BZ2 is bzip2 compression — slower than gzip but smaller, still common for Wikipedia dumps, source tarballs and old backups.
Typical use: Convert BZ2 to ZIP or TAR when modern tools need a friendlier container.
About the BZ2 format
BZ2 applies the Burrows–Wheeler transform: slower than gzip but noticeably smaller, which is why Wikipedia database dumps and old source tarballs still arrive as .bz2.
Few GUI tools ship a bz2 reader these days, so converting the contents into a ZIP or TAR is the practical way to hand the payload to someone else.
Strengths
- ✓ Better ratio than gzip
- ✓ Common in dumps and archives
- ✓ Mature, stable format
Limitations
- ✗ Slow to compress and decompress
- ✗ Declining tool support
- Layout
- One compressed member
- Compression
- BWT + Huffman
- Bundling
- Single file
- Best for
- Large text dumps
Convert BZ2 to…
12 direct directions, sorted A–Z; 🔥 marks popular targets.
Frequently asked questions
What is a BZ2 file?
BZ2 is bzip2 compression — slower than gzip but smaller, still common for Wikipedia dumps, source tarballs and old backups.
How do I convert BZ2 files online?
Pick a target format from the "Convert BZ2 to…" list below, drop your file and hit convert. Everything runs in your browser — no install, no upload, no watermark, no limits.
Is it safe to convert BZ2 files here?
Yes. Every conversion is performed by your own device inside the browser — files never leave for a server, and the page keeps working even offline.
Which formats can BZ2 convert to?
This page lists all 12 directions across documents, images, audio, video, spreadsheets and archives — each one is its own free converter page.