DMG to TAR.BZ2 Converter
Processing entirely on your device — large files may take a moment.
Apple Disk Image and Bzip2-compressed Tar exist for different jobs: DMG is macOS's disk image: a UDIF container that can hold an HFS+/APFS filesystem, compression and even encryption. Every Mac app download ships as one. Produce a TAR.BZ2 when a mirror, build script or legacy toolchain expects the classic .tar.bz2 release artifact.
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 to convert DMG to TAR.BZ2
- 1
Select your files
Drag & drop your DMG 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.BZ2". The conversion runs entirely inside your browser using WebAssembly — no upload, no queue, no waiting.
- 3
Download results
Download each converted TAR.BZ2 file individually, or grab everything at once as a ZIP archive.
About the DMG format
DMG is Apple's Universal Disk Image Format: a UDIF wrapper that can carry an HFS+ or APFS filesystem, ADC/LZFSE/ZLIB compression blocks, and optional AES encryption. It is the distribution vehicle of every macOS application — double-click, drag, done.
The format is officially undocumented, which makes cross-platform extraction historically painful; 7-Zip's decoder handles the common compressed variants, letting any OS pull the payload out and repackage it as a plain ZIP or TAR.
+ Strengths
- ✓Native macOS distribution standard
- ✓Supports compression and encryption
- ✓7-Zip reads the common variants in-browser
! Limitations
- −Unofficial format — exotic variants may fail
- −Encrypted DMGs need a password
- −APFS volumes are partial-support
About the TAR.BZ2 format
TAR.BZ2 pairs the tar container with bzip2 compression — the classic release artifact of the 2000s Unix world. Bzip2's block-sorting algorithm compresses text and source trees noticeably tighter than gzip, which is why distribution mirrors and source releases favoured it for years.
Today it has largely ceded the top spot to TAR.XZ (smaller) and tar.gz (faster), but countless build scripts, mirrors and legacy toolchains still expect the exact .tar.bz2 artifact — and producing it is a matter of running the tar through a bzip2 encoder.
+ Strengths
- ✓Tighter than gzip on text and source trees
- ✓Classic, universally supported on Unix-like systems
- ✓Deterministic, well-understood artifact for releases
! Limitations
- −Slow compression compared to gzip/zstd
- −Larger than TAR.XZ for the same content
- −Single stream — no random file access
Why convert DMG to TAR.BZ2?
Think of it as moving your file to the container that fits the job. Unofficial format — exotic variants may fail TAR.BZ2 works differently: Tighter than gzip on text and source trees If any of that sounds like your task, run the conversion — it takes seconds and nothing leaves your device.
Frequently asked questions
Is this DMG to TAR.BZ2 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 DMG to TAR.BZ2?
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 DMG archive modified?
No. Contents are unpacked in memory and repacked into TAR.BZ2 byte-for-byte — the conversion changes the container, never the files inside it.