The Best Free Google Optimize Alternatives in 2026

Google Optimize shut down on September 30, 2023. If you are still searching for a free Google Optimize alternative in 2026, you are not alone. Thousands of teams that relied on Google's free A/B testing tool were left scrambling, and the landscape has shifted significantly since then.

Google pointed users toward its paid integrations and third-party partners, but that was never a real answer for small teams, solo marketers, or bootstrapped businesses that needed a simple, free way to run A/B tests. Nearly three years later, the market has responded. There are now several viable alternatives, some with genuine free tiers and others with trials worth evaluating.

This guide compares the best Google Optimize alternatives available in 2026. We cover what each tool does well, where it falls short, what it actually costs, and which type of team it fits best. No affiliate links, no fluff. Just a practical breakdown to help you pick the right tool and start testing.

Why Google Optimize Went Away (and Why It Still Matters)

Google Optimize launched in 2017 as a free A/B testing tool tightly integrated with Google Analytics. It was not the most powerful testing platform, but it was free, relatively easy to use, and connected directly to GA data. For many teams, it was their first exposure to structured experimentation.

Google shut it down to push users toward Google Analytics 4 and its partner ecosystem. The official line was that the tool needed a "renewed investment" to serve customers, but the practical outcome was clear: free A/B testing from Google was over.

This matters in 2026 because many teams that were running tests on Optimize simply stopped testing altogether. Studies from the CRO community consistently show that teams who test regularly outperform those who do not. If the end of Google Optimize killed your testing habit, it is time to restart it.

The tools below range from completely free to free-tier-with-limits to premium-with-trial. We have organized them so you can find the right fit based on your budget, technical skill, and testing volume.

1. VWO (Free Tier Available)

VWO has been one of the most recognized names in conversion rate optimization for over a decade. After Google Optimize shut down, VWO stepped in aggressively by launching a free tier specifically designed to capture that displaced audience.

What it does

VWO offers A/B testing, split URL testing, multivariate testing, and a visual editor for making changes without code. The platform also includes heatmaps, session recordings, and surveys in its broader product suite.

Free tier details

VWO's free plan (VWO Starter) allows you to run tests on up to 50,000 monthly tracked visitors. You get the visual editor, basic A/B testing, and access to VWO's reporting dashboard. This is a real free plan, not a 14-day trial.

Pros

• Genuine free tier with enough capacity for small to mid-size sites
• Visual editor is intuitive and does not require developer involvement for simple tests
• Strong statistical engine with support for Bayesian and Frequentist models
• Integrates with GA4, Shopify, WordPress, and most major platforms
• Well-documented with solid onboarding resources

Cons

• Free tier is limited to basic A/B testing; multivariate testing, personalization, and advanced targeting require paid plans
• The 50,000 visitor cap can be restrictive for sites with moderate traffic
• Paid plans jump to a significant price point, starting around $200 to $400 per month depending on features
• Some users report the visual editor can behave unpredictably on complex single-page applications

Pricing

Free for up to 50,000 monthly tracked visitors. Paid plans start at approximately $200/month (billed annually) for the Growth tier, scaling with traffic and features.

Best for

Small businesses, solo marketers, and teams that want the closest equivalent to what Google Optimize offered: a simple, free tool for basic A/B tests.

2. AB Tasty

AB Tasty is a French-born experimentation platform that has grown into a full-featured suite covering A/B testing, personalization, feature flagging, and product experimentation. It targets mid-market and enterprise teams.

What it does

AB Tasty provides server-side and client-side A/B testing, a visual editor, AI-powered traffic allocation, and audience segmentation. Its feature management capabilities also make it relevant for product teams, not just marketing.

Pros

• Comprehensive platform covering testing, personalization, and feature flags in one place
• AI-driven traffic allocation optimizes tests automatically
• Strong visual editor with widget library for common UI patterns (banners, pop-ups, sliders)
• Good support for single-page applications and dynamic content
• ROI tracking built into the reporting layer

Cons

• No free tier. AB Tasty is a premium product with pricing that starts in the mid-hundreds per month
• Pricing is not publicly listed, requiring a sales conversation
• Can be over-engineered for teams that just need simple A/B tests
• Implementation can require developer time, especially for server-side testing
• Contract terms tend to be annual

Pricing

No free plan. Pricing is quote-based and typically starts around $600 to $1,000 per month depending on traffic volume and features. Annual contracts are standard.

