Grow Your Email List Twice as Fast
with Fully Customizable Sidebar Forms

Turn your website’s sidebar into a lead-generating powerhouse with OptinMonster’s Sidebar Forms. Capture more email subscribers and boost conversions without disrupting your visitors’ experience.

Effortlessly Convert Readers into Subscribers

Capture casual readers and turn them into loyal subscribers and paying customers. Our customizable forms fit seamlessly into your website’s sidebar—right where visitors expect to find them—to create a smooth and intuitive experience.

Create eye-catching Sidebar Forms in minutes

Design professional-looking forms that match your brand and attract attention.

  • Start with one of our 90+ Inline Form templates, or design your own from scratch.
  • Quickly customize your campaign in our easy-to-use drag-and-drop builder.
  • Add your campaign to your website’s sidebar and start converting visitors right away.

OptinMonster played a huge role in growing my email list from 0 to 11.3k in my blog’s very first year. Before OptinMonster, I was getting just a few email subscribers/day – now I’m adding over 3,000 subscribers to my list every month. It’s also great for custom page-level affiliate offers to drive sales. I can’t recommend it enough.

adam enfroy headshot

Adam Enfroy

Owner, AdamEnfroy.com

OptinMonster has been a game-changer for us. From driving donations to collecting new leads, there is nothing that this simple tool has failed to accomplish. Our lead collection rate has jumped by over 1,000%.

joe lowe american bird conservancy

Joe Lowe

Director of Digital Communications, American Bird Conservancy

OptinMonster has had a snowball effect. My traffic goes up the more people I have in my email list, and I’m also able to generate new quality leads on a monthly basis. Some months, I add as many as 1000 new subscribers to my list – with no paid promotions.

Lilach Bullock

Entrepreneur

Popular

Generate leads on every page

Make the most of your website’s real estate by displaying targeted offers on every page.

  • Capture leads from anywhere on your site.
  • Increase conversions with Sidebar Forms that are accessible and easy to find.
  • Use Page-Level Targeting to show relevant offers based on each visitor’s interests.

Personalize your Sidebar Forms for maximum impact

Tailor your campaigns to specific audience segments for higher conversion rates.

  • Use smart targeting rules to display personalized offers.
  • Show different messages to returning visitors and existing subscribers, nurturing them through your sales funnel.
  • Create automated follow-up sequences with OptinMonster’s OnSite Retargeting®.

Start Getting More Leads & Sales Today with OptinMonster!

Create and launch smart capture forms today in minutes. What are you waiting for?

Optimize campaigns with data-driven insights

Improve your Sidebar Form performance with OptinMonster’s powerful analytics and testing tools.

  • Use OptinMonster’s built-in split testing to find the most effective designs and copy.
  • Track conversion rates and identify top-performing forms.
  • Utilize data insights to make the most of every campaign on your site.

Our Customers Love OptinMonster

Over a million websites use OptinMonster’s Sidebar Forms, Lightbox Popups, and other campaigns to grow their email lists and drive sales.

Every time we implement OptinMonster for ourselves or for a client of ours, the result ends up being more leads and revenue every time. It is one of our team’s favorite lead generation tools. Our conservative calculation puts our return on investment from using OptinMonster at 49,900%!

Roman Randall

Founder, Summit Digital Marketing

OptinMonster is one of the best tools for digital marketing available. We increased conversions 300% using OptinMonster. It also helped decrease our bounce rate because the popups were seamless and slick.

Maruti Konduri

Head of Marketing

OptinMonster is a great marketing funnel tool for every online business. In the first month alone, we tracked over 5,000 impressions on our site powered by OptinMonster, and it soared to over 38,000 the month after that. Our best campaign has over 157,000 impressions.

Brittany Pollock

Content Coordinator, Flywheel


Make Your Sidebars Work for You

OptinMonster’s Sidebar Forms are a powerful tool for growing your email list and increasing conversions across your website. Sidebar Forms provide a subtle yet effective way to capture leads without disrupting the user experience. By placing these customizable forms in your website’s sidebar, you can turn every page into a lead-generation opportunity.

With OptinMonster’s easy-to-use drag-and-drop builder and pre-designed templates, you can create professional-looking sidebar forms in minutes. Our advanced targeting options let you display personalized offers based on user behavior and interests. This level of customization ensures that your sidebar forms are always relevant and appealing to your visitors, increasing the likelihood of conversions.

To add a Sidebar Form to your site, start by following our step-by-step instructions for creating an Inline campaign. If your site is built on WordPress, it’s easy to add your campaign as a sidebar widget. OptinMonster is fully functional on every type of website, so you can use Sidebar Forms no matter which platform you use.

It’s important to note that Sidebar Forms often don’t have impressive conversion rates. However, they’re an important part of a website’s overall lead-generation strategy. Combine them with OptinMonster’s lightbox popups, floating bars, and other onsite campaigns to convert your website visitors into subscribers and customers.

Start Getting More
Leads & Sales Today
with OptinMonster!

Popups work, and you can get started for a few bucks a month. What are you waiting for?

Create and launch smart capture forms
today in minutes. What are you waiting for?

In only 7 months, we added more than 95,654 names to our email list using OptinMonster’s Exit Intent™ technology. We strongly recommend it!

Michael Stelzner - Best Lead Generation Tool

Michael Stelzner

Founder Social Media Examiner

I hate popups, so I was hesitant to try one on my site. But the results from OptinMonster exit-intent popup speak for themselves. I doubled my subscription rate immediately without annoying my users. I haven’t had a single complaint. My only regret is that I didn’t start using OptinMonster sooner. I can only imagine how many subscribers I could have added to my email list! If you have a blog, then I highly recommend you start using OptinMonster. I’ve researched them all, and it’s the best in market.

Michael Hyatt - WordPress Lead Generation

Michael Hyatt

New York Times Bestselling Author Platform: Get Noticed in a Noisy World

Exit-intent popups have doubled my email opt-in rate. When done right, you can see an instant 12% lift on driving sales. I highly recommend that you use OptinMonster for growing your email list and sales.

Neil Patel - WordPress Popup Plugin

Neil Patel

Founder QuickSprout