Open a .rar
Drop the file below. We read it in your tab using a WebAssembly build of libarchive, so it doesn't upload. Old v4, current v5, password-protected, split into parts — all fine.
drop your .rar here
or click to browse. v4 or v5, encrypted ok. Split into parts? Drop all the .partN.rar files at once.
01.A bit about .rar
RAR has been around since 1993. Its compression edges out zip on most stuff, which is why big releases (games, datasets, the occasional pirated TV season) keep using it. The catch: the format is closed, and the one official tool to make new ones costs money or runs in perpetual trial mode. Reading them, though, is well-understood and supported by libarchive.
v4 vs v5
If your file is from before about 2013, it's probably v4. After that, v5. The difference matters to the library, not to you. The page reads the header and picks the right path automatically.
Passwords
Two flavors. With the common kind, you can see the file list but not the contents. With the stronger kind (header encryption), even the file list is locked — you'll see "password required to list contents" until you type the password and try again.
Either way, type it in the password field, then click Open Archive. The password is used to decrypt locally and that's it. We don't have anywhere to send it.
Split into parts (.part1.rar, .part2.rar…)
This used to be a hassle — you'd have to rejoin them with a desktop tool first. Now you can just select all the .partN.rar files together (shift-click in the picker, or drop them as a group) and the page handles the rest. It sorts them naturally, so part10.rar doesn't end up before part2.rar, and joins them in memory before unpacking.
vs. the upload-and-wait sites
Most "extract rar online" sites are a roundtrip: you send the file, sit in a queue, then download the result. That's a copy of your file on someone else's server, however briefly. Here it doesn't go anywhere. You can verify that pretty easily — load this page, then go offline. It still opens archives.