File Type Detector

Choose this endpoint when you need to validate file uploads server-side by inspecting actual file content rather than trusting user-supplied filenames or MIME headers. It is especially useful for security-sensitive upload flows where disguised executables or mismatched file types pose a risk, and when you need a lightweight, per-call check without standing up your own magic-number detection library.

• Too few bytes provided to identify the format — magic number detection requires at least a handful of bytes from the file header
• Unknown or unsupported file format — returns a null or unknown type if the magic bytes don't match any known signature
• Invalid base64 or hex encoding — malformed input will cause a parsing error
• Missing required 'data' query parameter returns an error
• Very short or truncated byte sequences may lead to ambiguous or incorrect detection