Create a ZIP
Bundle several files into one ZIP archive without uploading them.
About this tool
Add files, rename them if you want, and download a single ZIP. Compression uses the browser's own deflate implementation, so archives open in Windows Explorer, macOS Finder, 7-Zip and everything else that reads ZIP files.
The files are never uploaded. Most online ZIP tools send your files to a server to do the work, which is an odd trade for an operation your own machine can do instantly.
What compresses and what does not
ZIP compression finds repetition. That makes it excellent on some things and pointless on others:
- Shrinks a lot โ text, CSV, JSON, XML, source code, logs, BMP and uncompressed audio. Reductions of 70โ90% are common.
- Barely shrinks โ JPEG, PNG, GIF, MP3, MP4, PDF and anything already compressed. There is little repetition left to find.
Each file is stored uncompressed when compressing it would make it larger, which is standard ZIP behaviour. Bundling already-compressed files is still useful โ it just does it for the convenience of one file rather than for the size.
Frequently asked questions
How do I create a ZIP file without software?
Add your files here and press Create ZIP. The archive is built in your browser and saved to your device โ no installation and no upload.
Are my files uploaded to a server?
No. Everything happens locally, which is worth knowing given most online ZIP tools upload your files to do the work.
Why is my ZIP barely smaller than the files?
Because the files are probably already compressed. JPEG, PNG, MP4, MP3 and PDF have little repetition left to squeeze, so zipping them bundles rather than shrinks.
Can I put files in folders inside the archive?
Yes โ edit a file's name and include a forward slash, like reports/january.csv, and it will sit in that folder when the archive is opened.
Will the archive open on Windows and Mac?
Yes. It is a standard ZIP, so Windows Explorer, macOS Finder, 7-Zip and everything else will open it normally.