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File type inspector
Encoding
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All processing for this tool happens in your browser. Your input is not sent to a server.
About this tool
Identify likely formats and MIME by signature, check extensions and inspect hexadecimal headers.
Common uses
- Identify likely formats and MIME by signature, check extensions and inspect hexadecimal headers.
- Investigate files that still fail after changing an extension.
How to use it
- 1.Select local files or enter input and configure options.
- 2.Process, review the preview, then download or copy the result.
Limits and notes
- Up to 20 files / 64 MiB, 32 MiB per file. Not a virus scan. Plain text and unknown signatures remain inconclusive.
Frequently asked questions
Are files uploaded?
Processing stays in your browser; input is not uploaded.
What are the limits?
Up to 20 files / 64 MiB, 32 MiB per file. Not a virus scan. Plain text and unknown signatures remain inconclusive.