MIME Type Checker
Detect the server-reported MIME type, extension and basic file information for an uploaded file.
About MIME Type Checker
Detect the server-reported MIME type, extension and basic file information for an uploaded file. PHP fileinfo inspects the uploaded bytes to determine the server-detected MIME type and reports the original extension and size.
How to use MIME Type Checker
Upload a file and run the inspector. ToolFlow uses server-side fileinfo detection to report MIME type alongside the original extension and byte size.
When MIME Type Checker is useful
- Use MIME Type Checker as a quick technical helper during development, file handling or troubleshooting.
- Generate or inspect a value without installing a separate desktop utility.
- Copy the result into another workflow after checking any application-specific requirements.
Practical tips
- Copy the generated result into a secure destination if it will be used as a credential or token.
- For checksums and file information, compare results only against the exact same file bytes.
- Treat generated values as workflow helpers; validate them against application-specific requirements where necessary.
MIME Type Checker FAQ
Does MIME Type Checker change my original input?
No. ToolFlow works on a temporary upload or submitted value and returns a separate result. Your local original is not overwritten.
Do I need to install software to use MIME Type Checker?
No browser extension or desktop application is required. Some file tools depend on server modules such as FFmpeg, GD, Poppler or LibreOffice being enabled by the site operator.
Confidentialité et gestion des fichiers
Uploaded files are processed in temporary server storage. ToolFlow attempts to delete temporary source and output files after processing or delivery. Do not upload material you are not authorized to process. See the Politique de confidentialité for details.