DEB to JAR Converter
Processing entirely on your device — large files may take a moment.
Repack a JAR as ZIP to inspect classes and resources with any unzip tool. If your files are still in DEB format, this page is the shortcut: DEB is the Debian/Ubuntu package format: an ar archive whose members are control metadata plus data.tar.* holding the actual payload.
iLoveConverter processes everything locally on your computer, which makes it private and fast: no upload wait, no server storage, no limits. Add as many files as you like — batch conversion is built in.
How to convert DEB to JAR
- 1
Select your files
Drag & drop your DEB files onto the area above, or click to browse. You can add multiple files at once for batch conversion.
- 2
Convert instantly
Click "Convert to JAR". The conversion runs entirely inside your browser using WebAssembly — no upload, no queue, no waiting.
- 3
Download results
Download each converted JAR file individually, or grab everything at once as a ZIP archive.
About the DEB format
A .deb file is literally an ar archive (the Unix librarian format from 1971) containing three members: debian-binary, control.tar.* and data.tar.* — the last one holds every file the package installs. That transparency is why .deb extraction is the standard way to audit what a package will do to your system.
7-Zip parses the ar container and unpacks the inner tar automatically, so a browser can list and repackage the payload without ever touching a Linux shell.
+ Strengths
- ✓Transparent, auditable package structure
- ✓Standard across Debian, Ubuntu and derivatives
- ✓Inner tar is trivially repackaged
! Limitations
- −Meaningless outside dpkg-based systems
- −data.tar may use xz/zst compression variants
- −No cross-platform installer equivalent
About the JAR format
A JAR is a ZIP with Java manners: class files, a MANIFEST.MF, resources and optional signatures. Any tool that opens ZIPs can open it — but converting to a plain ZIP strips the “is this executable?” ambiguity and makes browsing the contents painless.
Useful for auditing dependencies, extracting embedded resources, or checking what a library actually ships before adding it to a build.
+ Strengths
- ✓Standard Java delivery format
- ✓ZIP-based, tools abound
- ✓May carry signatures and manifests
! Limitations
- −Not a installer — just a package
- −Contents are class files, not source
Why convert DEB to JAR?
There is a concrete reason this conversion exists: Meaningless outside dpkg-based systems JAR sidesteps that — Standard Java delivery format If that is your situation, the tool above settles it in seconds, entirely on your device.
Frequently asked questions
Is this DEB to JAR converter really free?
Yes — completely free, with no sign-up, no watermark and no daily conversion limits. The site is supported by advertising.
Are my files uploaded to a server?
No. The conversion runs entirely inside your browser using WebAssembly, so your files never leave your device — that is what makes it instant and private.
Does it work on Windows, Mac, iPhone and Android?
Yes. Anything with a modern browser works: Windows, macOS, Linux, Android and iOS. No software installation is required.
Is there a file size limit for DEB to JAR?
The only limit is your device's memory, since nothing is uploaded. Files up to a few hundred megabytes work fine on a modern desktop browser; very large files simply take a little longer.
Is there a size limit for archive conversion?
There is no upload cap because nothing is uploaded — the practical limit is your device memory. A few hundred megabytes of unpacked content works comfortably on a modern computer.
Are the files inside my DEB archive modified?
No. Contents are unpacked in memory and repacked into JAR byte-for-byte — the conversion changes the container, never the files inside it.