Ninja Forms Review: Features and Common Conflicts

Ninja Forms is a capable builder, but users frequently report CSS conflicts with themes and limitations when calculating totals for payment gateways.

Based on 3 community reports.

Linked sources: 3.

Known Issues

• CSS specificity conflicts with themes
• Checkbox values failing to output to calculations
• Stripe integration issues with non-standard payment fields

Community Q&A

Is Ninja Forms compatible with all WordPress themes?

While generally compatible, users often report CSS specificity conflicts that require custom scoping to ensure forms render correctly.

Why is my Stripe total not calculating in Ninja Forms?

Stripe requires the total to be pulled from a specific Payment field; standard checkbox fields often fail to pass values to the calculation engine.

Reddit Sources

• 400+ Websites That I Use as a Web Designer/Freelancer - All Compiled and Categorized in One Place (r/webdev)
• Spent hours trying to get checkboxes to work with Go Theme… only to remember I solved the same problem two years ago. (r/Wordpress)
• [REVIEW] WPForms vs. Ninja Forms: Which One Is The Best Form Builder? (r/WordpressPlugins)