Create ZIP File
Bundle files into one ZIP on your device. Nothing is uploaded.
Drop any files here
or select files from your device
Files are processed on this device. Nothing is uploaded.
How to use Create ZIP File
- Add the files you want to bundle. You can add more at any time.
- Name the archive and choose a compression level.
- Select Create ZIP and download the archive.
How it works
A ZIP archive packs many files into one and compresses each with the DEFLATE method, which every operating system can open without extra software. How much space you save depends on the content: text, spreadsheets, CSV and code often shrink by 60–90%, while photos (JPG), videos, PDFs and Office documents are already compressed and barely change. The result tells you the real saving.
Files are read and written by your browser on your device. Nothing is uploaded, so there is no size limit set by us and no copy of your data anywhere else. That makes it suitable for documents you would not want to hand to an upload service.
Files with the same name are kept by adding a number to the later ones. File dates are preserved.
Example
Twelve CSV exports totalling 48 MB zip to roughly 6 MB at normal compression, small enough to attach to an e-mail.
Frequently asked questions
Why did my ZIP not get smaller?
Photos, videos, music, PDFs and Office files are already compressed, so zipping them only bundles them. Text-like files shrink a lot.
Can I add a password to the ZIP?
Not here. For a confidential PDF, use Protect PDF, which encrypts with AES-256.
How large can the ZIP be?
Up to about 1.5 GB of files in total, because the archive is built in your device’s memory. Phones have less room than computers.
Can I zip a folder?
Drop the files from the folder. On computers you can select all files inside a folder at once.
Limitations
- No password protection or encryption.
- About 1.5 GB in total, limited by browser memory.
- Folder structure is kept only when the browser provides it; otherwise files are placed at the top level.
Last reviewed November 9, 2026. How we build and test tools.