OpenAnyFile
What is a .wad file?
Doom WAD is a game format developed by id Software, first released in 1993. It is usually created by Doom, GZDoom, Doom Builder.
'Where's All the Data': an IWAD holds a whole game, a PWAD a mod. The lump directory is listed here.
File details
| Full name | Doom WAD |
|---|---|
| Category | Games & mods |
| MIME type | application/x-doom |
| Signature (magic bytes) | 49 57 41 44 (IWAD) or 50 57 41 44 (PWAD) |
| Developer | id Software |
| Introduced | 1993 |
| Opens with | WAD lump browser |
| Uploaded? | No — read locally in your browser |
How to open a .wad file
OpenAnyFile routes .wad files to its WAD lump browser, which shows the lump directory with sizes.
- Drop your .wad 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 WAD lump browser.
- Use fullscreen for a closer look, check its checksums, or download it back unchanged.
What works — and what does not
Works
Viewing and inspecting: the lump directory with sizes. Size, type, signature and checksums are always shown.
Does not work
Editing and saving back. OpenAnyFile is a viewer, not an editor — for changes you still need the original app.
Is it safe to open a .wad 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 .wad files
Can I open a .wad file without installing software?
Yes. OpenAnyFile opens .wad files in your browser using its WAD lump browser. You get the lump directory with sizes, with nothing installed and no account.
How do I know a file is really a .wad file?
Check its first bytes instead of its name. A genuine WAD file begins with 49 57 41 44 (IWAD) or 50 57 41 44 (PWAD). OpenAnyFile shows the detected type, so a renamed file is easy to spot.
Is my .wad 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.