Are my files uploaded?

No — the ZIP is built locally in your browser and downloaded directly.

How many files can I add?

As many as your device's memory allows; everything stays on your machine.

Files are stored in a standard ZIP container readable by any unzip tool.

Drop several files to bundle them into one ZIP archive, entirely in your browser. Nothing is uploaded.

Drop files to add or click to uploadProcessed in your browser — never uploaded.