An opt-in form is a form on your website where visitors enter their email address (and sometimes name) to subscribe to your email list or receive a lead magnet. It’s the gateway between your website traffic and your email marketing strategy.
Types of Opt-in Forms
- Inline forms: Embedded within blog post content or on a dedicated page
- Popups: Appear after a delay, on exit intent, or after scrolling
- Slide-ins: Slide in from the corner after a trigger
- Sticky bars: Fixed at the top or bottom of the screen
What Makes an Opt-in Form Convert?
- A clear, specific offer: tell people exactly what they’re signing up for
- A compelling lead magnet (free checklist, course, template)
- Minimal fields: just email, or name plus email
- A strong call to action on the button (“Send My Free Guide” beats “Submit”)
WordPress Tools for Opt-in Forms
Popular options include Thrive Leads, OptinMonster, ConvertBox, and the built-in forms from email platforms like ConvertKit or Mailchimp. Most come with A/B testing features so you can optimize your conversion rate over time.
Related: Email Marketing
Related: Lead Magnet
