Apps / File & Data Converters / File Type Detector

🕵️ File Type Detector (Magic Bytes)

Reads the first bytes of a file and checks them against known file-signature ("magic number") patterns to identify its real type — regardless of what its extension claims. Handy for spotting a renamed or mislabeled file. Nothing is uploaded; only the first 32 bytes are read, locally.

1. Choose a file

📁
Click to choose, or drag & drop any file
Only the first 32 bytes are read.

2. Detected type

Choose a file to detect its type.