Password-protect 7Z archives.
7Z with AES-256 and hidden file names — built on-device.
Drop any files here
or browse your files
Paste with ⌘V · or drop files anywhere on the page
Files never leave your device. Everything runs in your browser, nothing touches a server — tools you've used even work offline.
Create a password-protected 7Z entirely in your browser — AES-256 encryption with an option to hide even the file names, built locally so files and password never leave your device. Drop files, set a password, download one locked .7z.
How it works
- Drop files anywhere on the page, click to browse, or paste with ⌘V.
- Pick a quality or preset — or set an exact target size and let the tool find it.
- Compress, compare before/after, and download — individually or as a ZIP.
AES-256, and nothing to list without the password
7Z encrypts with AES-256 as the archive is built. Tick “Also hide file names inside the archive” and the archive headers are encrypted too — without the password an attacker cannot even see what files are inside, let alone open them. That header encryption is something the ZIP format cannot do (Protect ZIP explains the difference), and it is the reason 7Z is the better choice when the file names themselves are sensitive.
The password is used in memory on your device and never stored or transmitted; there is no account, no cloud, no recovery service. Compression still applies before encryption, so a protected 7Z is usually also the smallest way to ship the files — Create 7Z covers the compression side in detail.
Opening it on the other side
Recipients open the archive with any modern unarchiver — 7-Zip on Windows, Keka on macOS, p7zip on Linux, all free. On the way back, Extract 7Z opens password-protected 7Z archives right in the browser, including ones with hidden file names.
Frequently asked questions
What does “hide file names” actually do?
It encrypts the archive headers (7-Zip’s -mhe switch), so the list of contents is unreadable without the password. Without it, an encrypted 7Z still shows its file names — like a locked box with a printed inventory.
Can the password be recovered?
No. AES-256 has no backdoor, and this site never sees or stores the password — the encryption runs entirely on your device. A forgotten password means the contents are permanently unreadable.
Does the protection weaken the compression?
No — files are compressed first and encrypted after, so a protected 7Z is the same size as an unprotected one. Encrypted data itself cannot be compressed, which is why the order matters and why the tool handles it for you.
Is it private?
Yes. Archives are built and converted entirely in your browser — neither the archive nor the files inside it are ever uploaded, and any password you set is applied locally. The server does nothing but deliver this page. Want proof? Run one file through, switch your connection off, and run another — it still works.