Regex Editor & Tester

Matches a cron schedule expression consisting of exactly five whitespace-separated fields (minute, hour, day of month, month, day of week). Each field may be a numeric value, an asterisk wildcard, or a step combination like '*/5'. This regex is useful for validating basic cron syntax in configuration files or user input, ensuring only supported formats are accepted. With multiline mode, it can validate each line of a crontab-style file.