Free · Runs on your device · No signup

Encrypt and Decrypt File

Encrypt or decrypt a file locally with AES-256-GCM and a versioned OpenFileTools envelope.

You can also drop files anywhere in this panel.

Private by design. Password and file bytes remain in memory and are cleared from the form after each attempt.

Mode

Choose a file and enter its password.

Why this tool is different

Create authenticated ciphertext with random salt and IV, or decrypt a compatible .oftenc file.

Requirements and recommendations

How to use Encrypt File

  • Choose the source files or enter the requested value.
  • Review detected facts, settings, and safety limits before processing.
  • Download or copy only the result you have reviewed.
How OpenFileTools processes it

Local processing, explicit choices.

OpenFileTools performs this workflow locally after an explicit action. File bytes, paths, passwords, and results are not uploaded, persisted, logged, or added to URLs.

Frequently asked

Questions, answered.

Is my input uploaded?

No. Processing stays in memory in this browser tab.

Does this change the original?

No. Any output is a separate download.

Related guide

Learn more about this task.

Read the related guide