ZIP Creator
Select multiple files and pack them into a single ZIP archive — compressed entirely in your browser, nothing uploaded anywhere.
Drop files here, browse
Any file type · drag-and-drop or browse · files are added to the list
Max file size: 100 MB · Multiple files supported
Browser-Based ZIP Creation
Files are read locally and compressed using JSZip entirely inside your browser. Nothing is sent to any server at any point.
DEFLATE Compression
All files are compressed using the DEFLATE algorithm (compression level 6) — the same standard used by most ZIP tools and operating systems.
Best for Small to Medium Batches
This tool is ideal for small to medium file batches. Very large files or huge batches may be slow or fail on mobile because your device handles all the compression work.
How to create a ZIP file online
- Drop or click to select any files you want to ZIP. You can add multiple files from different locations.
- Remove any files you do not want using the × button next to each file.
- Optionally change the output filename from the default
convertforge-files.zip. - Click Create ZIP. ConvertForge compresses your files locally using DEFLATE compression.
- Click Download ZIP to save the archive to your device.
Privacy — processed in your browser
This zip creator runs entirely in your browser. Your files are read locally and compressed using JSZip — nothing is sent to any server, no files are uploaded, and no data is stored or logged. You can safely compress private documents, photos, code, or any sensitive files. This tool creates ZIP files locally in your browser. Very large files or huge batches may be slow or fail on mobile because your device handles the work.
Frequently Asked Questions
Does this upload my files?
No. This browser-based zip creator reads and compresses your files entirely inside your browser using JavaScript. Your files never leave your device, are never sent to any server, and are never logged or stored. You can create ZIP files from private or sensitive documents without any risk of data exposure.
How do I create a ZIP file online?
Drop your files into the drop zone or click to browse and select them. You can add files from any location on your device. Once you have selected all the files you want to compress, click Create ZIP. The browser compresses them and shows a Download ZIP button when the archive is ready. The whole process happens locally without any upload or internet connection to a processing server.
Can I ZIP multiple files at once?
Yes. You can select or drop as many files as you want. The drop zone accepts multiple files at once, and you can add files in multiple rounds — they accumulate in the list. Use the × button next to any file to remove it before creating the archive.
Are there file-size limits?
There is no hard file-size limit, but very large files or large batches may be slow or fail on devices with limited memory — especially mobile browsers. For best results, this zip file maker is ideal for batches under 200 MB total. For very large archives, consider using a native application like 7-Zip or the built-in ZIP tool on your operating system.
Does this work on mobile?
Yes, for small to medium file batches. Mobile browsers can run this online ZIP creator just like a desktop browser. However, mobile devices have less memory, so very large files may cause the browser to slow down or run out of memory. For large archives on mobile, a native app is more reliable.