Create ZIP File - Compress Files to ZIP Online
Compress multiple files into a downloadable ZIP archive. Drag and drop files, pick a compression level, and see how much space you saved.
Build a ZIP archive from any set of files without installing desktop software. Drag files into the page or pick them with a file dialog, choose between Store, Fast, and Best compression, name the archive, and download it. The tool reports the final ZIP size and the percentage saved compared to the originals.
Create ZIP File bundles any number of files into a single ZIP archive directly in your browser. Add files by dragging them onto the drop zone or by clicking it to open a file picker. Each file appears in a list with its name and size, a running total shows how large the batch is, and any file can be removed before packing. If two files share a name, the second one is automatically renamed with a numeric suffix (for example report.pdf and report (1).pdf) so nothing gets overwritten inside the archive.
Three compression presets cover the common tradeoffs. Store writes files without compression, which is fastest and the right choice for content that is already compressed, such as JPEG photos, MP4 video, or other ZIP files. Fast applies DEFLATE at level 3 for a quick balance, and Best applies level 9 to squeeze text, CSV, JSON, logs, and source code as small as they will go. After packing, the tool shows the final archive size next to the original total and the percentage saved, so you can compare presets on your actual data.
The archive uses the standard ZIP format with DEFLATE compression, so it opens with the built-in extractors on Windows, macOS, and Linux as well as tools like 7-Zip and WinRAR. The output filename defaults to archive.zip and can be changed before download.
- 1
Add your files
Drag files onto the drop zone or click it to open a file picker. Each file is listed with its size, and duplicates are renamed automatically.
- 2
Choose compression and filename
Pick Store, Fast, or Best compression depending on your content, and edit the output filename if you want something other than archive.zip.
- 3
Create and download
Click Create & Download ZIP. The archive is packed in your browser and saved to your downloads folder, with the final size and percent saved shown below.
Email attachments
Pack a dozen invoices or screenshots into one ZIP so they attach as a single file instead of cluttering an email with separate attachments.
Sharing project files
Bundle source files, configs, and a README into one archive before sending it over Slack or uploading it to an issue tracker.
Shrinking text-heavy data
Compress CSV exports, log files, or JSON dumps at the Best level, where DEFLATE often cuts size by 70 percent or more.
Organizing downloads
Collect related files scattered across your downloads folder into a single named archive for storage or backup.
Are my files uploaded to a server?
No. The ZIP is assembled entirely in your browser using JavaScript. Files never leave your device, and there is no server that receives or stores them.
Which compression level should I pick?
Use Best (level 9) for text, code, CSV, and logs. Use Store for files that are already compressed, like JPEG, PNG, MP4, or existing archives, since recompressing them wastes time and can even add a little overhead.
Is there a file size limit?
There is no hard limit in the tool, but everything is processed in browser memory. Batches up to a few hundred megabytes work fine on a typical machine; multi-gigabyte sets may slow down or fail depending on available RAM.
What happens if I add two files with the same name?
The second file is kept and renamed with a numeric suffix, for example photo.jpg becomes photo (1).jpg. Both files end up in the archive, nothing is silently replaced.
Can other people open the ZIP without special software?
Yes. The output is a standard ZIP file using DEFLATE compression, supported natively by Windows Explorer, macOS Finder, and every common archive utility on Linux and mobile.