reset link. Save the password somewhere safe before encrypting anything important.
About this tool

How the encryption works

Files are encrypted with AES-256-GCM, the same algorithm used by browsers for HTTPS and by 1Password / Signal. The key is derived from your password via PBKDF2 (200,000 SHA-256 iterations) to slow down offline guessing attacks.

The output .enc file packs a magic header, salt, IV, and the AES-GCM ciphertext+tag together. Without the password, recovery is mathematically infeasible — no backdoor, no reset.

How to use the File Encrypter

Takes about a minute. No signup, no download, your data stays in your browser.

  1. 1
    Open the tool. Scroll up to the File Encrypter above — it loads instantly in your browser, no install needed.
  2. 2
    Enter your values. The fields come pre-filled with realistic defaults so you can see how it works — replace them with your own numbers.
  3. 3
    Read the result. The output updates instantly. Copy or share it — nothing is uploaded to a server, everything stays on your device.

Frequently asked questions

Common questions about the File Encrypter.

Is the File Encrypter free to use?

Yes. The File Encrypteron 7BusyBoss is completely free — no signup, no paywall, no usage cap.

Do I need to sign up to use the File Encrypter?

No. The File Encrypterworks instantly in your browser — no account needed. Signing in with Google is optional and only unlocks features like saving favorites and higher AI build limits.

Does the File Encrypter work on mobile?

Yes. Every tool on 7BusyBoss is mobile-responsive and works in any modern browser — Chrome, Safari, Firefox, Edge — on phones, tablets and desktops.

Is my data safe when I use the File Encrypter?

Yes. The File Encrypterruns entirely in your browser — your inputs never leave your device unless the tool explicitly fetches public data (e.g. currency rates). We don't store the values you type.

Community rating

Discussion (0)

No comments yet. Start the discussion.

Keep exploring

Related tools across 7BusyBoss — all free, all instant.