Regex Editor & Tester

This regex matches the abbreviation "ft" optionally followed by a double quote (the ? quantifier allows zero or one occurrence, as in the feet/inches notation 5'9"), as well as the full words "foot" or "feet". With the g, m, and i flags, it finds all matches case-insensitively across multiple lines. It's commonly used for extracting or detecting length measurements and units of distance in text parsing.