LZMA-Alone Create (Compress)
Compress a file as LZMA-Alone or create a tar.lzma archive from multiple files and folders directly in your browser. Read more
What is LZMA-Alone create?
LZMA-Alone is the legacy LZMA1 container: a 13-byte header followed by an LZMA1 stream. It is not XZ, LZIP, or a raw LZMA stream. It compresses a single byte stream and does not store filenames or directory trees. This tool creates .lzma for one file; for multiple files or folders it creates TAR first, then LZMA-Alone-compresses it as .tar.lzma.
How to use this tool
Add files or folders, review their relative archive paths, select preset 0–9, and choose a matching output filename. Use .lzma for a single compressed stream and .tar.lzma when TAR holds multiple entries. Use LZMA-Alone Extract to restore the result.
Choosing the right format
Prefer XZ (.xz / .tar.xz) for new archives when possible: it has stronger container metadata and broader desktop support. .tar.lzma may have weaker desktop integration than .tar.xz. LZMA-Alone remains useful for interoperability with older tools that expect .lzma.
Important limitations
LZMA-Alone and TAR do not encrypt content or paths. LZMA-Alone has limited container metadata and does not include a checksum for verifying the decompressed content. Creating .tar.lzma may require substantial browser memory. Use native tools for large folders or when exact Unix metadata must be preserved.
Frequently asked questions
Why can another program not open the result?
Confirm the receiver expects LZMA-Alone (.lzma), not XZ (.xz) or LZIP (.lz). Decompressing .tar.lzma produces a .tar, which then needs TAR extraction.
Are my files uploaded?
No. Selected files are archived and compressed locally in the browser.
Drag and drop files or folders here, or use the buttons above.
Files are processed locally and are not uploaded.