Regex Editor & Tester

Matches integers in the range 1234 to 2345 inclusive. It works by splitting the range into six alternation branches covering sub-ranges (1234-1239, 1240-1299, 1300-1999, 2000-2299, 2300-2339, 2340-2345). With the global and multiline flags, it validates multiple numeric values line by line, useful for input validation or filtering values within a specific range.