Open RAR, ZIP and 7z
Open and extract RAR, ZIP, 7z and TAR.GZ files in your browser, with no install and no upload.
The archive is opened in this browser with libarchive (WebAssembly). It isn't sent to any server and you don't need to install anything.
How do you open a RAR, ZIP or 7z file without installing anything?
To open a RAR, ZIP, 7z or TAR.GZ file without installing anything, drop it on this page: Docuboxer unpacks it in your browser and shows the contents as a folder tree. It handles RAR4 and RAR5, ZIP (including password-protected ones), 7z, TAR, GZ, BZ2 and XZ. You can preview text and images, download a single file, or grab a selection as a fresh ZIP. It is free, needs no signup, and the archive never leaves your device, which matters when it holds a backup, a contract or personal photos. For safety, the tool reads the sizes the archive declares and stops obvious decompression bombs before extracting, warns about dangerous paths containing "../", and normalizes file names when you download. It also shows the SHA-256 fingerprint of every file you preview, so you can check it is identical to the original.
How to use Open RAR, ZIP and 7z
- Drag the archive (.rar, .zip, .7z, .tar.gz...) onto the upload area or click to choose it. It opens instantly and is not sent to any server.
- If it is protected, type the password in the field that appears and try again. A wrong password breaks nothing: you can try another one.
- Browse the tree, expand folders, and press "View" on a file to preview it (text or image) and see its SHA-256 fingerprint.
- Download the file you need, or tick several and press "Download selection as ZIP" to take only what you want in a new ZIP.
- If the suspicious-paths warning appears, check the archive with the File Inspector before extracting it in another program.
Common use cases
A .rar a vendor or client sent you
Windows can't open RAR without extra software, and phones can't either. Open it here from any browser, pull out the PDF or spreadsheet you need, and skip the installer.
A backup or export with thousands of files
Browse the tree without extracting everything, find the one folder or document you want, and download only that. No need to unpack the whole backup to recover one invoice.
A password-protected archive that isn't yours
A colleague emailed you an encrypted ZIP. Type the password in your browser, without sending the archive or the password to an outside service, and download what is inside.
An attachment you don't trust enough to open
Seeing the file list, sizes and paths before downloading anything helps you spot a disguised executable, a decompression bomb or a path trying to write outside its folder.
Checking that a download is intact
Preview a file and compare its SHA-256 with the one the software author publishes. If they match, that file is identical to the original.
Frequently asked questions
How do I open a RAR file online without WinRAR?
Drop the .rar on this page and it opens in your browser, with no WinRAR or 7-Zip to install. It supports RAR4 and RAR5, lists the contents and lets you download each file. Password-protected RAR files, however, can't be opened here: the engine can't decrypt them, and the tool tells you so with a notice.
Is my file uploaded to a server?
No. Decompression uses libarchive compiled to WebAssembly and runs in a worker inside your browser. You can verify it in the Network tab of your developer tools: no request carries the contents of your file.
Which formats can I open?
ZIP, RAR (versions 4 and 5), 7z, TAR and the GZ, BZ2 and XZ compressed formats, including .tar.gz and .tgz. It does not open disk images or incomplete multi-volume archives (a .part1.rar without the other parts).
Does it work with password-protected archives?
It is tested with ZIP files encrypted with the classic ZipCrypto method: you type the password in the browser and it is used only to extract. With AES-encrypted ZIP files and encrypted 7z archives nothing is guaranteed: they may open or fail, and we haven't verified them. Password-protected RAR files are not supported and the tool says so. It doesn't guess or crack passwords either: if you don't know it, the archive can't be opened.
Is there a size limit?
The archive can be up to 500 MB, each file inside up to 256 MB, and what you extract at once (for example a selection for the ZIP) up to 512 MB. These caps come from browser memory, not from the tool. If an archive declares more content than fits or expands suspiciously, it is stopped with a message before extracting.
What is a decompression bomb and how am I protected?
It is a tiny archive that expands into gigabytes and freezes the machine. The tool first reads the sizes the archive declares and the compression ratio, and if something doesn't add up, it stops before extracting. Those figures are written by whoever made the archive, so they are no guarantee: if an entry declares less than it holds, extraction is truncated at the declared size instead of growing without limit. A compressed tar (.tar.gz, .tar.xz, .tar.bz2) has no reliable sizes to read: the stream has to be decompressed to list it, and if that takes more than 20 seconds it is cancelled and the process is closed.