Question 1

Are my files uploaded?

Accepted Answer

No. ZIP creation uses the JSZip library running entirely in your browser. Your files never leave your device.

Question 2

How many files can I add?

Accepted Answer

There is no hard limit. The practical limit depends on your device memory and the total uncompressed size.

Question 3

What compression does it use?

Accepted Answer

DEFLATE compression at level 6, the same algorithm used by most ZIP tools.

Question 4

Can I add more files after the initial drop?

Accepted Answer

Yes. Drop more files onto the drop zone at any time before clicking Create ZIP.

Create ZIP

Frequently asked questions about Create ZIP