About File Type Detector
File Type Detector is a free, fast and reliable online tool. Detect a file type from magic bytes. Everything runs locally in your browser — no files are uploaded and no data is stored, keeping your information completely private. It works responsively on both desktop and mobile devices.
How to use File Type Detector
- 1 Upload your file
- 2 Click "Convert"
- 3 Review the result and click "Copy"
Frequently asked questions
Is File Type Detector free to use?
Yes — File Type Detector is a free online tool. No sign-up or login is required, and there are no hidden charges or usage limits.
Do I need to create an account to use File Type Detector?
No. File Type Detector runs entirely online in your browser — there is no account to create, no login, and nothing to install.
Does File Type Detector upload my data?
No. Everything runs locally in your browser. Your input never leaves your device, is never stored, and is never tracked, so it stays private.
Free, online, and private
Free to use
File Type Detector is completely free. There is no account to create, no login, and no hidden charge or usage limit.
Runs online in your browser
It is a free online tool that runs entirely in your browser. Nothing to download or install — open the page and start using it right away.
Your data stays private
All processing happens locally on your device. Your input is never uploaded, stored, or tracked, so it never leaves your browser.