UnQTools
File Runs in your browser

File Type Detector

Detect true file type from magic bytes (signature), not extension. 200+ signatures, MIME type, extension suggestion, and 10+ extras. 100% private.

100% Private Works Offline Instant

Detect true file type from magic bytes (signature), not extension. 200+ signatures, MIME type, extension suggestion, and 10+ extras. 100% private. Everything runs locally in your browser — your data never leaves your device.

How to use

  1. Enter your input in the tool above.
  2. Adjust any options to your preference.
  3. Use the Copy or Download buttons to save the result.
  4. Everything happens locally — your data never leaves your browser.
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