Form Plant is a WordPress contact form plugin built around three pillars: practical defaults, layered spam protection, and strong Japanese-locale support.

Ready out of the box — Confirmation screen, submission storage, and CSV export are standard features, not paid add-ons. Publish a working form in minutes.

Spam protection in depth — Combine honeypot, time-based validation, IP rate limiting, disposable email blocking, Google reCAPTCHA (v2/v3), and Cloudflare Turnstile. Start with the lightweight defaults that work without any account setup; add reCAPTCHA or Turnstile only when you need them.

Built for Japanese sites — Postal code lookup with address auto-fill, per-part name/kana validation, and Japan-specific address templates. A modern alternative for sites migrating away from MW WP Form.

Many form plugins require extra extensions for confirmation pages or data management. Form Plant includes these essentials from the start.

Why Form Plant?

Confirmation screen included — Let users review their input before submitting. No extra plugin needed.
Submission data storage — All form entries are saved in the database and manageable from the admin panel.
CSV export — Download submission data anytime for reporting or backup.
Embed on external sites — Display your forms on any website via iframe or JavaScript snippet, not just within WordPress.
Quick setup — An intuitive modal UI lets you build forms without touching code.
Flexible customization — Custom HTML templates, validation messages, and post-submission actions give you full control when you need it.

Features

Intuitive modal UI for field configuration
Block editor (Gutenberg) integration — pick a form from a dropdown using the dedicated “Form Plant” block
Email notifications (admin notification and auto-reply)
Custom HTML template support
Confirmation screen before submission
Custom validation messages
Post-submission actions (message / custom HTML / redirect)
Two types of date input (calendar / dropdown)
Postal code lookup that auto-fills address fields (Japan)
Multiple spam protection options: honeypot, time-based check, IP rate limit, disposable email blocking, Google reCAPTCHA v2/v3, Cloudflare Turnstile
External site embedding via iframe / JavaScript
Multiple custom CSS file uploads and design presets
Submission data storage and management
CSV export of submission data
File upload support

Supported Field Types

Text
Textarea
Email
Phone
Number
URL
Name (parts)
Name (Kana)
Postal Code (with address auto-fill)
Address (Japan / international)
Prefecture
Date (Calendar)
Date (Dropdown)
Time
Password (with optional strength meter)
Select
Checkbox
Radio
File Upload
Hidden
HTML

External Services

This plugin optionally integrates with Google reCAPTCHA (v2 Checkbox and v3 Score-based) for spam protection:

Service: Google reCAPTCHA
API Documentation (v2): https://developers.google.com/recaptcha/docs/display
API Documentation (v3): https://developers.google.com/recaptcha/docs/v3
Terms of Use: https://policies.google.com/terms
Privacy Policy: https://policies.google.com/privacy

When reCAPTCHA is enabled in form settings, this plugin will:
– Load the reCAPTCHA JavaScript library from Google’s servers (https://www.google.com/recaptcha/api.js)
– Send form submission data to Google for spam analysis
– Include user’s IP address and browser information in the request

reCAPTCHA is disabled by default and requires explicit activation by the site administrator.

This plugin also optionally integrates with Cloudflare Turnstile for spam protection:

Service: Cloudflare Turnstile
API Documentation: https://developers.cloudflare.com/turnstile/
Terms of Use: https://www.cloudflare.com/terms/
Privacy Policy: https://www.cloudflare.com/privacy/

When Turnstile is enabled in form settings, this plugin will:
– Load the Turnstile JavaScript library from Cloudflare’s servers
– Send form submission tokens to Cloudflare for verification
– Include user’s IP address and browser information in the request

Turnstile is disabled by default and requires explicit activation by the site administrator.

This plugin also uses the zipcloud postal code lookup API to auto-fill Japanese addresses when a user enters a postal code in a Postal Code or Address (Japan) field:

Service: zipcloud (郵便番号検索API)
API Endpoint: https://zipcloud.ibsnet.co.jp/api/search
Service Information: https://zipcloud.ibsnet.co.jp/doc/api
Terms of Use: https://zipcloud.ibsnet.co.jp/rule/api

When the user types a 7-digit postal code, the form’s JavaScript sends a request from the visitor’s browser to the zipcloud API to retrieve the corresponding prefecture / city / town information and populate the address fields. Only the postal code is sent — no personal information is transmitted. The lookup runs only when a Postal Code or Address (Japan) field is present in the form, and runs in the visitor’s browser, not from the server.

Third Party Resources

This plugin includes a list of disposable email domains for spam protection:

Source: disposable-email-domains
License: CC0 1.0 Universal (Public Domain)
Usage: Emails from disposable/temporary email services are automatically blocked during form submission

The list is bundled with the plugin and does not make any external requests.