Capture Leads Easier & Faster
with Highly-Personalized Dynamic Campaigns

OptinMonster’s JavaScript variables feature allows you to personalize your campaigns dynamically by using real-time data, significantly boosting engagement and conversions.

Personalize Campaigns in Real-Time with JavaScript Variables

JavaScript variables let you dynamically insert personalized content into your OptinMonster campaigns, creating more relevant and engaging experiences for your visitors.

Dynamic content insertion

With JavaScript variables, you can easily insert dynamic content based on real-time data, ensuring each visitor receives a personalized experience.

  • Display dynamic text, such as the visitor’s name, location, or any custom variable, to make your campaigns more relevant and engaging.
  • Display dynamic offers based on visitor behavior, like showing a discount based on items in their cart.
  • Use any JavaScript variable from your website to create highly personalized campaigns that adapt in real-time.

As a professional marketer with numerous clients, I have exactly .02 seconds per day to work on my own projects. The ability to set up OptinMonster quickly and see its effectiveness the same day is powerful. As an SEO expert, I’m great at getting traffic but converting it was always harder. But NOT ANY MORE!

Brendan Hufford headshot

Brendan Hufford

Owner, BrendanHufford.com

Before OptinMonster, the conversion rate on the Stays.net blog was 1%. Using OptinMonster, we improved it to 6%. We were constantly improving by A/B testing and trying different types of popups. As a result, the conversion rate on the blog is now around 10%. Today, we are able to grow our sales 10% a month with the leads generated by OptinMonster popups.

Lucas Morello

Lucas Morello

Owner at Mareorama Marketing Agency and Head of Digital Marketing at Stays.net

We found a way to entice a percentage of our client’s browsing visitors to enter a giveaway using OptinMonster. Since the beginning of the year, we’ve added 5000 NEW subscribers and over $10K in sales. Without OptinMonster, that wouldn’t have been possible.

Gary Henderson, DigitalMarketing.org

Gary Henderson

Owner, DigitalMarketing.org

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Enhanced user experience

Using JavaScript variables, you can improve the user experience by tailoring your campaigns to each individual visitor, increasing engagement and the chances of conversion.

  • Show offers, messages, or content based on the visitor’s geographic location for a localized experience.
  • Dynamically adapt your campaigns based on user actions, such as showing personalized messages to returning visitors.
  • Pre-fill form fields with information you already know about your visitors, simplifying the opt-in process.

Advanced customization with ease

JavaScript variables give you the power of dynamic content with the simplicity of OptinMonster’s intuitive interface. 

  • Use JavaScript variables from your website or CRM to enhance campaigns without needing complex setups.
  • You can insert dynamic content into any OptinMonster campaign type, whether it’s a popup, slide-in, or inline form.
  • Take advantage of dynamic personalization requiring just enough JavaScript expertise.

Start Getting More Leads & Sales Today with OptinMonster!

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

Drive conversions with personalized, dynamic campaigns

OptinMonster’s JavaScript variables feature lets you personalize your campaigns in real-time, delivering relevant and tailored messages to each visitor. By dynamically adjusting content, offers, and messages based on user behavior, location, or any custom data, you can significantly boost engagement and conversions.

  • Use dynamic content to create personalized experiences for every visitor.
  • Show relevant messages and offers based on real-time data, ensuring a better user experience.
  • Easily implement JavaScript variables with OptinMonster’s user-friendly platform.

Our Customers Love OptinMonster

Don’t take our word for it. See for yourself!

OptinMonster’s robust capabilities have allowed us to circumvent challenges with our custom tech stack, and deploy personalized messaging and optin campaigns at scale. We’ve been very pleased with the results.

Michael Epstein

Chief Marketing Officer , AutoAnything

I own a digital publishing business and we’ve been trying to integrate some new optin systems onto our site for ages but were having so much trouble finding the best system. Then I found OptinMonster and the world is a better place! Your system is so easy to use and is written in a language I understand. It’s a good value for money and it really delivers.

Tim Farthing

Tim Farthing

MD of PLYP.co.uk

OptinMonster is an easy to use, powerful conversion engine with infinite flexibility thanks to its feature-packed builder.

Mateo Sol

Mateo Sol

Owner, LonerWolf


Personalize Campaigns in Real-Time with JavaScript Variables

OptinMonster’s JavaScript variables feature allows you to deliver personalized, dynamic content to your visitors based on real-time data from your website. With this feature, you can display tailored messages, offers, and experiences that adapt to your visitors’ actions and preferences, boosting engagement and driving conversions.

By combining JavaScript variables with OptinMonster’s advanced targeting options, you can ensure each visitor receives the most relevant message at the perfect time. Start using JavaScript variables today to personalize your campaigns and grow your conversions.

Learn more about How to Use OptinMonster’s JavaScript Variables Rule.

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