ZIP Creator — Free Browser ZIP Builder
Drop any files (or whole folders), get a single .zip download. Optional password-protection (AES-256). Files never leave your device.
How to create a ZIP file in your browser
- Drop files or folders. Drag files or folders into the upload area. Folder structure is preserved inside the ZIP.
- Set compression level. Pick Fast (low compression), Standard (balanced), or Maximum (slowest, smallest ZIP).
- Optional: add password. Toggle password protection. AES-256 encryption — same as 7-Zip / WinRAR.
- Download. Click Create. ZIP builds in your browser and downloads directly. No upload, no temp file on a server.
Frequently Asked Questions
- Are my files uploaded?
- No. ZIP creation runs entirely in your browser. Files never leave your device.
- Is there a size limit?
- No hard limit. Browser memory caps it — typically a few GB works fine on modern laptops.
- Can I password-protect?
- Yes. Toggle password protection. Uses AES-256 encryption (industry standard, accepted by 7-Zip / WinRAR / macOS Archive Utility).
- Does it preserve folder structure?
- Yes. Drop a folder and its hierarchy is preserved inside the ZIP.
- How much will compression shrink files?
- Text files compress 60–90%. Already-compressed files (photos, videos, MP3s) compress only a few percent.
- Does it work on mobile?
- Yes on iOS Safari 14+ and Android Chrome. Touch-friendly drop zone.
Use Cases
- Bundle multiple files into one email attachment
- Create a password-protected archive of sensitive files
- Package a project folder for sharing
- ZIP a folder of photos before uploading
- Reduce upload size by compressing text/log files