10 Best FREE A/B Testing Tools (2025)

Best A/B Testing Tools

A/B testing tools (also called split testing tools), are used to create and compare two web page variants, A and B. These tools provide statistical analysis to determine which variant performed better for a specific conversion goal.

With over 120 hours of research behind me, I have carefully examined 45+ Best FREE A/B Testing Tools and curated a trusted selection. This in-depth, well-researched guide offers unbiased details, including free and paid options, to help you make the best choice. This may help you find a tool with the right features and pricing. Read the full article to discover must-see insights.
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Top Pick
Zoho PageSense

With Zoho PageSense, you can create variations of your webpage/elements and run AB tests. Define metrics you want to track during your A/B tests, such as conversions, CTRs, revenue, engagement, or other KPIs that align with your objectives;

Visit Zoho PageSense

Best FREE A/B Testing Tools: Top Picks!

Name Free Trial Link
👍 Zoho PageSense: AB testing 15-Day Free Trial (No credit card required) Learn More
Unbounce 14-Day Free Trial Learn More
VWO Lifetime Free Basic Plan Learn More
Optimizely Lifetime Basic Free Plan Learn More
Omniconvert Lifetime Free Basic Plan (No credit card required) Learn More

1) Zoho PageSense: AB testing

Zoho PageSense is great for running AB tests. I could create page variations and track conversions, CTRs, or other key metrics. I also liked how it lets you edit and optimize pages after choosing the top choice. This remarkable tool covers mobile, desktop, and tablet versions.

#1 Top Pick
Zoho PageSense
5.0

Best for small to large businesses

Drag and Drop Editor: Yes

Integrations: Mixpanel, Zoho Sites, Google Analytics, Google Ads etc.

Free Trial: 15-Day Free Trial (No credit card required)

Visit Zoho PageSense

Features:

  • Audience Segmentation: I found it simple to segment my audience based on various criteria such as traffic sources, location, or device type.
  • Performance Tracking: You can view detailed reports on A/B test performance, tracking key metrics and user behavior insights.
  • Heatmap Integration: Enable heatmaps in tests to discover how visitors interact with each variation, helping you analyze behavior.
  • Conversion Forecast: Follow a conversion forecast that allows you to make data-driven decisions even before the test ends.
  • CRO Tools Bundle: PageSense offers A/B testing as one of its more than 10 CRO tools available at an affordable price.

Pros

  • User-friendly interface simplifies creating and managing A/B tests
  • Real-time analytics provide immediate insights into test performance
  • Customizable testing options allow tailored experiments for various needs

Cons

  • I received occasional glitches during test implementation and analysis
  • The pricing can be high for larger teams or enterprises

How to Get Zoho PageSense for Free?

  • Go to the official Zoho PageSense website.
  • Sign up for an account and choose the 15-day free trial option to explore the platform’s features.
  • After signing up, you can use all the premium features during this trial period without any upfront payment.
  • If you decide not to continue after the trial, simply cancel before the trial ends to avoid any charges.

Visit Zoho PageSense

15-Day Free Trial (No credit card required)


2) Unbounce

Unbounce is the ideal A/B testing tool. I could compare my landing pages, ads, and content with ease. It also allowed me to increase conversions with AMP. I found it to be impressive.

Unbounce

Features:

  • Page Customization: It enables you to customize any web pages with just a few clicks for improved user experience.
  • HTML, CSS, & JavaScript Integration: This application allows you to add custom HTML, CSS, and JavaScript easily to enhance page functionalities.
  • Template Selection: Unbounce provides over 100 customizable templates, allowing you to design landing pages more effectively.
  • Professional Images: It offers professional-grade images sourced from over 1,000 photographers, perfect for creating visually appealing content.
  • Mobile Page Customization: I could easily customize my mobile pages with this tool, providing a seamless user experience across devices.
  • SVG Graphics: You can add high-quality SVG graphics, ensuring your visuals remain sharp and scalable on any screen.

Pros

  • Drag-and-drop builder simplifies landing page and A/B test creation
  • Extensive template library offers various options for different campaigns
  • I benefitted from using its dynamic text replacement for better targeting
  • Integrates with numerous marketing tools for seamless workflow management

Cons

  • Limited features in the free trial restrict testing capabilities
  • A learning curve exists for optimizing complex campaigns effectively

How to Get Unbounce for Free?

  • Visit the official Unbounce website.
  • Sign up for an account and select the 14-day free trial option to access all features.
  • If you choose not to continue after the trial, be sure to cancel before the end date to avoid charges.

