OpenAnyFile
What is a .alz file?
ALZip Archive is a binary format developed by ESTsoft, first released in 1999. It is usually created by ALZip (Korea).
A Korean archive format that is rare elsewhere; most unarchivers outside Korea can't open it.
File details
| Full name | ALZip Archive |
|---|---|
| Category | System & binary |
| MIME type | application/x-alz |
| Signature (magic bytes) | 41 4C 5A 01 (ALZ) |
| Developer | ESTsoft |
| Introduced | 1999 |
| Opens with | Universal inspector |
| Uploaded? | No — read locally in your browser |
How to open a .alz file
OpenAnyFile routes .alz files to its universal inspector, which shows a hex view, the detected signature, checksums and any readable text.
- Drop your .alz file on the box above, click it to choose the file, or paste it with Ctrl+V.
- The real format is detected from the file's first bytes — not just its name.
- The file opens in the universal inspector.
- Use fullscreen for a closer look, check its checksums, or download it back unchanged.
What works — and what does not
Works
Viewing and inspecting: a hex view, the detected signature, checksums and any readable text. Size, type, signature and checksums are always shown.
Does not work
A rendered view. This format has no open decoder, so you get a byte-level inspection and readable text instead.
Is it safe to open a .alz file online?
Here, yes — because nothing is uploaded. Most "online viewers" send your file to their server. OpenAnyFile reads it with your browser's File API and decodes it on your own device, so there is no copy anywhere else. You can check: open your browser's network tab while opening a file — no upload appears.
Questions about .alz files
Can I open a .alz file without installing software?
Yes. OpenAnyFile opens .alz files in your browser using its universal inspector. You get a hex view, the detected signature, checksums and any readable text, with nothing installed and no account.
How do I know a file is really a .alz file?
Check its first bytes instead of its name. A genuine ALZ file begins with 41 4C 5A 01 (ALZ). OpenAnyFile shows the detected type, so a renamed file is easy to spot.
Is my .alz file uploaded anywhere?
No. The file is read locally by your browser and never sent to a server — it even works offline once the page has loaded.
Does it work on phones?
Yes — on Android and iPhone, in any modern browser. You can also install OpenAnyFile as an app.
Related formats
Other formats from the same family:
Format facts checked and page updated on September 25, 2026.