File Type Detector
Workspace
This workspace processes the content directly in your browser.
Formatting, decoding, validation, and common file work stay local whenever possible, then continue in the same result area for copy, download, or the next step.
Paste content, choose a file, or load a sample first.
The content stays in the local browser by default.
After processing, copy, download, or continue into a related workflow.
Select file
Detection result
The tool will show extension, MIME type, size, and a common signature guess.
Inspect a local file in the browser and identify common formats from its extension, MIME type and magic bytes.
Common tasks
- Check unknown exported files quickly
- Compare browser MIME with magic-byte signatures
- Verify whether a file matches its extension
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Key Questions
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