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Best 78 A/B Testing Tools in 2026

Cline, CohorticalAI, Mutiny, Coframe Living Images, Crit Design, GetWebsite.Report, Contentable.ai, AdGen AI, Rompt.ai, Yep.so are the best paid / free A/B Testing tools.

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What is A/B Testing?

A/B testing, also known as split testing, is a randomized experimentation process where two or more versions of a variable (web page, page element, etc.) are shown to different segments of website visitors at the same time to determine which version leaves the maximum impact and drives business metrics. A/B testing is a method to compare two versions of a single variable, typically by testing a subject's response to variant A against variant B, and determining which of the two variants is more effective.

What is the top 10 AI tools for A/B Testing?

Core Features
Price
How to use

Instantly.ai

Unlimited email accounts and warmups
AI-powered lead enrichment and personalization
Advanced lead filtering and buying signals
Unibox for managing conversations
Campaign pipeline analytics
Deliverability tools

Growth (Outreach) $37 /mo Unlimited Email Accounts, Unlimited Email Warmup, 1000 Uploaded Contacts, 5000 Emails Monthly, Chat Support
Hypergrowth (Outreach) $97 /mo Unlimited Email Accounts, Unlimited Email Warmup, 25 000 Uploaded Contacts, 100 000 Emails Monthly, Premium Live Support
Light Speed (Outreach) $358 /mo Everything in Hyper Growth +, 500 000 Emails Monthly, 100 000 Uploaded Contacts, SISR System
Enterprise (Outreach) Custom Everything in Hyper Growth +, 500 000+ Emails Monthly, 100 000+ Uploaded Contacts, Dedicated Account Manager, Shared Slack Channel, Private Deliverability Network
Growth (SuperSearch) $47 /mo 1500-2000 Instantly Credits Monthly, Database of 450M+ B2B Leads, 13 Filters including keywords and lookalikes, Waterfall Work Email Enrichment with 5+ providers, Instantly Web Researcher Agent, Access to 5 Major LLMs (OpenAI, Anthropic & more), Access to AI Email Writer Agent, Use your own LLM API key, 100+ Community AI Templates, Full profile enrichment (Company description, headcount & more), Job posting, News, Technology & Funding enrichment, Export to major CRMs & Outreach providers
Supersonic (SuperSearch) $97 /mo 5000-7500 Instantly Credits Monthly, Everything in Growth
Hypergrowth (SuperSearch) $197 /mo 10K-200K Instantly Credits Monthly, Everything in Growth
Enterprise (SuperSearch) Custom 200 000+ Instantly Credits Monthly, Dedicated Account Manager and Slack Channel
Growth CRM $47 /mo Unlimited Seats, Master Inbox, Advanced Opportunities, Detailed Lead View, Tasks & Follow-Ups, Leads & Campaigns, Reporting, Integrations
Hyper CRM $97 /mo Everything in Growth CRM +, Instantly AI, Calling & SMS, Salesflows, Website visitors inside CRM, Advanced & Team Reporting, Priority AI (coming soon), Follow-up AI (coming soon), Stripe integration (coming soon)

Instantly.ai allows users to connect unlimited email accounts, find warm leads with advanced filters, enrich and personalize leads with AI prompts, manage conversations across inboxes with Unibox, and track campaign performance with pipeline analytics. Users can also access resources like email outreach templates and a private community for support.

Photofeeler

Photo testing for business, social, and dating profiles
Scoring on key traits by real people
Feedback and suggestions for improvement
Privacy controls over photo visibility

Users upload photos to Photofeeler, then receive scores on traits like competence, likability, and influence (for business photos) or attractiveness, trustworthiness, and smartness (for dating photos) from other users. Users can earn credits to test their own photos by voting on others' photos.

