LHA/LZH Extractor

Open and extract LHA and LZH archive files directly in your browser. Perfect for Japanese software and retro computing archives.

Drop LHA/LZH file here

.lha, .lzh files

LHA contents will appear here

Security: Only process files from sources you trust. All processing happens locally in your browser.

Frequently Asked Questions

LHA (also known as LZH) is an archive format popular in Japan. It was widely used for software distribution before ZIP became dominant.

LHA files are common in Japanese software, retro gaming, and legacy systems. This tool opens them without installing special software.

No. All extraction happens locally in your browser using WebAssembly. Your files never leave your device.

LH0 (stored), LH1, LH4, LH5, LH6, LH7 and other standard LHA compression methods are supported.

Self-extracting executables (.exe) are not directly supported. Extract the .lzh portion if present.

Japanese filenames (Shift-JIS encoded) are properly decoded and displayed in Unicode.

No hard limit, but large archives may be slow due to browser memory constraints.

Currently single-file archives only. Multi-volume archives need to be joined first.

Yes. Click the download button next to any file, or use 'Download All' to get everything as a ZIP.

After the first load, the extraction engine is cached and works offline.