Lightweight Contact Form vs Omusubi

This is the absolute lightest contact form for WordPress. This plugin is designed for the fastest pagespeed. So, there is no CSS stylesheet, no extra files, and no overhead. And no spam. It uses Google reCAPTCHA v3 so as not to annoy your users with any extra step, while keeping your contact form spam-free. If all you need is a simple contact form to take messages from site visitors, and fast page speed is your priority, this minimal plugin is for you. Although this form is lightweight and simple, it blocks SPAM, and has both client-side and server-side validation. This is a solid and dependable contact form. NOTE: To make use of the extra spam protection from Google reCAPTCHA v3, you must get your reCAPTCHA v3 API keys from Google. This is a free and easy step, and is strongly recommended. Features Emails are sent to the admin email which is set in your WordPress General Settings. Add the contact form to any page with a shortcode. Both JavaScript client-side and PHP server-side validation. It’s just one file. No extra CSS or JavaScript files. This is for the most lightweight footprint. You must add any CSS styling yourself. This is easy and is explained in the installation guide. (In addition, if you need extra fields or different forms for different pages, see the Advanced: Add Custom Form Fields section.)

Omusubi is a powerful WordPress form plugin with a visual builder right in the admin screen. With just clicks and drag-and-drop, you can build the variety of forms a business actually needs: contact forms, lead capture forms, surveys, prize entries, recruitment applications and more. Submissions are managed from a tabular view in the admin and can be exported as CSV. Slack notifications, Google Sheets integration, reCAPTCHA, time-limited acceptance windows — everything you need for day-to-day operation is bundled in a single plugin. Key features Form building Drag-and-drop visual builder — 15+ field types (text, email, phone, postal code, textarea, select, radio, checkbox, number, date, time, URL, file, heading, separator, hidden) 12 templates — contact / lead capture / survey / event signup / recruitment / reservation / prize entry / quote request / free consultation / trial lesson / product order / press inquiry 2-column layout — place two fields on the same row Conditional display — show/hide fields based on the value of other fields Shortcode support — paste [omusubi id="1"] into any post or page Notifications & integrations Admin notification + auto-reply emails — customizable subject and body Slack notification — push submissions to a specified channel in real time via Incoming Webhooks (v1.1) Google Sheets integration — append each submission as a new row via Apps Script Web App, just like Google Forms (v1.1) SMTP support — reliable delivery via Gmail / SendGrid / any SMTP server Google reCAPTCHA v2 / v3 — spam protection built in, with score thresholds adjustable from the admin Operation Tabular submission management — status workflow (Unread / Read / Replied / Archived), CSV download (opt-in, disabled by default) Time-limited acceptance — for campaigns like prize giveaways, reject submissions outside a configured window Auto-generated preview page — verify the actual layout before publishing Privacy policy consent — custom text, URL link, or inline body accordion Japanese form optimizations Half-width input enforcement — automatically convert full-width to half-width on email, phone and postal-code fields Postal-code → address autofill — enter a 7-digit postal code and click to populate the address (uses the Zipcloud API; see “External services” below) Full Japanese support — UI, templates, and error messages all available in Japanese via the bundled omusubi-ja.mo Design customization Design tokens — 9 structured tokens for radius / field style / label position / button shape / spacing / font / required marker etc. (v1.2) Theme color picker — 8 presets plus a freeform color picker omusubi_form_inline_css filter — extend CSS dynamically from your theme or a site-specific plugin (developer-oriented) Simple workflow Click “Create new form” from the Omusubi menu Pick a template or start from blank Drag and drop fields into place Configure mail notifications and design Save, copy the shortcode, and paste it into any page Browser support All modern browsers (latest Chrome, Firefox, Safari, Edge). Internet Explorer is not supported.