Link: https://unbounce.com/product/ab-testing-tool/


3) VWO

VWO Testing lets you try different variations on your site. I could see the top-performing versions. The awesome report customization with graphs and loss details gave me a clear view of the results.

VWO

Features:

  • Behavior-Based Testing: I could run tests based on visitor behavior, such as time spent on a page or element clicks.
  • Advanced Code Editing: It provides an advanced code editor, allowing you to make complex changes with ease for customization.
  • CSS Customization: You can make CSS changes, including background colors, font styles, and borders, for enhanced visual appeal.
  • Statistics for Decision Making: It offers statistics that help reduce testing time and provide actionable insights for business decisions.
  • Metrics Tracking: You can track multiple metrics to evaluate A/B testing results effectively and improve overall performance.

Pros

  • Comprehensive A/B testing tools offer robust experimentation capabilities
  • Intuitive interface allows easy navigation and test setup for beginners
  • I benefitted from using its heatmaps for better user behavior insights
  • Powerful segmentation features help target specific audience groups effectively

Cons

  • Advanced features may require a learning curve for new users
  • Occasionally, the interface can feel overwhelming with numerous options

How to Get VWO for Free?

  • Visit the official VWO website.
  • Create an account and access the lifetime free basic plan.
  • This free plan allows you to experience essential features without any time limits or upfront payment.
  • Upgrade anytime if you wish to unlock additional premium features as your needs grow.

Link: https://vwo.com/


4) Optimizely

Optimizely is a great platform for running experiments. I could test websites, apps, and devices. It helped me enhance my digital channels and improve user experiences.

Optimizely

Features:

  • Unified Platform: It provides a single platform for running experiments and personalizing user experiences, all in one place.
  • Audience Control: I could control how many people can view my experiment, allowing for better management of test audiences.
  • Team Collaboration: This tool lets you experiment across both marketing and product teams, ensuring seamless team collaboration.
  • Response Segmentation: You can segment responses from experiments, which helps in targeting and understanding specific audience behaviors.
  • A/B Testing & Visual Editor: It supports A/B testing and offers an advanced visual editor for designing and managing experiments easily.

Pros

  • Powerful A/B testing features enhance website optimization capabilities
  • Real-time data allows for immediate insights and decision-making
  • Advanced targeting options help personalize user experiences effectively

Cons

  • Limited features in the free plan may restrict comprehensive testing
  • I received some confusion regarding advanced functionalities at first

How to Get Optimizely for Free?

  • Visit the official Optimizely website.
  • Create an account and access the lifetime free basic plan.
  • This plan provides access to fundamental features without any time restrictions or upfront costs.
  • You can choose to upgrade at any time to unlock additional premium features as your needs expand.

Link: https://www.optimizely.com/


5) Omniconvert

Omniconvert is great for A/B testing. I could try different segmentation options to reach my audience. I also liked how the visual editor allowed me to change text and swap images.

Omniconvert

Features:

  • Device Compatibility: I had the capability to run A/B tests on various devices like mobile and laptop, ensuring a seamless testing process.
  • URL Split Testing: Omniconvert allows you to conduct split URL testing, helping you evaluate major changes efficiently.
  • Experience Scheduling: It enables you to schedule your experiment experiences, allowing for timely and strategic testing.
  • Sub-Account Management: You can add sub-accounts with specific rights, making it easier to manage user access and permissions.

Pros

  • Versatile A/B testing capabilities enhance overall conversion rate optimization
  • I benefitted from using its segmentation features for targeted campaigns
  • User-friendly interface simplifies creating and managing experiments
  • Provides detailed insights and reports to drive informed decisions

Cons

  • Limited features available in the free plan may hinder testing

Pricing:

  • Price: Request a free quote from sales

Link: https://www.omniconvert.com/


6) Adobe Target

Adobe Target offered me a top-notch A/B testing tool. I tested different versions of my site and optimized UI and content. It was helpful to test on various platforms, like apps and IoT devices.

Adobe Target

Features:

  • One-Page Website Optimization: It enables you to test, optimize, and personalize customer experiences specifically for one-page websites.
  • Mobile Optimization: I was able to easily optimize mobile experiences, ensuring responsive and user-friendly designs for mobile users.
  • Server-Side Scripting: You can run JavaScript code on the server-side using the node.js environment, enhancing backend functionality.
  • Personalized Targeting: It allows personalization according to gender, age, brand preference, profile data, or brand similarity for tailored experiences.
  • User Data Collection: You can collect valuable user data such as time spent, browser history, age, and loyalty status for deeper insights.
  • Testing Flexibility: Adobe Target provides testing and personalization activities without requiring immediate activation, allowing for better flexibility in implementation.

