Anyone operating an internet business needs to focus on building an email list as soon as possible. Whether a blogger or an e-commerce entrepreneur, building a fan base is easier with an email list. In this post, you will learn about some of the Best opt In Form Plugins For WordPress. 
Opt-in Plugins for WordPress: The Best Plugins
1. Bloom
Get this plugin: Bloom
Bloom from Elegant Themes helps you design popups, slide-ins, inline opt-in forms, and sidebar opt-ins with pre-designed templates. Advanced triggers include “after commenting,” “after purchasing,” “after a click,” and scroll percent. Includes A/B testing.
Also Read: Bloom Plugin Latest Review
2. Thrive Leads
Get this plugin: Thrive Leads
A robust WordPress opt-in solution with inline, lightbox, post footer, ribbon, screen filler, scroll mat, slide-in, and sidebar forms. Extensive A/B testing lets you test form types, triggers, and more.
Also Read: Are Email Subscription Widgets Still Useful for eCommerce?
3. Popup by Supsystic
Get this plugin: Popup by Supsystic
Focuses exclusively on popups, email opt-ins, contact forms, social buttons, video/PDF embeds, notification bars, and age verification gates.
Also Read: 5 Best Lead Generation Plugins
4. Convert Pro
Get this plugin: Convert Pro
Premium opt-in plugin with drag-and-drop editor, inline/after-post forms, widget opt-ins, info bars, and full-screen pop-ups. Advanced triggers include exit intent, scroll, inactivity, and A/B testing.
5. Icegram
Get this plugin: Icegram
Beyond opt-in forms, Icegram creates call-to-action sections, sales promotions, and cart recovery popups. Variety of design templates and triggers.
Also Read: Best WordPress Email Subscribers Plugins
6. OptinMonster
Get this plugin: OptinMonster
Feature-rich with popup, slide-in, countdown timer, scroll mat, sticky ribbon, sidebar, content locker, and coupon wheel forms. Smart triggers based on referrers, geolocation, device, cookies, and more. All major email marketing platforms supported.
Also Read: Leading OptinMonster Alternatives
Conclusion
These are the best opt-in form plugins for WordPress. Using these plugins, you can develop opt-in forms that are visually appealing and have a high conversion rate. Make sure the plugin you choose satisfies all of your needs.
Updated on March 14, 2026
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