How to convert BZ2 to GZ
- Add your .BZ2 file - drop it in the box above or click to browse.
- Convert it to .GZ in a few seconds.
- Download your new .GZ file.
What to expect
- The
.gzoutput is typically 5-15% larger than the source.bz2because bzip2 achieves better compression ratios than gzip on most data. - Most
.bz2archives are actually.tar.bz2- a.tarbundle compressed with bzip2; converting these produces a.tar.gzwith the same internal structure intact. - CRC checksums are recalculated during conversion: gzip writes its own CRC-32, replacing the original bzip2 checksum - this is expected and does not indicate data loss.
Frequently asked questions
Does converting BZ2 to GZ lose any data?
No - both formats are lossless, so the decompressed content is bit-for-bit identical; only the outer compression wrapper changes.
Can I convert .tar.bz2 to .tar.gz?
Yes, this is the most common use case. The
.tar structure inside is preserved; only the compression layer is replaced.Will the .gz file decompress faster than the .bz2?
Yes - gzip decompression is significantly faster than bzip2, which is one of the main reasons to convert.
Why is my .gz file larger than the original .bz2?
bzip2 typically compresses 5-15% better than gzip, so a
.gz of the same content is larger; this is normal and expected.
