What happens if I forget my passphrase?

There's no way to recover an encrypted file without it — the passphrase is the only key, by design, so store it somewhere safe before encrypting anything important.

Is AES-GCM considered strong encryption?

Yes, it's a modern, widely trusted encryption standard used across banking, government and enterprise systems, not a simplified or weakened variant.

Does the file get uploaded anywhere during encryption or decryption?

No, the entire process runs locally in your browser — neither the file nor your passphrase is ever sent anywhere.

Does File Encryptor / Decryptor upload my files to a server?

No. File Encryptor / Decryptor runs entirely in your browser using on-device processing, your files never leave your device.

File Encryptor / Decryptor

Encrypt a file with a passphrase using AES-GCM, or decrypt it back, entirely in your browser.

Runs in your browser

Drop a file here

Choose File

Passphrase

Uses AES-GCM encryption with a passphrase-derived key, entirely in your browser. Remember your passphrase — it can't be recovered.

About this tool

Sending a sensitive file over email or a shared drive without protection means anyone with access to that channel can read it — a real concern for financial documents, personal records or anything confidential. This tool encrypts a file with a passphrase using AES-GCM, a strong, modern encryption standard, entirely in your browser, so the file (and your passphrase) never leave your device; decrypting later requires the same passphrase, so it's essential to remember it since there's no recovery option.

Frequently asked questions

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