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Identify the true format of any file from its content — regardless of extension.
Upload or drag & drop any file
The tool reads magic bytes to identify the true format
See MIME type, extension, and file details
Detects format from file content, not just the extension
Identifies hundreds of file formats
Detection is nearly instant — only reads file header
It reads the first few bytes (magic bytes/file signature) of the file, which identify the format.
Yes — since it reads content, not the extension, renamed files are detected correctly.
No, only the first few kilobytes are read for detection — very fast even for large files.