LZH to ZIP Converter
Processing entirely on your device — large files may take a moment.
LHA/LZH Archive and ZIP Archive exist for different jobs: LZH (LHA) is the archive format of the Japanese PC-98 era and Amiga scene — still attached to old downloads and doujin material. ZIP is the safest archive to share — no special software needed on the receiving end.
This converter runs entirely in your browser using WebAssembly — your files never leave your device, nothing is uploaded, and there are no watermarks, sign-ups or queues. Drop in several files at once to convert them as a batch.
How LZH compares to ZIP
| LZH | ZIP | |
|---|---|---|
| Compression | LZ (LHA variants) | Deflate / store |
| Encryption | None | ZipCrypto (weak) or AES add-on |
| Bundling | Multi-file | Multi-file with directory tree |
| Best for | Retro software archives | Universal sharing |
How to convert LZH to ZIP
- 1
Select your files
Drag & drop your LZH files onto the area above, or click to browse. You can add multiple files at once for batch conversion.
- 2
Convert instantly
Click "Convert to ZIP". The conversion runs entirely inside your browser using WebAssembly — no upload, no queue, no waiting.
- 3
Download results
Download each converted ZIP file individually, or grab everything at once as a ZIP archive.
About the LZH format
LZH (also LHA) is the archive format that ruled Japanese PCs in the 8.3-filename era and the Amiga scene elsewhere. It compresses with a simple LZ scheme, predates ZIP's dominance, and still shows up attached to retro software, doujin archives and old BBS downloads.
No modern OS opens it natively, and LHA tools are niche. Converting LZH to ZIP is the one-step rescue: same files, universal container, no retro software hunt required.
+ Strengths
- ✓The retro Japanese/Amiga archive standard
- ✓Simple, well-documented compression
! Limitations
- −No native OS support today
- −Weak compression by modern standards
About the ZIP format
ZIP (PKWARE, 1989) is the archive format the world agreed on: per-file Deflate compression (or plain store), a central directory that lets tools list and extract single files without touching the rest, and thirty-five years of universal support. Windows, macOS, Linux, phones and browsers all open ZIP natively.
Its compression ratio is middle-of-the-road next to 7z, and its encryption story is genuinely mixed: the classic ZipCrypto is broken, while AES-256 works only in tools that opted in. For maximum compatibility of everyday sharing, though, ZIP remains the only safe answer.
+ Strengths
- ✓Opens natively on every platform
- ✓Random access: extract one file, skip the rest
- ✓Thirty-five years of tooling maturity
! Limitations
- −Weaker compression than 7Z/RAR
- −Classic encryption (ZipCrypto) is broken
- −No built-in recovery records
Why convert LZH to ZIP?
Converting makes sense where the strengths of ZIP meet what LZH cannot give you. Opens natively on every platform Meanwhile No native OS support today One pass through the converter above puts your file on the right side of that trade-off.
Frequently asked questions
Is this LZH to ZIP converter really free?
Yes — completely free, with no sign-up, no watermark and no daily conversion limits. The site is supported by advertising.
Are my files uploaded to a server?
No. The conversion runs entirely inside your browser using WebAssembly, so your files never leave your device — that is what makes it instant and private.
Does it work on Windows, Mac, iPhone and Android?
Yes. Anything with a modern browser works: Windows, macOS, Linux, Android and iOS. No software installation is required.
Is there a file size limit for LZH to ZIP?
The only limit is your device's memory, since nothing is uploaded. Files up to a few hundred megabytes work fine on a modern desktop browser; very large files simply take a little longer.
What about folders and directory structure?
The full directory tree is preserved: folders stay folders, and deep paths arrive exactly as they were packed in the LZH file.
Is there a size limit for archive conversion?
There is no upload cap because nothing is uploaded — the practical limit is your device memory. A few hundred megabytes of unpacked content works comfortably on a modern computer.