Pack several files into one ZIP archive locally - no upload, right in your browser. Your files never leave your device.
Running locally on your device ...
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Your files never left your device
No. Everything runs in your browser - your file never leaves your device. How this is verifiable
A ZIP archive bundles many files into a single one - handy for emailing, uploading in one go or archiving. ZIP is the most widely supported archive format and opens on Windows, macOS, Linux and every phone without extra software.
This tool builds the ZIP entirely locally in your browser (fflate, pure JavaScript, DEFLATE compression). Unlike online packers your files are not sent to a server - it even works in airplane mode.
Typical occasions: sending a job-application package of CV, references and cover letter, gathering a folder of holiday photos, or sharing an entire project as a single attachment. Because recipients unpack the format everywhere without installing anything, you avoid follow-up questions. How much the package shrinks depends on the contents: text documents shrink noticeably, already-packed media barely.
| Output format | ZIP |
|---|---|
| Batch processing | Yes |
| Processing | Locally in your browser (JavaScript) |
| File upload | None |
Limitations: Very large collections need time and memory on older devices. Encrypted (password-protected) ZIPs are deliberately not created. Folder structure is flattened (file names only).
No. The ZIP is built entirely locally in the browser - nothing is sent.
Any - images, documents, audio, anything. ZIP compresses losslessly using the Deflate method. Text, CSV, logs and uncompressed formats gain the most; already-compressed files such as JPG, MP4 or MP3 barely shrink, but they still bundle up neatly.
Yes, with any program or with our "Extract ZIP" tool.
No, encrypted ZIPs are deliberately not created; the archive has no password.