Convert TAR to TAR.BZ2 Online Free

Add bzip2 compression to your uncompressed TAR archive. Same files, same permissions, much smaller size. Powered by 7-Zip on our secure servers.

Quick Answer

ChangeThisFile compresses your uncompressed TAR archive with bzip2 to create a TAR.BZ2 file using 7-Zip on our secure servers. This adds strong compression while preserving all files, directory structure, and Unix permissions. Your file is encrypted during upload and auto-deleted after processing, completely free with no signup required.

Free No signup required Encrypted transfer · Auto-deleted Under 2 minutes Updated March 2026

Convert TAR to TAR.BZ2

Drop your TAR file here to convert it instantly

Drag & drop your .tar file here, or click to browse

Convert to TAR.BZ2 instantly

TAR vs TAR.BZ2: Format Comparison

Key differences between the two formats

Feature	TAR	TAR.BZ2
Compression	None (uncompressed archive)	Bzip2 (BWT + Huffman)
File size	Sum of all files + overhead	Typically 60-80% smaller
Unix permissions	Full support	Full support (preserved by TAR layer)
Random access	Sequential only	Sequential only
Compression speed	N/A (no compression)	Moderate (slower than gzip)
Decompression speed	Instant (just reading)	Moderate
Compatibility	Universal on Unix	Universal on Unix, 7-Zip on Windows
Best for	Bundling files without compression	Compressed distribution and backups

When to Convert

Common scenarios where this conversion is useful

Compress uncompressed archives

If you have a plain TAR archive that was created without compression, adding bzip2 compression can reduce the file size by 60-80%, saving significant storage and bandwidth.

Prepare for distribution

Uncompressed TAR files are unwieldy for sharing. Adding bzip2 compression creates a standard TAR.BZ2 that is widely supported and much smaller.

Server backup compression

Compress existing TAR backups with bzip2 for long-term storage. Bzip2 offers better ratios than gzip, ideal for archives that are written once and read rarely.

Who Uses This Conversion

Tailored guidance for different workflows

Developers

Convert TAR packages to TAR.BZ2 for compatibility with build tools or deployment pipelines
Transform TAR release archives to TAR.BZ2 for distribution to users on different operating systems

Verify that file permissions and symlinks are preserved when converting between TAR and TAR.BZ2

Check the compressed TAR.BZ2 size to ensure the archive meets distribution size limits

System Administrators

Convert TAR backup archives to TAR.BZ2 for long-term storage or migration to a new system
Transform TAR log archives to TAR.BZ2 for tools that require a specific archive format

Test extracting the converted TAR.BZ2 archive to verify all files are intact and uncorrupted

Use checksums to verify data integrity after converting large TAR archives to TAR.BZ2

IT Professionals

Convert TAR archives to TAR.BZ2 for sharing with clients or partners who need a specific format
Transform TAR compressed files to TAR.BZ2 when migrating data between Windows, macOS, and Linux

Consider the compression ratio: TAR.BZ2 may produce smaller or larger files than the TAR original

Ensure the recipient has software that can extract TAR.BZ2 before sending the converted archive

How to Convert TAR to TAR.BZ2

1

Upload your TAR file

Drag and drop your .tar file onto the converter, or click to browse. Files up to 50 MB are supported for free.
2

Server-side compression

Your file is securely uploaded and compressed with bzip2 on our servers using 7-Zip. All files and permissions inside the TAR are preserved. This typically takes a few seconds.
3

Download the result

Once compression is complete, click Download to save your .tar.bz2 file. The uploaded file is automatically deleted from our servers.

Frequently Asked Questions

Is the TAR to TAR.BZ2 conversion free?

Yes, completely free. Compress your TAR to TAR.BZ2 with no cost, no signup, and no watermarks.

Does this just add compression to the existing TAR?

Yes. The TAR archive is compressed as a whole with bzip2. All files, directories, permissions, and ownership inside the TAR remain identical.

How much smaller will the file be?

It depends on the content. Text files compress 70-90% smaller. Binary files may compress 20-50%. On average, expect a 60-80% size reduction.

Is my file kept on your servers?

No. Files are automatically deleted immediately after conversion. Nothing is stored or retained.

Is the transfer secure?

Yes. Files are transferred over encrypted HTTPS connections. Your data is protected in transit.

Why choose bzip2 over gzip?

Bzip2 typically achieves 10-20% better compression than gzip, especially on text-heavy data. The tradeoff is slightly slower compression and decompression speed.

Can I decompress TAR.BZ2 on any system?

Yes. On Linux and macOS, use tar xjf file.tar.bz2. On Windows, 7-Zip, WinRAR, and PeaZip all support TAR.BZ2.

What is the maximum file size?

Archives up to 50 MB are supported for free conversion.

Are symbolic links preserved?

Yes. The TAR layer preserves symbolic links, hard links, and all Unix metadata. Bzip2 compression does not alter the archive contents.

What is bzip2 compression?

Bzip2 uses the Burrows-Wheeler transform followed by Huffman coding. It produces smaller files than gzip's DEFLATE algorithm, making it popular for source code tarballs and backups.

Related Conversions

Ready to convert your file?

Convert TAR to TAR.BZ2 instantly — free, no signup required.

Start Converting