OpenAnyFile
Works
Viewing, inspecting and verifying. You get a browsable listing of everything inside, decompressed in-browser by libarchive compiled to WebAssembly. File details, exact byte size and the detected signature are always shown.
How to open a .deb file
You have a DEB file and nothing on your machine will touch it. Here is what the format actually is, and how to read one in about four seconds without installing anything.
What is a .deb file?
Debian Package is an archive format developed by Debian Project, first appearing in 1993. It is normally produced by Debian, Ubuntu, Mint.
An `ar` archive containing control.tar and data.tar. You can list every file a package will install before installing it.
| Full name | Debian Package |
|---|---|
| File category | Archives |
| MIME type | application/vnd.debian.binary-package |
| Magic bytes (file signature) | 21 3C 61 72 63 68 3E (!<arch>) |
| Developer | Debian Project |
| Introduced | 1993 |
| Usually created by | Debian, Ubuntu, Mint |
| OpenAnyFile engine | libarchive WASM engine |
| Opens without upload | Yes — parsed locally in your browser |
Open a .deb file in your browser
OpenAnyFile routes .deb to its libarchive WASM engine, which opens a browsable listing of everything inside, decompressed in-browser by libarchive compiled to WebAssembly.
- Open the OpenAnyFile opener in this browser — nothing to download or sign up for.
- Drag your .deb file onto the drop zone, click to browse for it, or paste it with Ctrl+V.
- The extension is detected and the file is handed to the libarchive WASM engine.
- Your DEB opens on its own viewer page: a browsable listing of everything inside, decompressed in-browser by libarchive compiled to WebAssembly.
- Use fullscreen for a closer look, or download the file back out unchanged. Free, and free in the sense that there is no paid tier waiting behind step three.
What you can and cannot do with it here
Does not work
Editing and re-saving. OpenAnyFile is a reader, not an editor — for changes you still need special software or an equivalent.
Why your {ext} file is never uploaded
Most online viewers work by sending your file to their server, processing it there, and leaving a copy behind on infrastructure you do not control. OpenAnyFile does not. Your .deb file is read through the browser's local File API and decoded by JavaScript and WebAssembly running on your own machine. There is no upload step and no server-side copy — open your browser's network tab while you do it and watch: the file never appears.
Frequently asked questions about DEB files
Can I open a .deb file without installing special software?
Yes. OpenAnyFile's libarchive WASM engine runs in your browser, so you can read a DEB file with nothing installed. You get a browsable listing of everything inside, decompressed in-browser by libarchive compiled to WebAssembly. For full editing you still need the original application — this is a viewer, not an editor.
How can I check a file really is a DEB file?
Look at the first bytes rather than the extension. A genuine DEB begins with 21 3C 61 72 63 68 3E (!
Is it safe to open a DEB file online?
With OpenAnyFile, yes, because nothing is uploaded. The file is read locally through your browser's File API and never leaves your device, so there is no server copy to leak, log or retain. That matters most for the kind of file people are least willing to hand to a random converter site.
What is a .deb file, exactly?
Debian Package — an application/vnd.debian.binary-package format created by Debian Project since 1993. An `ar` archive containing control.tar and data.tar. You can list every file a package will install before installing it.
Does the same viewer handle formats related to DEB?
Yes — the same engine also opens .7z, .iso, .rar, so you can compare related files without switching tools.
Related formats
These open with the same engine, so if you have one of these sitting next to your .deb file, it will open too: