OpenAnyFile
How to open any file
No learning curve. Here is exactly how OpenAnyFile turns a mystery file into something you can see.
Open the site
Visit OpenAnyFile in any modern browser, on a computer or phone. No account and nothing to install.
Add your file
Drag it onto the drop area, click to choose it, or paste a copied file with Ctrl+V (⌘+V on Mac). You can add several at once.
The format is detected
The file's first bytes are compared with a library of known signatures, so the right engine is chosen even if the name is wrong.
View it
The file opens in its viewer: images zoom, videos play, documents scroll, spreadsheets show every sheet, archives open like folders.
Check, download or close
See its size, type and checksums, download it back unchanged, or close the tab. Nothing ever leaves your device.
Tips
- Install it as an app (browser menu → Install) to open files offline and from "Open with".
- Archives are browsable: click into folders and open any file inside — even archives inside archives.
- Unknown extension? The inspector shows the real signature and readable text, which usually identifies it.
- Encrypted files (password-protected archives, DRM books) cannot be opened without their key.
When the extension is wrong or missing
Files get renamed, cut short by email systems, or saved without an extension. OpenAnyFile reads the signature instead of trusting the name: an "invoice.pdf" that starts with PK is really a ZIP — most likely a Word document — and it opens as one.
If a file does not open
- The viewer for that format may still be loading on a slow connection — give it a few seconds; it is cached afterwards.
- You see the inspector instead of a preview: no dedicated viewer matched. Look at the detected signature — the file is often not what its name says.
- Very large files are limited by your device's memory. Close other tabs or use a computer instead of a phone.
- Some codecs (HEVC, AC-3, AMR) depend on your browser. Try another browser such as Safari or Edge.
On a phone
Tap the drop area to reach your files, cloud storage or photos, and pinch to zoom inside images, PDFs and 3D models. Installed to the home screen, it launches full-screen and works without a signal.