CAB to GZ Converter
Processing entirely on your device — large files may take a moment.
Unpack a .gz into a normal file or repack it as ZIP/TAR when the receiving tool does not understand gzip. If your files are still in CAB format, this page is the shortcut: CAB is Microsoft's installer cabinet format — drivers, Windows updates and legacy installers arrive as CAB files.
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 CAB compares to GZ
| CAB | GZ | |
|---|---|---|
| Compression | MSZIP / LZX | DEFLATE |
| Bundling | Multi-file with folders | Single file |
| Best for | Drivers and Windows updates | Logs, dumps, datasets |
How to convert CAB to GZ
- 1
Select your files
Select your CAB file.
- 2
Convert instantly
The file bytes are gzip-compressed in place — the same archive your server or build tool produces, made locally.
- 3
Download results
Download the .gz file — ready to upload, serve or attach.
About the CAB format
CAB (Cabinet) is Microsoft's own archive format, built for software distribution: Windows update packages, device drivers and legacy installers arrive as CAB files. It supports MSZIP, Quantum and LZX compression, and Windows Explorer actually opens it — on Windows.
Everywhere else it is a locked box. Converting CAB to ZIP makes driver payloads and update contents readable on macOS, Linux and phones — useful when you need a driver file on a machine that cannot run the installer.
+Strengths
- ✓Native to Windows software distribution
- ✓Efficient LZX compression for its era
!Limitations
- −Windows-centric — opaque elsewhere
- −No encryption or recovery features
About the GZ format
A .gz file is one file squeezed by gzip — not an archive. kernel.org tarballs are “tar inside gz”, but plenty of logs, JSON dumps and CSV exports travel as plain .gz. Opening one means decompressing it back to the original bytes.
Repacking into ZIP or TAR gives the decompressed file a container that every GUI tool opens without a second thought.
+Strengths
- ✓Everywhere on Linux and macOS
- ✓Fast, well-understood compression
- ✓Streams natively from any tool
!Limitations
- −Single file only — no directory tree
- −No encryption or integrity metadata
Why convert CAB to GZ?
Think of it as moving your file to the container that fits the job. Windows-centric — opaque elsewhere GZ works differently: Everywhere on Linux and macOS If any of that sounds like your task, run the conversion — it takes seconds and nothing leaves your device.
Frequently asked questions
Is this CAB to GZ 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 CAB to GZ?
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.
What about folders and directory structure?
The full directory tree is preserved: folders stay folders, and deep paths arrive exactly as they were packed in the CAB file.
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.