You've probably hit "Windows can't complete the extraction" or "the path is too long" at some point, or received a RAR or 7Z file and realized your computer can't open it without installing something extra. Dagochim's unzip tool opens a wide range of archive formats directly in your browser, no software to install.
Which formats are supported
- ZIP: the most common format. Both the older ZipCrypto password method and the stronger WinZip AES method are supported.
- RAR, 7Z: formats that Windows and Mac don't open natively (or only partially support) — this tool opens them directly.
- TAR, GZ, TGZ: common on Linux and Mac. These even work when the page is opened over
file://with no internet connection. - EGG, ALZ: Korean-market archive formats (made by apps like Bandizip and ALZip), detected automatically by file signature.
- BZ2, XZ and a few other compression formats are also supported.
How to unzip a file with Dagochim
- Open the Unzip & Zip Files tool.
- Drag your archive in, or click to choose it.
- A file list appears. You don't have to extract everything — check only the files you actually need and download just those.
- Images, audio, video and text files can be previewed by clicking them in the list, without extracting anything first.
- If the archive needs a password, a password field appears. Enter the password you already know to unlock it.
- Download the files you selected individually, or re-pack everything into a fresh ZIP.
Why not just use Windows or Mac's built-in tools?
Windows 11 (version 23H2 and later) added native support for opening RAR, 7Z, TAR and several other formats directly in File Explorer, thanks to the open-source libarchive project. That's a big improvement over older Windows versions, which only understood ZIP out of the box. But there are still real gaps: native support does not include password-protected archives — if a RAR or 7Z file needs a password, File Explorer's built-in extraction fails with no way to enter one. It also doesn't recognize Korean formats like EGG or ALZ at all. And if you're still on Windows 10, or haven't installed the update that added this feature, ZIP remains the only format Explorer opens natively.
macOS's built-in Archive Utility opens ZIP, TAR and GZIP archives with a simple double-click, but it does not open RAR files on its own. You can technically extract a RAR from Terminal using a command like tar -xf yourfile.rar (which relies on the same libarchive library under the hood), but that's a clunky workaround for anyone who isn't comfortable with the command line.
In short: if RAR, 7Z, EGG or ALZ files come your way with any regularity, a tool that handles all of them in one place — like this one — is a lot more convenient than relying on what your OS ships with.
When archive filenames look like garbage text
Older ZIP files, particularly ones created by Korean compression tools, often store filenames using an older encoding called EUC-KR (CP949) rather than the now-universal UTF-8. If you open one of those files with software that assumes UTF-8, non-English filenames render as scrambled, unreadable characters. Dagochim's unzip tool automatically detects which encoding a given archive used and displays filenames correctly either way, without you having to do anything.
Re-packing files into a new archive
This tool isn't just for extracting — you can also select multiple files and bundle them into a brand-new ZIP. Filenames in the new archive are saved using UTF-8, so non-English characters stay intact no matter what software opens it afterward, on any operating system.
Is my data safe?
Yes. Your archive is never uploaded to a server — everything happens inside this browser tab. The tool also only reads the specific byte ranges it needs from the file (using the browser's File.slice API) rather than loading the entire archive into memory at once, so even a large archive's file list appears quickly without stalling your browser.
Common problems and fixes
- Extraction fails with an error: the file may have been interrupted mid-download or corrupted in transit. Re-download it and try again.
- "The path is too long": this is a classic Windows File Explorer error caused by its roughly 260-character path length limit, which shows up often with archives that have deeply nested folders. Dagochim's tool has no such limit, so these archives extract without issue.
- Windows says it doesn't recognize an EGG or ALZ file: without a dedicated Korean archive app installed, Windows treats these as an unknown file type. This tool opens them with no extra software needed.
- Forgot the password: this tool never attempts to guess or crack a password — only an already-known password can be used to unlock an archive. There's no workaround built in, by design.
Previewing without fully extracting
One underrated feature: you don't have to extract an entire archive just to check what's inside. Click any image, audio, video, or text file in the listing and it opens in a preview pane immediately, reading only the bytes needed for that one file. This is especially handy for large archives where you just want to confirm the contents before committing to a full download, or when you're hunting for one specific file inside a big folder structure without extracting everything else along with it.
Frequently asked questions
Can I open a password-protected ZIP?
Yes, if you know the password. Both the older ZipCrypto method and the stronger WinZip AES method are supported. This tool never guesses or cracks an unknown password.
Why do filenames inside an archive look like garbled text?
Older archive tools, especially Korean ones, saved filenames using an older encoding called EUC-KR (CP949) instead of UTF-8. This tool automatically detects that encoding so non-English filenames display correctly instead of as garbled characters.
Does this support RAR and 7Z too?
Yes, RAR, 7Z, TAR, GZ, BZ2 and XZ are all supported. These formats need an https connection to work; if you're opening the page over file://, only ZIP, TAR and GZ will work.