fValidate

Validate huge forms in just minutes! Easy to add your own validation types. Validates blanks, numbers, length minimums, decimals, money, selects, checkboxes, radio buttons, phone numbers, zip codes, email addresses, IP addresses, SSNs, dates, file uploads, credit cards and more, including logical validation such as comparisons. Validate data without requiring field. Toggle reset/submit button disabling, toggle send confirmation, and setup for one by one or group error modes. CSS-based error notification with 29 separate error-modes. NEW -- language files for i18n support. Low namespace footprint for maximum compatibility with other scripts. Full documentation and API on the website.