ZIP Maker & Extractor
Create a ZIP from your files, or unpack and peek inside any .zip, .jar or .docx — 100% in your browser, no upload
Drop files here, or click to choose (multiple)
🔒 Archives are created and unpacked entirely in your browser — your files are never uploaded. A .jar, .docx or .xlsx is just a ZIP, so you can peek inside those too.
Zip and unzip entirely in your browser
ZipTool bundles any set of files into a single ZIP you can download, named after the first file in the list (photo.jpg becomes photo-archive.zip), and unpacks an existing ZIP so you can grab individual files out of it. Drag several files into Create mode and save them as one archive, or drop a ZIP into Extract mode to list every entry with its size and download the ones you need. Nothing is uploaded — the archive is built and read locally with the fflate library, so even confidential files never leave your device.
Peek inside a .docx, .jar, .xlsx or .apk
Many everyday file types are secretly ZIP archives: Word .docx, Excel .xlsx, PowerPoint .pptx, Java .jar and .war, EPUB books and Android .apk packages all use the ZIP container. Open one in Extract mode to see its internal structure, such as word/document.xml and [Content_Types].xml, and pull out any part without special software.
Frequently asked questions
Are my files uploaded to a server?
No. Both zipping and unzipping run entirely in your browser with the fflate library, so your files never leave your device — there is no server and nothing is stored.
Can it open .jar, .docx or .xlsx files?
Yes. Those formats are ZIP archives under the hood, so you can drop them into Extract mode and browse or download the files inside, such as the XML parts of a Word or Excel document.
Does it compress the files?
Yes. Entries use the standard ZIP DEFLATE method, so text, code and documents shrink while already-compressed formats like JPEG or MP4 stay about the same size. The result opens in Windows Explorer, macOS Finder, 7-Zip and every other ZIP tool.