Opens any common archive and lists what is inside. Take a single file out, or the whole thing as a ZIP. Useful when you need one document from a large archive and do not want to unpack all of it — and when installing an extractor is not an option.
Taking one file out of many
The full set is also offered as a ZIP, which is what you want when the answer turns out to be "all of it".
What it reads
.tar.gz, .tgz, .tar.bz2, .tar.xz — are unwrapped through both layers.
The format is worked out from the file's own bytes rather than its extension, which matters more here than anywhere else on this site: .cbr files are frequently ZIPs, and archives downloaded through a browser are sometimes an HTML error page with an archive's name.
Paths inside archives are not trusted
../../.ssh/authorized_keys. Extractors that join that onto a destination folder write outside it, which is a real and long-standing class of attack.
Nothing here writes to your disk, so the archive cannot reach anything on your machine. But the ZIP produced would carry the traversal onward to whatever unpacks it next, so entries with escaping paths are dropped and named in the result rather than passed along.
The same reasoning is behind the ceilings on entry count and unpacked size: an archive that expands to a hundred times its size is a decompression bomb, and stopping is the correct response.
What is kept and what is not
The folder structure is kept, including nesting. Files are written back under the same paths they had inside.
What does not survive the change of container is everything Unix-specific: file permissions, ownership, and the executable bit. ZIP can store some of that and most Windows tools ignore it, so relying on it would be worse than saying plainly that it is gone. Symbolic links are skipped rather than turned into broken files, and you are told which ones.
Other names for this
Also searched as “open rar”, “unzip online”, “extract 7z”, “unrar online”, “open archive”.
Questions
- Is my archive uploaded?
- No. It is opened and repacked inside this tab. An archive is usually the whole of something — a project, a case file, a set of photographs — so uploading one to a converter hands over all of it at once. Turn your Wi-Fi off before you start and this still works.
- Can I get just one file?
- Yes — every file inside is listed and downloadable on its own. The first 500 are shown; beyond that, take the ZIP.
- Can it open password-protected archives?
- Yes — enter the password in the options. Encrypted entries are otherwise skipped and you are told how many. The password is used here and never sent anywhere, which is the whole argument for a local tool: uploading an encrypted archive together with its password to a stranger’s server defeats the encryption entirely.
- Does it open ISO disc images?
- Yes, for ordinary data discs. A bootable or multi-session image may have structure that does not survive being flattened into a ZIP.
- Is there a size limit?
- Your device’s memory, and a deliberate ceiling of 2 GB unpacked and 20,000 files. Those are not commercial limits — they are the point past which a browser tab stops being the right tool, and past which the file is more likely to be a decompression bomb than a real archive.