Pros

  • Powerful personalization features enhance user engagement and conversion rates
  • User-friendly interface simplifies the process of creating tests
  • Real-time data insights provide immediate feedback on test performance
  • Integrates seamlessly with Adobe’s suite of marketing tools
  • Advanced targeting options help reach specific audience segments effectively

Cons

  • It may require significant resources for larger campaigns
  • I remember feeling a bit overwhelmed by the interface at first; it seemed quite complex to navigate.

How to Get Adobe Target for Free?

  • Visit the official Adobe Target website.
  • Create an account and start using the lifetime free basic plan.
  • This plan grants access to essential features without any time limits or upfront payments.
  • You can upgrade to access advanced features at any time based on your growing needs.

Link: https://business.adobe.com/products/target/adobe-target.html


7) Crazy Egg

Crazy Egg provides real-time A/B test results. I evaluated different product details, sales copy, and headlines. It was helpful to identify which page worked the most effectively.

Crazy Egg

Features:

  • Testing Setup: It helps me to set up and launch my tests effortlessly, ensuring a smooth experience from the start.
  • Versatile Testing Options: This tool enables you to test various elements, including product pages, landing pages, and other essential web components.
  • Simplicity in Testing: It provides simplicity in testing the web pages I want, making the process quick and efficient.
  • No Coding Required: You do not need to write any code to test the website, which is great for users without programming skills.

Pros

  • Offers detailed heatmaps to visualize user interaction effectively
  • User-friendly interface makes it easy to set up tests
  • Provides clear insights into user behavior for better decision-making
  • A/B testing feature allows easy comparison of variations

Cons

  • I could access better customer support with paid plans
  • Occasionally, the reporting can be too basic for advanced users

How to Get Crazy Egg for Free?

  • Visit the official Crazy Egg website.
  • Create an account and sign up for the 30-day free trial to explore all the platform’s features.
  • During this period, you will have full access to premium features without any upfront payment.
  • Cancel before the trial ends if you do not wish to be charged for a subscription.

Link: https://www.crazyegg.com/ab-testing


8) SiteSpect

SiteSpect allowed me to test my ideas with its A/B optimization tool. I checked which page version worked best for conversions. It was helpful to see support for React and Angular.

SiteSpect

Features:

  • Performance Dashboard: It provides a dashboard that measures user actions, events, conversion funnels, and various other metrics for better analysis.
  • Interaction Measurement: You can measure the interaction between multiple independent elements of a visitor’s experience for deeper insights.
  • User Experience Modification: It enables me to make changes to user experience using either regular expressions or a visual editor, enhancing customization.
  • Server-Side Functionality: This tool provides server-side functionality with intuitive on or off switches for managing features effortlessly.
  • Automated Campaign Analysis: It automatically analyzes campaigns and promotes winning variations to improve the visitor experience effectively.
  • Cross-Device Recognition: SiteSpect helps you to recognize users across tablet, mobile, and desktop devices, ensuring a seamless experience.

Pros

  • SiteSpect offers real-time analytics for immediate A/B testing insights
  • The tool integrates easily with various web technologies and platforms
  • I could access comprehensive segmentation options for targeted testing
  • SiteSpect allows for server-side testing, enhancing flexibility and performance

Cons

  • I received limited customer support during my initial setup phase
  • SiteSpect can have a steep learning curve for new users

Pricing:

  • Price: Request a free quote from sales

Link: https://www.sitespect.com/testing-and-experimentation/


9) NotifyVisitors

With NotifyVisitors, I can easily create campaigns using its simple A/B testing features. It also offers an extensive undo facility, which has helped me resolve issues quickly. This testing tool works seamlessly across mobile, tablet, and desktop websites.

NotifyVisitors

Features:

  • Website Variation Creation: This tool enables you to create multiple variations of your website to test different designs effectively.
  • User-Friendly Visual Editor: It provides an easy-to-use visual editor for marketers, making design adjustments quick and intuitive.
  • Responsive Design Compatibility: It works seamlessly with responsive websites, ensuring a consistent user experience across devices.
  • Conversion Analysis: You can identify which designs produce maximum conversions, helping to optimize your marketing strategies.
  • Statistical Result Validation: It allows me to validate results through statistical methods, ensuring reliable data for decision-making.
  • Visitor Behavior Analysis: You can visually analyze your website visitor behavior, gaining insights into user engagement and preferences.

