What is a .LZ4 file?
LZ4 is an extremely fast compression format, used where speed matters more than ratio. Analyser decompresses it in the browser so you can open the file inside.
- Did you know
- LZ4, released in 2011, powers fast compression in databases, filesystems and game engines.
- LZ4 was created by Yann Collet and belongs to the LZ77 family, trading compression ratio for decompression speeds often above a gigabyte per second.
- Collet’s work on LZ4 led him to design Zstandard, which kept the speed while reaching higher compression ratios.
- What Analyser shows you
- Browse the file tree and compression details of archives without extracting them: ZIP in pure JavaScript, and RAR, 7z, TAR and compressed tarballs (.tar.gz / .tgz, .tar.xz, .tar.zst, .tar.bz2) through a bundled libarchive engine - click any file inside to analyse it. A single compressed stream (.gz, .xz, .zst, .lz4, .lzma, .Z) is decompressed so the file within can be opened; bare .bz2 streams are identified only.
- Open a .LZ4 file
- Drag a .LZ4 file onto the Analyser home page (or tap to pick one). It opens entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.