A/B test any website.
Built for speed and simplicity. The ideal A/B testing tool for marketing teams.
Without testing,
you leave money on the table.
Advantages of Stellar
Create variants with our visual editor
No-code visual editor
Install our snippet to access a WYSIWYG editor directly on your site. Works with any website.
Dynamic Keyword Insertion
Personalize your landing pages copy with dynamic keyword insertion. Great for PPC campaigns. Zero coding required.
Custom JS and CSS
Add custom JavaScript and CSS for more granular control over your page. Perfect for advanced tweaks and precise adjustments.
Easy Goal Setup
Set your goals in seconds with a simple interface. Choose from page visits, time spent on a page, or specific user actions—no coding needed.
Advanced Goal Tracking
Track custom user events like button clicks, form submissions, or video plays. Combine multiple goals for a more comprehensive view of performance.
Set your goal in seconds.
Our goal setting is easy yet powerful. Set one based on clicks, page visits or time spent on the page. Zero coding required.
Split test your way to market fit and beyond
Fastest in the market, built for speed and simplicity
Stellar’s script is ultra-lightweight at just 7.5KB, making it up to 15x smaller than competitors like VWO or AB Tasty. Built with pure JavaScript (no jQuery), it ensures minimal impact on your website’s speed and Core Web Vitals. Unlike other tools that grow heavier with each test, Stellar’s fixed-size script keeps your site fast, responsive, and optimized for both user experience and SEO—no matter how many experiments you run.
Why do users prefer Stellar?
Anna R. — CRO Specialist
⭐️⭐️⭐️⭐️⭐️
"Stellar is exactly what we needed. We switched from other testing tools because they were too complex and costly. With Stellar, we ran our first test in under 10 minutes, no developer required. Our conversions increased by 30% in just a few weeks. It’s fast, lightweight, and the support team is amazing."
David L. — Growth Marketer
⭐️⭐️⭐️⭐️⭐️
"I’ve tried VWO and Optimizely, but Stellar stands out for its ease of use and simplicity. The script is super lightweight, and there’s no impact on our site speed. Setting up tests was quick, and the visual editor made it easy to adjust our pages without any coding. It’s been a game-changer for our marketing team."
Sarah M. — E-commerce Owner
⭐️⭐️⭐️⭐️⭐️
"We needed a Google Optimize replacement, and Stellar exceeded our expectations. The tool is intuitive, and the onboarding was seamless. The reporting is clear, and the results helped us increase our sales by 20% in the first month. Highly recommend for anyone serious about improving their website performance."
Alex T. — Product Manager
⭐️⭐️⭐️⭐️⭐️
"Stellar is the best A/B testing platform I’ve used. It’s lightweight, fast, and integrates perfectly with our existing setup. The visual editor is fantastic—our team was able to create and launch experiments without any dev assistance. We saw a 25% uplift in our signup conversion rate within weeks. Great tool!"
Maria P. — Digital Marketing Director
⭐️⭐️⭐️⭐️⭐️
"Stellar is a breath of fresh air. It’s clutter-free and does exactly what you need without the unnecessary features. The script is small and doesn’t slow down our site, which was a big concern for us. The support team is responsive and knowledgeable. We’ve already recommended Stellar to other teams."
Pricing
Starter
Up to 25k MTU
Basic support
Growth
Up to 50k MTU
Priority support
Enterprise
Up to 100k MTU
Priority support