TubeBuddy

SEO tools for keyword research and ranking
Bulk editing tools for streamlining updates
AI features for content creation and optimization
Thumbnail analyzer for predicting performance
A/B testing for thumbnails and titles
Audience understanding tools for discovering niche trends

Pro $6.00 per month For Creators starting their YouTube journey and wanting access to new tools for growth. Access to search optimization features, limited access to video engagement tools, guides, insider tips, info, and more.
Legend $26.39 per month For creators looking for the maximum competitive edge for making data driven decisions and expanding their reach. All features in Pro, PLUS Access to all 50+ tools & features, Unlimited search rank optimization and tracking, Video A/B tests and title generators, Predictive analytics and competitor scorecard, Unlimited access to all of our AI features NEW Audience Understanding tools NEW Related Video Manager
Enterprise Bundle Pricing For brands looking to grow their channels with UNLIMITED TubeBuddy tools. Rank faster on YouTube, save time and money, get expedited customer service, and more. All features in Pro and Legend, PLUS For brands with 3+ channels, White glove onboarding with custom plans, 1:1 training sessions, Dedicated staff support from REAL YouTube Experts, Quarterly strategy sessions with YouTube Pros, Automated YouTube Channel Reviews, Advanced AI analytics and coaching

Install the TubeBuddy browser extension, authorize it to access your YouTube channel, and then utilize the various tools and features within the YouTube Studio interface to optimize videos, manage content, and analyze performance.

Outset

AI-moderated interviews
AI synthesis and highlight reels
Customizable AI interviewer persona
Multimodal research (video, voice, text)
Flexible participant recruitment
Advanced unmoderated testing

Upload a discussion guide, recruit participants from your own panel or Outset's, and let the AI interviewer conduct and synthesize interviews. The platform provides summaries, themes, and highlight reels instantly.

VWO

A/B Testing
Multivariate Testing
Behavior Analytics
Personalization
Web Rollouts
Customer Data Platform
Program Management
AI-Powered Optimization

VWO allows users to set up A/B tests, multivariate tests, and personalization campaigns on their websites and mobile apps. It also provides behavior analytics tools to understand user behavior and identify areas for improvement.

Applitools

Visual AI-powered testing
Autonomous test creation and maintenance
Cross-browser and device testing
AI-augmented recording and NLP authoring
Test orchestration and self-healing tests
Root cause analysis and test insights

Autonomous Free Trial $0 Free for 14 days, Unlimited Users, 20 Concurrent Tests, 25 Autonomous Tests, Unlimited Test Executions
Autonomous Starter $969 /month billed annually Unlimited Users, 10 Concurrent Tests, 50 Autonomous Tests, Unlimited Test Executions
Autonomous Enterprise Custom Unlimited Users, 20+ Concurrent Tests, 100+ Autonomous Tests, Unlimited Test Executions
Eyes Free $0 1 User, 5 Concurrent Tests, 50 Pages (comparable to 50,000 checkpoints), Unlimited Test Executions
Eyes Starter $899 /month billed annually Unlimited Users, 10 Concurrent Tests, 50 Pages (comparable to 50,000 checkpoints), Unlimited Test Executions
Eyes Enterprise Custom Unlimited Users, 20+ Concurrent Tests, 100+ Pages (comparable to 100,000 checkpoints), Unlimited Test Executions
Eyes for Components Free $0 1 User, 500 Components (comparable to 250,000 component checkpoints), Unlimited Test Executions
Eyes for Components Starter $699 /month billed annually Unlimited Users, 500 Components (comparable to 250,000 component checkpoints), Unlimited Test Executions
Eyes for Components Enterprise Custom Unlimited Users, 1,000+ Components (comparable to 500,000 component checkpoints), Unlimited Test Executions

Applitools can be used by signing up for a free trial or choosing a suitable plan. Users can then leverage the platform's SDKs, codeless recorder, and NLP builder to create tests. The platform supports various integrations with development tools, allowing for seamless integration into existing workflows. Tests can be executed on intelligent infrastructure at scale, and the results can be analyzed using powerful insights and root cause analysis tools.

