Password Protect ZIP Archives Online

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Password Protect ZIP Archives Online

Lock any ZIP archive behind a strong password with modern AES-256 encryption that runs entirely in your browser.

Compress Files

Drop files or folders, configure compression and optional encryption, then generate a downloadable archive.

Drop files here or click to browseArchive nameCompression methodCompression level (6)

0 = fastest, 9 = smallest

Password protection is always enabled on this tool page.

Archive password

AES-256-GCM encryption protects archive payloads. Password-protected files are readable with ToolHop.

How to use this tool

Add files to the archive creator and choose an output filename.
Enable password protection and enter a strong passphrase.
Create and download the protected archive, then verify unlock using the same password.

Protection behavior

Password mode wraps ZIP payload data with AES-256-GCM encryption.
Protected archives can be unlocked from the same ToolHop archive workflow.
All encryption and packaging operations run locally in-browser.

Usage tips

Use long, unique passwords for shared archives.
Test decryption before sending critical files externally.
Keep unencrypted originals secured until recipient access is confirmed.

FAQ

Is this the same as classic ZIP password format?: No. This tool applies ToolHop AES-256-GCM wrapping over ZIP payload data for modern client-side protection.
Can I unlock the archive without ToolHop?: Use ToolHop's archive extraction workflow for guaranteed compatibility with protected outputs.
Are files uploaded during encryption?: No. Encryption is performed entirely in your browser.