TAR.LZMA (TLZMA) to TBZ2 (TAR.BZ2) Converter
Convert your tar.lzma files to tbz2 online & free
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How to convert TAR.LZMA to TBZ2
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About formats
TAR.LZMA is a compound archive format combining TAR) archiving with the LZMA (Lempel-Ziv-Markov chain Algorithm) compression method developed by Igor Pavlov for the 7-Zip project around 1998. The TAR layer concatenates files with Unix metadata into a single stream, and the LZMA algorithm compresses it using a sophisticated combination of LZ77 dictionary matching with large dictionaries (up to 4 GB), Markov chain-based probability modeling, and range coding. LZMA was the predecessor to the LZMA2 algorithm used in XZ and 7Z formats. Compression ratios significantly exceed gzip and are comparable to bzip2 while offering substantially faster decompression. One advantage is the high compression ratio with fast extraction — LZMA decompresses at speeds close to gzip while achieving compression densities near bzip2 or better, making it efficient for distribution archives that are compressed once and extracted many times. The format is supported by tar's --lzma flag and by 7-Zip across all platforms. While TAR.LZMA has been largely succeeded by TAR.XZ (which uses LZMA2 in a more robust container with integrity checks), existing TAR.LZMA archives remain encountered in software distributions and backup systems that adopted the format before XZ became widely available.
TBZ2 (also written as .tar.bz2) is a compound archive format combining TAR) archiving with bzip2 compression, developed by Julian Seward and first released on July 18, 1996. The TAR layer concatenates files with full Unix metadata into a single stream, and bzip2 compresses the result using the Burrows-Wheeler block-sorting algorithm combined with Huffman coding. Bzip2 processes data in blocks (typically 900 KB), applying the BWT to sort the block, then run-length encoding, move-to-front transformation, and finally Huffman encoding. This pipeline typically achieves 15-25% better compression than gzip on most data types, with particularly strong results on text, source code, and structured data. TBZ2 was the standard high-compression archive format on Linux and Unix systems before XZ gained widespread adoption. One advantage is the compression improvement over TGZ — bzip2 consistently produces smaller archives, meaningful when distributing large source trees or creating storage-constrained backups. The block-based architecture provides another benefit: if an archive is corrupted, data loss is limited to the affected blocks rather than the entire stream, and bzip2recover can extract intact blocks from damaged files. TBZ2 is supported by GNU tar via the -j flag and is recognized by every major archiving tool across platforms. The format remains widely used in source distribution and backup workflows.