OpenAnyFile
What is a .webarchive file?
Safari Web Archive is a data format developed by Apple, first released in 2005. It is usually created by Safari (File → Save As → Web Archive).
A binary property list holding the page HTML plus its images and styles. The saved page text and resources are unpacked here.
File details
| Full name | Safari Web Archive |
|---|---|
| Category | Data & science |
| MIME type | application/x-webarchive |
| Signature (magic bytes) | 62 70 6C 69 73 74 30 30 (bplist00) |
| Developer | Apple |
| Introduced | 2005 |
| Opens with | Property list decoder |
| Uploaded? | No — read locally in your browser |
How to open a .webarchive file
OpenAnyFile routes .webarchive files to its property list decoder, which shows the keys and values as a readable tree.
- Drop your .webarchive 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 property list decoder.
- 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 keys and values as a readable tree. 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 .webarchive 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 .webarchive files
Can I open a .webarchive file without installing software?
Yes. OpenAnyFile opens .webarchive files in your browser using its property list decoder. You get the keys and values as a readable tree, with nothing installed and no account.
How do I know a file is really a .webarchive file?
Check its first bytes instead of its name. A genuine WEBARCHIVE file begins with 62 70 6C 69 73 74 30 30 (bplist00). OpenAnyFile shows the detected type, so a renamed file is easy to spot.
Is my .webarchive 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.