OpenAnyFile
Works
Viewing, inspecting and verifying. You get a byte-level hex and ASCII dump alongside the detected signature, exact size and type analysis. File details, exact byte size and the detected signature are always shown.
How to open a .dmp file
A DMP file is a Memory Dump, introduced by Microsoft in 1993. Below: what is actually inside one, and how to open it without installing special software.
What is a .dmp file?
Memory Dump is a binary & system format developed by Microsoft, first appearing in 1993. It is normally produced by Windows crash handler, debuggers.
A snapshot of memory at crash time, read with WinDbg. Full dumps can contain passwords and keys that were resident in RAM.
| Full name | Memory Dump |
|---|---|
| File category | Binary & system |
| MIME type | application/octet-stream |
| Magic bytes (file signature) | 50 41 47 45 44 55 (PAGEDU) |
| Developer | Microsoft |
| Introduced | 1993 |
| Usually created by | Windows crash handler, debuggers |
| OpenAnyFile engine | universal hex inspector |
| Opens without upload | Yes — parsed locally in your browser |
Open a .dmp file in your browser
OpenAnyFile routes .dmp to its universal hex inspector, which inspects a byte-level hex and ASCII dump alongside the detected signature, exact size and type analysis.
- Open the OpenAnyFile opener in this browser — nothing to download or sign up for.
- Drag your .dmp file onto the drop zone, click to browse for it, or paste it with Ctrl+V.
- The extension is detected and the file is handed to the universal hex inspector.
- Your DMP opens on its own viewer page: a byte-level hex and ASCII dump alongside the detected signature, exact size and type analysis.
- Use fullscreen for a closer look, or download the file back out unchanged. Free, and free in the sense that there is no paid tier waiting behind step three.
What you can and cannot do with it here
Does not work
Full-fidelity rendering. This extension has no standard structure, so you get a byte-level inspection rather than a rendered view.
Is it safe to open a {E} file on a website?
It depends entirely on whether the website uploads it, and almost all of them do. That is a real problem when the binary & system file in question is a contract, a client deliverable or something under NDA. OpenAnyFile removes the question: the decoding happens inside your browser tab, so there is no transfer, no queue, no temporary storage and no retention window to read about in a privacy policy.
Frequently asked questions about DMP files
Can I open a .dmp file without installing special software?
Yes. OpenAnyFile's universal hex inspector runs in your browser, so you can read a DMP file with nothing installed. You get a byte-level hex and ASCII dump alongside the detected signature, exact size and type analysis. It will not replace the original application for editing, but it answers 'what is in this file' in seconds.
How can I check a file really is a DMP file?
Look at the first bytes rather than the extension. A genuine DMP begins with 50 41 47 45 44 55 (PAGEDU). Opening the file in OpenAnyFile shows that signature in the file-details panel, so a file renamed to .dmp by mistake is easy to spot.
Is it safe to open a DMP file online?
With OpenAnyFile, yes, because nothing is uploaded. The file is read locally through your browser's File API and never leaves your device, so there is no server copy to leak, log or retain. That matters most for the kind of file people are least willing to hand to a random converter site.
What is a .dmp file, exactly?
Memory Dump — an application/octet-stream format created by Microsoft since 1993. A snapshot of memory at crash time, read with WinDbg. Full dumps can contain passwords and keys that were resident in RAM.
Does the same viewer handle formats related to DMP?
Yes — the same engine also opens .dll, .doc, .exe, so you can compare related files without switching tools.
Related formats
These open with the same engine, so if you have one of these sitting next to your .dmp file, it will open too: