RAR is the one common archive format your computer can't open by itself. Windows 11 added native RAR support in 2023, but older Windows, many corporate machines, and Chromebooks still draw a blank — and the usual answer, "install WinRAR or 7-Zip", isn't always possible or worth it for one file.
Extract It in the Browser Instead
- Open the RAR extractor
- Drop in the .rar file
- Click Extract — each file inside downloads to your Downloads folder
Your browser may ask permission to download multiple files; allow it once and the rest follow automatically.
How This Works (and Why It's Private)
The extraction is done by libarchive — the same battle-tested library behind many desktop tools — compiled to WebAssembly and running inside your browser tab. The archive is never uploaded: there's no server doing the work, no queue, and no "free tier" size limit. It also means a sketchy RAR from an email attachment never touches anyone's infrastructure but stays sandboxed in your browser while you see what's inside.
Limitations Worth Knowing
- Password-protected archives aren't supported. Encrypted RARs need desktop software like 7-Zip.
- Very large archives depend on your device's memory, since everything happens locally.
- Folder structures are flattened — files download individually with safe filenames.
Other Archive Formats
The same in-browser engine handles the rest of the alphabet soup: 7Z, TAR, GZ, and of course ZIP. Need to go the other way? Create a ZIP from any files, also without uploading.