Upload a .zip archive, see what's inside, and download only the files you need. Up to 2 GB.
Most computers can open ZIPs — until you're on a locked-down office machine, a Chromebook, a tablet, or facing a ZIP that your system refuses to touch. Unzip.Cool extracts it in the browser over HTTPS: upload, preview the contents, download what you need. Password-protected ZIPs are supported, and every upload is deleted automatically after one hour.
Unpacking a 400-file ZIP to reach one PDF leaves a mess in your Downloads folder. Here the contents are listed first, so you download the single file you came for and leave the rest behind.
The single most common cause. A partial ZIP has no readable index at the end of the file, so every tool reports it as corrupt. Compare the size with what you expected and download it again.
ZIP has two encryption schemes. The old ZipCrypto is supported almost everywhere. The newer AES-256, written by WinZip and 7-Zip, is stronger but not universally readable — Windows Explorer in particular cannot open it at all, which is why a password-protected ZIP can fail on one machine and open on another.
Those are the limits of the original ZIP specification. Larger archives use the ZIP64 extension, which older software silently fails to read.
ZIP has no reliable way to declare which character encoding file names use. An archive made on a Chinese or Japanese Windows machine and opened on a Mac frequently produces mojibake. The files themselves are intact — only their names are being misread.
ZIPs created on a Mac often contain a __MACOSX folder and files starting with
._. They hold Finder metadata, they are meaningless on Windows, and deleting them is
entirely safe.
Drag the .zip onto the box above, let it extract, then download the files you want — all over HTTPS.
Yes — standard encrypted ZIP files are supported; you'll be asked for the password. (A small minority of AES-encrypted ZIPs may not be supported.)
Handy when you're on a locked-down work machine, a tablet or phone, or when a ZIP refuses to open locally. Nothing to install and nothing left behind — uploads auto-delete in an hour.
Free, no sign-up, archives up to 2 GB.
Other formats: RAR · RAR on Mac · 7Z