CAB to ZIP Converter
Convert Microsoft Cabinet (.cab) archives to ZIP format. Free, private, no data stored.
Complete the security check to begin
Open Windows Cabinet archives anywhere
Got a .cab file from a driver package, Windows update, or old installer? Convert it to ZIP to inspect and extract its contents on any operating system.
- Full CAB support - handles MSZIP and LZX-compressed cabinets
- All files preserved - directory structure stays intact
- Security validated - path traversal, symlink, and bomb protection built in
About Converting CAB to ZIP
CAB (Cabinet) is Microsoft’s compressed archive format, used mainly inside Windows installers, driver packages, and system updates. It supports the MSZIP and LZX compression methods but is rarely used for everyday files. When you need to move away from CAB, the usual reason is simple: poor support outside windows.
Converting your CAB archive to ZIP solves that. ZIP is the universal archive format that bundles and compresses multiple files into one. Every operating system opens ZIP natively, making it the default for sharing file collections. In practice you gain opens natively on every os and good general-purpose compression. PrivConvert runs the whole CAB-to-ZIP conversion in server memory and deletes your file the instant the ZIP is ready — nothing is stored, logged or reused.
When this conversion helps
- You need opens natively on every OS
- You need good general-purpose compression
- You need optional password protection
- Escaping a proprietary CAB file for the open ZIP standard
- Sharing a CAB archive with someone whose software expects ZIP
Tips for best results
- ZIP preserves quality exactly, so the conversion from CAB will not introduce any new compression artifacts.
- Files up to 250 MB are supported, and you can batch-convert several CAB files at once; each is processed privately and deleted immediately.
How to Convert CAB to ZIP Online
Converting CAB to ZIP with PrivConvert takes three quick steps and no software to install. What you gain with ZIP: opens natively on every OS.
Drag and drop your file into the upload area, click to browse your device, or paste a URL to a file hosted online. You can upload files up to 250 MB and batch convert up to 20 files at once.
Once uploaded, the conversion from CAB to ZIP starts automatically. The process runs entirely in an isolated environment - your data never leaves the secure pipeline.
Your converted file is ready instantly. Click the download button to save it to your device. The file is deleted from memory immediately after download.
What makes this CAB-to-ZIP converter different
Privacy here is not a checkbox. Every CAB-to-ZIP conversion is engineered so your data never lingers, leaks or gets reused.
Every upload and download is protected with TLS 1.3, so your archive cannot be intercepted on the way to the server or back to you.
Convert instantly with no sign-up, no email and no profiling cookies. We never build a profile around you or the files you convert.
Runs in any modern browser on Windows, macOS, Linux, Android and iOS — no install, plugin or desktop software needed.
Each job runs in an isolated in-memory sandbox, so most conversions finish in seconds instead of waiting in a queue.
CAB vs ZIP - Format Comparison
| Feature | CAB | ZIP |
|---|---|---|
| File extension | .cab | .zip |
| Full name | Microsoft Cabinet | ZIP Archive |
| Introduced | 1993 | 1989 |
| Compression | Lossless | Lossless |
| Encoding | Binary | Binary |
| Open standard | — | Yes |
| Supported by PrivConvert | Yes (as input) | Yes (as output) |
| Privacy-safe conversion | In-memory, zero storage | |
| Max file size | 250 MB per file | |
| Batch support | Up to 20 files simultaneously | |
Built for people who value their privacy
From one-off files to daily batches, thousands of people rely on PrivConvert precisely because it keeps nothing once the job is done.