What is the difference between LZMA and XZ?

LZMA is the original compression algorithm. XZ is the newer container format that uses LZMA2 (an improved version) with better integrity checking and streaming. The legacy .lzma format predates .xz and is less common today.

Are my LZMA files uploaded?

No. Files you open from your device stay on your device and are read locally. Only the public sample archive is requested from the server.

It is a legacy format largely superseded by .xz and .7z, but you may still encounter it in older packages, embedded systems, and some specialized tools.

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LZMA Viewer

Free online LZMA viewer. Open .lzma archives in your browser to list contents — no upload, no extraction.

.lzma

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About this file format

LZMA (.lzma, Lempel-Ziv-Markov chain Algorithm) is a high-ratio compression method developed for the 7-Zip project. The standalone .lzma format was introduced around 2000 and later evolved into LZMA2 within the XZ container format. While largely superseded by .xz and .7z, the .lzma format still appears in legacy packages and embedded-system distributions.

LZMA Viewer

About this file format

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LZMA Viewer

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