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LZH file: what it is and how to open it

LHA archive. Here is what a .lzh file contains, how to open one on any device, and a viewer that opens it right in your browser.

Open a .lzh file hereChoose fileRead in your browser. Nothing is uploaded.

What the viewer shows

  • Whether the file matches the .lzh signature
  • The first bytes as hex
  • A preview when your browser can display it

What is a .lzh file?

A .lzh file is an LHA archive. Its registered MIME type is application/x-lzh-compressed, which places it in the application or document family of formats.

LZH is a binary format: the contents are not readable text, so opening it in a text editor shows scrambled characters.

The same format is also saved with the extension .lha.

LZH file format details

Extension.lzh
FormatLHA archive
MIME typeapplication/x-lzh-compressed, application/x-lha
CategoryApplication or document
Text or binaryBinary
File signatureNone fixed
Registered with IANANo
Other extensions.lha

How to open LZH files

WindowsWindows opens ZIP files itself. For other archive types, the free 7-Zip program opens most of them, LZH included.
MacArchive Utility opens ZIP and several other formats with a double click. The free app The Unarchiver handles many more.
iPhone and iPadThe Files app can open ZIP archives. Other archive types need an app from the App Store.
AndroidFiles by Google opens ZIP archives. Other types need an archive app such as RAR or ZArchiver.

Can you convert a .lzh file?

TapToConvert does not convert LZH files. The usual route is to open the file in the program that made it and use its Export or Save as option.

LZH file FAQ

What is a .lzh file?

A .lzh file is an LHA archive, with the MIME type application/x-lzh-compressed.

How do I open a .lzh file?

7-Zip on Windows and The Unarchiver on Mac open most archive formats.

Is a .lzh file safe to open?

LZH files hold data rather than programs, but any file from an unknown source can be crafted to exploit the software that opens it. Keep that software up to date. The viewer on this page only reads the bytes and never runs anything.

What is the MIME type of .lzh?

application/x-lzh-compressed, and it is also seen as application/x-lha. Web servers send this type so browsers know how to handle the file.

Is LZH a text or binary format?

Binary. Its contents are not readable as text.

File type facts come from the IANA media type registry, the mime-db project and the freedesktop.org shared MIME database.

Similar file types

Try MP4 to MP3, HEIC, merge PDF or compress video.