File Type Detection
A quick and effective way to detect file types on demand. Glasswall File Type Detection will find out if your files are what they say they are.
Problem
It's easy for file extensions to be changed, either deliberately or inadvertently. Misnamed file types are risky as they can avoid security measures, allowing malware into your organisation. Masquerading files make use of this vulnerability, providing an effective way of evading detection.
Solution
Glasswall's File Type Detection makes it quick and easy to avoid the risk of masquerading files. It gives peace of mind that a file really is what is says it is.
Along with an API key, users upload files they want to verify. Keys are purchased based on required file volume. The file is analysed by our cloud service with the result returned via a JSON. All uploaded files are immediately destroyed, ensuring complete protection of your data.

Here are all the different types of files the Glasswall Rebuild engine detects using the internal structure of files:
File Types | File Description |
Adobe Portable Document | |
JPG GIF PNG EMF WMF TIFF GeoTIFF BMP | Images |
DOC DOT | MS Word 97-2003 |
XLS XLT | MS Excel 97-2003 |
PPT POT | MS PowerPoint 97-2003 |
DOCX DOCM DOTX DOTM | MS Word 2003 & later |
XLSX XLAM XLSM XLTX XLTM | MS Excel 2003 & later |
XPPTX POTX POTM PPTM PPSX PPAM PPSM | MS PowerPoint 2003 & later |
WAV MP3 | Audio |
MPG MP4 | Video |
PE DLL MUI EXE MACH-O COFF ELF | Portable executables |
Once you have your API key by email, use this web UI or this Swagger UI (shown in the video below) to start the service and test your files:
Please use the product-file-type-detection GitHub repo which also contains the Swagger UI code. Open an Issue with any bugs/issues that you discover or provide feedback on how we can make this service better.
Question: Where can I access the API?
Answer: Check out our swagger page that provides documentation on the API itself
Question: How can I upload multiple files for file type detection?
Answer: Try out our file type detection drop site. You can upload multiple files at once. By default our site uses the public key with which activity is limited.
Year 1: £29,890.00
- 12 months of Glasswall Editor
- Support and maintenance
Year 2: £9,980.00
- 12 months of Glasswall Editor
- Support and maintenance
Year 3: £9,980.00
- 12 months of Glasswall Editor
- Support and maintenance