LZMA Converter
Convert files to and from LZMA online for free. Fast, secure, and high-quality file conversion with no sign-up or software required.
Maximum file size is 1GB
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What is an LZMA file?
The LZMA (Lempel-Ziv-Markov chain Algorithm) format is a lossless data compression algorithm and file format developed by Igor Pavlov and first featured in the 7-Zip archiver in 1998. It utilizes a dictionary compression scheme somewhat similar to LZ77 but with significant improvements via a range encoder and complex probability models, resulting in high compression ratios comparable to PPM (Prediction by Partial Matching). The raw .lzma stream format typically includes a 13-byte header defining properties like dictionary size (up to 4 GB) and uncompressed size, often used within .7z or .xz containers rather than as standalone files.
How to open an LZMA file
LZMA files are natively supported on Linux distributions via the lzma command-line utility or the xz-utils package. On Windows and macOS, native support is absent, requiring third-party archival software. 7-Zip is the primary reference implementation for decoding LZMA streams on Windows; alternatively, multi-format extractors like PeaZip or The Unarchiver (macOS) utilize the LZMA SDK to decompress the data.
LZMA Technical Info
- Full Name
- Lempel-Ziv-Markov chain Algorithm
- Developed By
- Igor Pavlov
- Initial Release
- 1998
- MIME Type
- application/x-lzma
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