Analyze file format online
Get comprehensive info about any file — including its format, file extension, and MIME type — all determined by analyzing the actual file content.
Explore files alphabetically by extension
Browse extensions by category
- 3D Image Files
- Audio Files
- Backup Files
- Compressed Files
- Configuration Files
- Data Files
- Database Files
- Developer Files
- Document Files
- Executable Files
- Font Files
- Game Files
- GIS Files
- Graphics Files
- Plugin Files
- Raster Image Files
- Settings Files
- Spreadsheet Files
- System Files
- Temporary Files
- Text Files
- Vector Image Files
- Video Files
- Web Files
How do I analyze an unknown file?
Simply choose the file on your device and upload it to our site. We inspect the file’s binary signature and content to detect its format. We also analyze metadata, MIME type, and other file attributes.
The analysis results are shown in a clear table with details about file format, size, creation time, and more.
If extended data is available — such as image dimensions, video resolution or audio bitrate — we will display those in the results too.
What is a File Format?
A file format is a defined structure and encoding of data stored within a computer file. It describes how the data should be read, interpreted, and processed by software or systems.
Computers and applications rely on file types to correctly recognize and handle different kinds of files.
Each file type usually corresponds to a specific extension — the characters following the dot in the filename. To open or edit files in various formats, you need appropriate software that supports them.
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