Build a custom online form with field validation to prevent invalid submissions. Jotform offers several methods for validating fields and setting form rules, so you can always ensure that people fill out your form correctly.
Get the data you need and make sure users fill out your forms correctly. Require certain form fields, set form field limits, verify email addresses, add conditions or widgets, and set up pattern-side, server-side, or client-side validation.
Prevent incomplete or incorrect form submissions by automatically validating form fields. Jotform offers several validation methods to ensure that you collect valid data from everyone who fills out your form.
Check form submissions with server-side validation. After users press the submit button, notify them if they’ve missed anything on your form.
Encourage form completion with client-side validation. Alert users immediately when they’ve missed or incorrectly completed a form field so they can quickly correct their mistakes.
Validate form fields by setting rules. Limit checkbox selections, dates, file attachments, and more.
Validate submissions and set other field limits with Jotform’s 20+ free verification widgets. Add a CAPTCHA, get e-signatures, verify addresses, send confirmation codes, and much more.
Learn more about the different types of form validation and how to set it up properly to ensure your form submissions are complete.
Demo Feature: Conditional Logic Demos
Encourage users to elaborate on their answers when collecting surveys or feedback — for example, if a user states that they were dissatisfied with something on an event satisfaction survey, you can show a text box to allow them to explain further.