Regex Editor & Tester

Validates a MIME type (media type) string consisting of a type and subtype separated by a slash (e.g., text/html, application/), optionally followed by one or more parameters like ; charset=utf-8. Commonly used to verify Content-Type header values or API input fields specifying media types. Note it won't match values containing quotes, plus signs (structured suffixes like +), or other special characters in parameter values.