Uneed

Daily product discovery
Product voting system
Product launch platform
Newsletter featuring top products
Product reviews
Advertising options

Skip the waiting line $30 Launch your product on Uneed the day you want. Includes a lifetime backlink.
Mark product as 'For Sale' $10 (additional) Mark your product as 'For Sale' when launching.
Sponsor our newsletter $97 Displayed at the top of our weekly newsletter in front of 9,100 subscribers.
Premium spot $137 Displayed on the home, weekly, monthly and yearly pages. No 'related products' displayed on your product page. Displayed among the first 4 products in its category and tags pages. 20K to 40K impressions.
Product Review $277 (discounted from $297) We'll write a review of your product. Rank on '[your_product] review' on Google. Earn a backlink. Strengthen your customer trust. Free Skip the waiting line included. Private feedback from our team to improve your product.

Users can browse daily product launches, vote for their favorite products, and submit their own products for promotion. Uneed also offers options to skip the waiting line for product launches by paying a fee.

Plerdy

Website Heatmap Tool
Session Replay Software
Pop-Up Software
Ecommerce Analytics
Website Feedback Tool
Event Tracking Tools
Website Funnel Analysis
A/B Testing Tool
SEO Checker

Free $0 / Forever Heatmaps (daily limit) 100*, Video sessions 500*, SEO audit 5,000*, Pop-up 100*, E-commerce tracking 100*, Conversions 100*, AI UX Assistant 2*, A/B testing Unlimited, Months of storage 1
Startup $21 / Month (billed yearly) Heatmaps (daily limit) 500, Video sessions 5,000, SEO audit 10,000, Pop-up 500 + Add-ons*, E-commerce tracking 500, Conversions 500, AI UX Assistant 2 + Add-ons*, A/B testing Unlimited, Months of storage 3
Scale $42 / Month (billed yearly) Heatmaps (daily limit) 1,500, Video sessions 10,000, SEO audit 25,000, Pop-up 1,500 + Add-ons*, E-commerce tracking 1,500, Conversions 1,500, AI UX Assistant 2 + Add-ons*, A/B testing Unlimited, Months of storage 3
Thrive $70 / Month (billed yearly) Heatmaps (daily limit) 3,000, Video sessions 30,000, SEO audit 50,000, Pop-up 3,000 + Add-ons*, E-commerce tracking 3,000, Conversions 3,000, AI UX Assistant 20 + Add-ons*, A/B testing Unlimited, Months of storage 6
Enterprise 1 $97 / Month (billed yearly) Heatmaps (daily limit) 7,000, Video sessions 55,000, SEO audit 120,000, Pop-up 7,000 Add-ons, E-commerce tracking 7,000, Conversions 7,000, AI UX Assistant 40 Add-ons, A/B testing Unlimited, Months of storage 12
Enterprise 2 $161 / Month (billed yearly) Heatmaps (daily limit) 15,000, Video sessions 120,000, SEO audit 300,000, Pop-up 15,000 Add-ons, E-commerce tracking 15,000, Conversions 15,000, AI UX Assistant 60 Add-ons, A/B testing Unlimited, Months of storage 12
Enterprise 3 $253 / Month (billed yearly) Heatmaps (daily limit) 50,000, Video sessions 250,000, SEO audit 500,000, Pop-up 50,000 Add-ons, E-commerce tracking 50,000, Conversions 50,000, AI UX Assistant 80 Add-ons, A/B testing Unlimited, Months of storage 12

Plerdy can be used by installing a script on your website, which takes about 30 seconds. Once installed, you can access various tools to analyze user behavior, identify areas for improvement, and optimize your website for better conversion rates. The platform offers reports and insights based on user behavior, allowing you to build hypotheses and implement changes.

