ZIP Builder

A ZIP file bundles multiple files into one compressed package. It finds repeated patterns in your data and stores them efficiently, reducing the total size. One ZIP is easier to share than many separate files.

Drop your files or folders onto the page. They appear in the list on the left. Give your archive a name and click Download. The ZIP file saves directly to your computer.

Yes. Drag and drop a folder and its portable file structure will be preserved. Files with unsafe or incompatible names are skipped.

Selected files have no combined size limit, but each file and the finished ZIP must be under 4 GB for compatibility. Available browser memory may set a lower practical limit. A ZIP intended for a Kurodyne product upload must be no larger than 50 MB.

It depends on what you're compressing. Text files, code, and documents shrink significantly (often 70 to 90% smaller). Images, videos, and already-compressed files (like JPEGs or MP3s) barely shrink because they're already compressed. This tool uses maximum compression for best results.

Product files on Kurodyne are delivered as a single ZIP. This keeps all files together, allows buyers to check that a download matches the package record with the File Verifier, and compression makes downloads faster for everyone.

Yes. There are no watermarks and no signup is required. We built this for Kurodyne sellers to package their products, but anyone can use it.

Yes. Your files never leave your device. Everything runs in your browser using your computer's processing power. No upload, no signup required.