If you want to validate the input of a form, you can use the HTML built-in validation features for it.

No third party library is required.

Open this example on CodeSandbox:

This example shows how to use the built-in HTML5 validation features.

Check app/root.tsx to see the client-side validation in action.

• The Input (Form Input) element in the MDN Web Docs
• The HTML5 input types in the MDN Web Docs
• Client-side Validation in the MDN Web Docs
• Form Validation in the Remix Docs
• Client-side Validation in the Remix Docs