Analyze binary files and detect MIME types - entirely in your browser
This tool analyzes files entirely in your browser without uploading anything:
Files are analyzed locally using JavaScript. Nothing is sent to any server.
Analyze files of any size - even several gigabytes - since processing is local
Detects file type by examining the actual file header bytes, not just extension
Results appear immediately without waiting for upload or server processing
Encode, decode, measure sizes, and transform common formats.