Pros

  • NotifyVisitors provides intuitive A/B testing features for easy experimentation
  • The tool integrates seamlessly with various platforms and services
  • It offers customizable templates that enhance user engagement effortlessly
  • NotifyVisitors includes a user-friendly dashboard for real-time insights

Cons

  • Some advanced features are only available in premium plans
  • The initial setup can be a bit time-consuming for new users, but I found it worthwhile in the end

How to Get NotifyVisitors for Free?

  • Visit the official NotifyVisitors website.
  • Create an account and access the lifetime free basic plan.
  • This plan allows you to use essential features with no time restrictions or upfront costs.

Link: https://www.notifyvisitors.com/product/ab-testing


10) Dynamicyield

Dynamicyield allowed me to split traffic between two web pages. I found that it was easy to track which page did well. Testing one-page apps without coding was also a plus.

Dynamicyield

Features:

  • Cross-Platform Testing: It enables you to test any experience across web, email, and mobile applications to maximize reach.
  • Multiple Experience Management: This tool helps you to build, deploy, and test various experiences simultaneously, enhancing versatility.
  • AI-Driven Visitor Matching: DynamicYield automatically identifies and matches the right experience to the right visitor using advanced AI technology.
  • Custom Behavioral Targeting: You can create your own behavioral targeting rules, tailoring experiences to meet specific user needs.
  • Website Element Optimization: It helps me to test and optimize website elements such as design, widgets, headers, and their locations.

Pros

  • Offers robust A/B testing features for in-depth analysis
  • Intuitive interface makes it easy to navigate and use
  • Integrates seamlessly with various marketing platforms and tools
  • As per my experience, it helped me access valuable testing data

Cons

  • Limited customization options for certain A/B test elements
  • Some advanced features require a steep learning curve

Pricing:

  • Price: Request a free quote from sales

Link: https://www.dynamicyield.com/ab-testing/

Other Best A/B Testing Tools

  1. Convert Experiences: Convert Experiences offers robust A/B testing with real-time reporting, user segmentation, and audience targeting capabilities, making it a top choice for optimizing conversion rates.
    Link: https://www.convert.com/features/
  2. Coveo: Coveo is a versatile A/B testing tool that uses machine learning to optimize website search and recommendations, improving user engagement and overall experience.
    Link: https://www.coveo.com/en/solutions/ecommerce-search-platform/ab-testing
  3. Taplytics: Taplytics is a full-featured mobile A/B testing and experimentation platform, offering real-time analytics, push notifications, and user segmentation for continuous app optimization.
    Link: https://taplytics.com/ab-testing-experimentation/

How Did We Choose Best FREE A/B Testing Tools?

Select Best A/B Testing Tool

At Guru99, we focus on providing credible, accurate, and objective information. With over 120 hours of research, I have reviewed 45+ Best FREE A/B Testing Tools, offering both free and paid options. Check out below important factors: usability, features, and reliability. This detailed guide is designed to help you choose the right tool for optimizing website performance and improving user engagement. Each tool offers a solution tailored to boosting conversion rates.

  • Ease of Use: It is important to choose tools that are simple and user-friendly.
  • Key Features: Consider tools that offer essential testing capabilities without hidden fees.
  • Customization: The best way to optimize results is to select tools with robust customization options.
  • Scalability: One of the best approaches is selecting tools that grow with your business needs.
  • Reporting: It might be helpful to choose tools with clear, actionable insights in reports.
  • Support: Pay attention to tools that provide timely support and helpful resources.

Verdict:

In this review, you got acquainted with some of the greatest A/B testing tools. All of them offer unique features for different business needs. To help you make the right decision, I have created this verdict:

  • Zoho PageSense provides a user-friendly, comprehensive platform for testing and optimizing web elements.
  • Unbounce offers powerful, customizable templates for testing landing pages and boosting conversions.
  • VWO allows robust testing with advanced tracking and reporting, ensuring data-driven decisions.
Top Pick
Zoho PageSense

With Zoho PageSense, you can create variations of your webpage/elements and run AB tests. Define metrics you want to track during your A/B tests, such as conversions, CTRs, revenue, engagement, or other KPIs that align with your objectives;

Visit Zoho PageSense