Ninja Forms – WordPress Form Builder Plugin

Rating★★★★ 4.4/5
Version3.15.3
PriceFree
Active Installs600,000+
Tested up toWP 7.0.4

Ninja Forms is the modular form builder: a free, capable core extended through official extensions for payments, CRM connections, and workflow features. Its positioning sits between the friendly simplicity of HappyForms and the complexity ceiling of Gravity Forms – the drag-and-drop builder handles real conditional logic and multi-step flows, while the extension model lets you buy capabilities à la carte rather than in tiers. The layout-and-fields engine includes repeater fields, calculations, and multi-language support, and entries manage with full editing – submissions are not just read-only logs.

The 3.15.x releases show a team actively hardening: a two-tier permission model in the Abilities API, unserialize() input validation, shortcode-bracket neutralization in merge tags (both responsibly disclosed), plus workflow fixes for newsletter actions, CSV exports with special characters, and non-Latin list field values. For a form plugin, that security cadence across three consecutive releases is the trust signal that matters.

Competitive Features

  • Modular extension model – buy capabilities as needed over a free core
  • Conditional logic – show/hide and routing with AND/OR conditions
  • Multi-step forms – paginated workflows with progress indication
  • Calculations and repeater fields – dynamic totals and repeated groups
  • Full entry editing – submissions editable after submission
  • Multi-language forms – non-Latin characters handled correctly (3.15.1)
  • Security-hardened (3.15.x) – consecutive releases addressing permission and validation issues

Key Features

  • Drag-and-drop builder – visual field arrangement with live preview
  • Email routing – notifications conditioned on form values
  • Payment extensions – Stripe and PayPal collection add-ons
  • CRM connections – Mailchimp, ActiveCampaign, Salesforce extensions
  • CSV export – submission exports with correct character encoding (3.15.3)
  • Webhook support – submissions to external endpoints
  • Shortcode and block embedding – placement anywhere

Comparison with Competitors

Ninja Forms Premium vs HappyForms

Aspect Ninja Forms Premium HappyForms
Extension model Modular add-ons Complete core, no add-ons
Entry editing Full edit capability Standard management
Conditional logic Advanced Basic
Learning curve Moderate Minimal
Best for Growing form workflows Simple contact forms

Bottom line: HappyForms is the lightweight contact-form answer; Ninja Forms Premium suits sites that want the modular path – start free, add extensions as requirements appear – or need full post-submission entry editing.

Ninja Forms Premium vs Gravity Forms

Aspect Ninja Forms Premium Gravity Forms
Maturity Long-established Longest track record
API depth Good Deepest
Billing model Modular add-ons Tiered licenses
Ecosystem Solid Largest
Conditional logic Advanced Advanced
Developer surface Documented Extensive

Bottom line: Gravity Forms keeps the deepest developer API and largest ecosystem; Ninja Forms counters with modular pricing and full entry editing. Complex custom integrations still lean Gravity Forms; cost-flexible form stacks lean Ninja Forms.

Recommended Stack – form submissions feed marketing automation: connect Ninja Forms to MailPoet Premium so entries flow into email segments without exports.

Official Changelog

Version 3.15.3

Release Date: September 7, 2026

  • Security: Strengthened input validation for unserialize() operations.
  • Fix: Preserve newsletter action list selection when the provider connection is temporarily unavailable.
  • Fix: Encode special characters correctly in CSV submission exports.
  • Fix: Allow optional and hidden Date/Time fields to submit correctly.

Version 3.15.2

Release Date: August 31, 2026

  • Security: Enforced granular two-tier permission model in the Abilities API (responsibly reported by ChinhNguyen).
  • Security: Neutralized shortcode brackets in IP address and referer URL merge tags (responsibly reported by Jakub Herman).
  • Security: Validate repeater child field entries against server-side definitions.

Version 3.15.1

Release Date: August 24, 2026

  • Security: Strengthened input validation for list field option imports.
  • Fix: Allow non-Latin characters and special symbols in list field option values.
  • Fix: Preserve HTML formatting in checkbox and radio list option labels after editing.
  • Fix: Capture time values correctly for Date/Time fields.

Frequently Asked Questions

Is Ninja Forms free?
Yes – a free core on WordPress.org covers standard forms. Premium extensions add payments, CRM connections, and advanced workflow features, purchased à la carte rather than in license tiers.

Why three security releases in a row?
The 3.15.1-3.15.3 series addressed responsibly disclosed issues – permission models in the new Abilities API, merge-tag injection, and import validation. The rapid cadence with credited reporters is the security process working, and staying current on this line matters.

Can I edit submissions after they arrive?
Yes – full entry editing distinguishes Ninja Forms from builders where submissions are read-only records. Useful for support workflows and data correction.

Does it support multi-language forms?
Yes – the 3.15.1 release specifically restored non-Latin character support in list field options, and the builder is translation-ready for multilingual sites.

Can I collect payments?
Yes, through payment extensions – Stripe and PayPal add-ons handle one-time and subscription collection within the modular model.

Download the ZIP from the version buttons above, then go to Plugins → Add New → Upload Plugin, choose the file and click Install Now. Activate the plugin and you are done. Full walkthrough on our How to Install page.

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