How is the file encrypted?

AES-256 in WinZip mode, applied by the 7-Zip WebAssembly engine running in your browser. Both the file contents and the per-entry filenames are protected.

Can I recover the password if I lose it?

No. There is no recovery key, no email reset, no backdoor. The encryption is real — losing the password means losing access to the data.

Will the recipient need special software?

Most modern unzip tools (7-Zip, WinRAR, Keka, Archive Utility on macOS) handle AES-256 encrypted ZIPs. The built-in Windows Explorer extractor does not — use 7-Zip on Windows to open it.

Is the password sent over the network?

No. The password is used only inside your browser to derive the encryption key. Nothing about the password or the file ever leaves the page.

job card№ 12 of 19seal

Password-Protect ZIP

Encrypt files into a password-protected ZIP with AES-256 encryption. Set a password and download the archive.

routeclient-local

upload0 B

formatsZIP

1. Add files

Drop files here or click to browse

Select one or more files

Up to 2 GB per file.

instructions · step by step

How to use this tool

Encrypt files with a password by creating an AES-256 encrypted ZIP locally.

Open the Password Protect ZIP tool
Visit makemyzip.com/password-protect-zip. The 7-Zip WebAssembly engine handles the AES encryption locally.
Drop the files you want to protect
Drag files or a folder onto the dropzone. Folder structure is preserved.
Choose a strong password
Enter your password and confirm it. Pick something long and random — you cannot recover the archive if you forget it.
Create the encrypted ZIP
Click Create. The archive is built and AES-256 encrypted in your browser, then offered as a download.

questions · from the clerk's desk

Frequently asked questions

How is the file encrypted?: AES-256 in WinZip mode, applied by the 7-Zip WebAssembly engine running in your browser. Both the file contents and the per-entry filenames are protected.
Can I recover the password if I lose it?: No. There is no recovery key, no email reset, no backdoor. The encryption is real — losing the password means losing access to the data.
Will the recipient need special software?: Most modern unzip tools (7-Zip, WinRAR, Keka, Archive Utility on macOS) handle AES-256 encrypted ZIPs. The built-in Windows Explorer extractor does not — use 7-Zip on Windows to open it.
Is the password sent over the network?: No. The password is used only inside your browser to derive the encryption key. Nothing about the password or the file ever leaves the page.

3 picks

seal

Unlock ZIP

Open a password-protected ZIP with the correct password and extract its contents.

zip

pack

Create ZIP

Combine files and folders into a ZIP archive with adjustable compression levels.

zip

unpack

Extract ZIP

Open and extract files from ZIP archives. Download individual files or everything at once.

zip