Inspect a local fileIdentify its format from signatures and internal structure.
Local processingDrop a file here
or choose a file from your device. Files under 100 MB are recommended for the best experience.
Your file is processed locally in this browser. Its name, content, hashes and extracted strings are not uploaded to Coobbi.
This is a large file and analysis may take longer.
File Information
Basic information supplied by the selected local file.
- File name
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- File size
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- Extension
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- Browser MIME
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Detection
Format evidence is taken from file content before the extension.
- Detected format
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- Confidence
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- Archive entries
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- Magic bytes
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Detection evidence
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File Hashes
Calculated in a background worker using 2 MB slices.
- SHA-256
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- MD5
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Hex & ASCII Preview
The first 256 bytes of the file.
Printable Strings Preview
Up to 30 ASCII strings found in the first 1 MB.
What the inspector checks
The tool performs static analysis only. It never executes the selected file.
Format detectionMagic bytes, structure and extension agreement.
Binary previewHeader bytes with hexadecimal and ASCII views.
Hashes & stringsLocal fingerprints and readable text previews.
Related Web Tools
Focused views will share the same local-processing principles.