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Encraft is an online tools website with free and practical utilities to improve day-to-day productivity.
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Data & Privacy
We respect your data. Uploaded files and inputs are automatically deleted, and processed data is removed within a day.
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Identify a file’s format, MIME type, recommended extension, category, and size from its contents.
Runs in your browser — your input is processed on this device and never uploaded.
Secondary information and sharing actions for this public tool.
Upload a file to inspect its contents. The result reports:
The detector reads file bytes rather than trusting the filename or extension, and scans at most the first 64 KiB. It can distinguish several container-based formats, including DOCX, XLSX, EPUB, and APK. Unknown data falls back to a generic binary result.
Content-based identification is useful, but it is not a malware scan and does not prove that a file is safe or valid. If a file is identified as CSV, use CSV Validator to check its tabular structure.
file
Upload a file to identify from its contents.
Drag a file here, or click to upload.
Max size 60 MB · Required
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