Thumblytics

Thumbnail and title testing
Content idea testing
Click-through rate (CTR) analysis
YouTube thumbnail preview tool
AI Title Generator

Hobby $19 per month Unlimited testing, 3 test credits per month (Collect up to 150 responses), $8.00 per additional credit, Credits rollover and do not expire, Run up to 1 tests at the same time, Full access to AI Title Generator, Full access to YouTube Preview Tool
Starter $49 per month Unlimited testing, 10 test credits per month (Collect up to 500 responses), $7.00 per additional credit, Credits rollover and do not expire, Run up to 2 tests at the same time, Full access to AI Title Generator, Full access to YouTube Preview Tool
Basic $99 per month Unlimited testing, 25 test credits per month (Collect up to 1,250 responses), $6.00 per additional credit, Credits rollover and do not expire, Run up to 5 tests at the same time, Full access to AI Title Generator, Full access to YouTube Preview Tool, Priority Email Support
Pro $349 per month Unlimited testing, 100 test credits per month (Collect up to 5,000 responses), $5.00 per additional credit, Credits rollover and do not expire, Run up to 20 tests at the same time, Full access to AI Title Generator, Full access to YouTube Preview Tool, Priority Email Support

1. Upload thumbnail and title variants to Thumblytics. 2. Preview them in the YouTube template and show them to real people to collect click data. 3. Analyze the data to pick the highest click-through rate (CTR) thumbnail and title.

Bind AI

AI Copilot for code generation
Web search
Technical content writing
Integration with data sources and applications
Github integration with Claude AI models
Built-in code editor (IDE)
Connects to Salesforce, Intercom, and internal databases

Try Now $0 for 3 Days Access to 15+ advanced models

Connect your data sources and applications to Bind AI. Use the built-in editor canvas to generate code, search the web, or write technical content. Integrate with Github for code generation and insights.

Newest A/B Testing AI Websites

Low-code platform for testing and debugging AI applications and LLMs.
AI chatbot platform for lead generation and customer engagement.
Generative AI optimizes website images through A/B testing.

A/B Testing Core Features

Randomized experiments with two variants (A and B)

Comparison of a subject's response to variant A against variant B

Determination of which variant is more effective

Can be applied to web pages, page elements, or other variables

Drives business metrics and helps optimize for maximum impact

What is A/B Testing can do?

Marketing: Testing email subject lines, ad copy, or landing pages to improve campaign performance

UI/UX Design: Comparing different layouts, color schemes, or navigation structures to enhance user experience

E-commerce: Experimenting with product descriptions, images, or pricing to boost sales and revenue

Content Optimization: Testing headlines, article formats, or multimedia elements to increase engagement and shares

A/B Testing Review

User reviews of A/B testing are generally positive, with many praising its ability to provide data-driven insights and improve key performance metrics. Some users appreciate the ease of implementation and the clear, measurable results. However, others note that A/B testing can be time-consuming and requires careful planning and analysis to yield meaningful results. Some also mention that it may not be suitable for low-traffic websites or for testing complex, multi-faceted changes.

Who is suitable to use A/B Testing?

A user visits an e-commerce website and is randomly shown either the original product page (variant A) or a redesigned version (variant B)

The user's interaction with the page, such as time spent, clicks, and purchases, is tracked

The data is analyzed to determine which variant led to higher engagement and sales

How does A/B Testing work?

To implement A/B testing, follow these steps: 1) Identify the variable to be tested and the goal of the experiment. 2) Create two variants of the variable (A and B). 3) Randomly split the target audience into two groups, each exposed to one variant. 4) Monitor the experiment and collect data on the subject's response to each variant. 5) Analyze the results to determine which variant performed better in terms of the goal. 6) Implement the winning variant and continue to iterate and test for further optimization.

Advantages of A/B Testing

Data-driven decision making

Improved user experience

Increased conversion rates

Reduced bounce rates

Better content engagement

Enhanced return on investment (ROI)

FAQ about A/B Testing

What is A/B testing?
Why is A/B testing important?
How long should an A/B test run?
What metrics should be tracked in an A/B test?
How many variants can be tested in an A/B test?
What are some common mistakes in A/B testing?