WIM to TAR Converter
Processing entirely on your device — large files may take a moment.
TAR preserves the exact file tree and permissions that Linux tooling expects. If your files are still in WIM format, this page is the shortcut: WIM is Windows' own disk-image format — the container of install media and system deployment images.
This converter runs entirely in your browser using WebAssembly — your files never leave your device, nothing is uploaded, and there are no watermarks, sign-ups or queues. Drop in several files at once to convert them as a batch.
How WIM compares to TAR
| WIM | TAR | |
|---|---|---|
| Compression | XPRESS/LZX variants | None (pair with gzip/zstd) |
| Encryption | None (split WIMs exist) | None |
| Bundling | Filesystem image, multiple images per file | Unix-faithful bundling |
| Best for | Windows deployment media | Linux packaging and source trees |
How to convert WIM to TAR
- 1
Select your files
Drag & drop your WIM 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 TAR". The conversion runs entirely inside your browser using WebAssembly — no upload, no queue, no waiting.
- 3
Download results
Download each converted TAR file individually, or grab everything at once as a ZIP archive.
About the WIM format
WIM (Windows Imaging Format) is how Microsoft ships Windows itself: the install media and deployment images are WIM files, holding a complete filesystem snapshot with single-instancing (identical files stored once). It is Windows' answer to tar — file-based rather than sector-based.
Opening one without deployment tooling (DISM, 7-Zip on Windows) is awkward. Extracting WIM to ZIP exposes the files inside — drivers, scripts, provisioned apps — on any system, no Windows required.
+ Strengths
- ✓Windows' native image format
- ✓Single-instancing deduplicates identical files
! Limitations
- −Opaque without Microsoft tooling
- −Files inside may be Windows-locked
About the TAR format
TAR (tape archive) is Unix's fifty-year-old answer to bundling: it concatenates files with headers into a single stream, preserving POSIX permissions, ownership and symlinks — but compressing nothing. It is the container half of the classic .tar.gz pairing and the native format of Linux source trees and backups.
Being pure bundling, TAR pairs with a compressor: gzip (the classic), bzip2, zstd. Alone, a TAR is the same size as its contents. Windows 10+ ships bsdtar, so even Windows can unpack it now — permissions aside, where NTFS has no room to be faithful.
+ Strengths
- ✓Preserves Unix permissions and symlinks
- ✓Streamable: works over pipes and tapes
- ✓The standard of Linux distribution and backup
! Limitations
- −No compression by itself
- −No built-in encryption
- −Permissions meaningless on Windows filesystems
Why convert WIM to TAR?
There is a concrete reason this conversion exists: Opaque without Microsoft tooling TAR sidesteps that — Preserves Unix permissions and symlinks If that is your situation, the tool above settles it in seconds, entirely on your device.
Frequently asked questions
Is this WIM to TAR 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 WIM to TAR?
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.
Are the files inside my WIM archive modified?
No. Contents are unpacked in memory and repacked into TAR byte-for-byte — the conversion changes the container, never the files inside it.
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 WIM file.