Robuta

https://openuserjs.org/garage/Forging_content_type_mime_type
Forging content type / mime type
content typeforgingmimediscussionsopenuserjs
https://regex101.com/library/I8ZpUk?orderBy=MOST_RECENT&page=1&search=&filterFlavors=rust&filterFlavors=pcre&filterFlavors=javascript&filterFlavors=python
Search, filter and view user submitted regular expressions in the regex library. Over 20,000 entries, and counting!
mime typeparser
https://www.mediawiki.org/wiki/Manual:MIME_type_detection
mime typemanualdetectionmediawiki
https://wordpress.org/support/plugin/cf7-mime-type-check/
mime typecontact formchecksupportwordpress
https://mime.wcode.net/image/x-nikon-nef
There are usually 1 types of file extensions (filename suffixes) of type image/x-nikon-nef MIME: .nef
mime typefile extensionimagenikonnef
https://contenttype.net/?ref=http.dog
Check the Content-Type header of any URL. Validate if the MIME type matches the file extension.
content typemime typescheckvalidate
https://www.webapp2app.com/2025/11/19/taming-inputtypefile-on-android-webview-camera-intents-multiple-selection-and-mime-handling-with-webviewgold-java/
android webviewtaminginputtypefile
https://www.rfc-editor.org/rfc/rfc1563.html
mime content typerfctextenriched