Best for

Mid-market companies and growing e-commerce teams that need more than basic A/B testing and want personalization and feature flags in the same platform.

3. Optimizely

Optimizely is the original name in A/B testing. Founded in 2010, it pioneered web experimentation and has since evolved into a broader "digital experience platform" covering content management, commerce, and experimentation.

What it does

Optimizely Web Experimentation offers client-side A/B testing, multivariate testing, multi-page experiments, and advanced audience targeting. Optimizely Feature Experimentation handles server-side testing and feature flags for product teams.

Pros

• Industry-leading statistical engine (Stats Engine) with always-valid results
• Mature, battle-tested platform used by large enterprises
• Excellent developer documentation and SDK support across multiple languages
• Advanced targeting and audience building capabilities
• Strong integration ecosystem

Cons

• No free tier for web experimentation. Optimizely removed its free plan years ago
• Pricing is enterprise-level, often $36,000+ per year for web experimentation
• The platform has become complex; it is overkill for teams running a few simple tests
• Sales-driven pricing model with no transparency on costs
• The full "Digital Experience Platform" branding can be confusing when you just want A/B testing

Pricing

No free plan. Optimizely Feature Experimentation has a free tier for feature flags (limited), but web experimentation is fully paid. Expect annual contracts starting at $36,000 or more per year for small implementations.

Best for

Enterprise teams with dedicated experimentation programs, significant traffic, and budget for a premium tool. Not a practical Google Optimize replacement for small teams.

4. Convert

Convert is a focused A/B testing platform that has built a strong reputation among CRO agencies and consultants. It positions itself as a privacy-first, no-flicker testing tool with a clean interface.

What it does

Convert offers A/B testing, split URL testing, multivariate testing, and a visual editor. It also provides advanced targeting, custom audiences, and integrations with analytics platforms. Convert has gained attention for its GDPR compliance focus and commitment to not using third-party cookies.

Pros

• Privacy-first approach makes it an excellent choice for EU-based teams or anyone concerned about compliance
• No-flicker technology ensures tests load cleanly without visual glitches
• Clean, focused interface that does not try to be everything
• Transparent pricing with no sales calls required
• Strong support from a team that understands CRO deeply
• Integrates with GA4, Hotjar, Heap, and many other tools

Cons

• No free tier; the entry-level plan starts at $99/month
• Smaller brand recognition means fewer community resources and templates compared to VWO or Optimizely
• Visual editor is competent but not as polished as some competitors
• Limited built-in personalization features (focused primarily on testing)
• Reporting, while accurate, is more utilitarian than visually impressive

Pricing

Plans start at $99/month for up to 30,000 monthly visitors. Scales with traffic. A 15-day free trial is available.

Best for

CRO agencies, privacy-conscious teams, and mid-size businesses that want a reliable, focused A/B testing tool without the bloat of an enterprise platform.

5. Kameleoon

Kameleoon is a European experimentation and personalization platform that has been gaining traction globally. It offers both client-side and server-side experimentation with a strong emphasis on AI-driven personalization.

What it does

Kameleoon provides A/B testing, multivariate testing, server-side feature experimentation, and AI-powered personalization. Its machine learning engine predicts visitor intent and can automatically personalize experiences.

Pros

• AI-powered personalization engine that goes beyond basic rule-based targeting
• Full-stack experimentation covering both client-side and server-side
• Strong GDPR and privacy compliance (European company, EU-hosted options)
• Feature flagging integrated into the same platform
• Flicker-free implementation with asynchronous loading options
• Hybrid approach allows both marketer-friendly visual editing and developer-driven experiments

Cons

• No free tier. Pricing is enterprise-oriented
• Can be complex to set up, especially the AI personalization features
• Smaller ecosystem of integrations compared to VWO or Optimizely
• Documentation, while improving, is not as extensive as larger competitors
• The AI features require sufficient traffic volume to be effective

Pricing

No free plan. Pricing is quote-based and generally starts in the range of $400 to $700 per month for smaller implementations. Enterprise pricing scales significantly with traffic and features.

Best for

Teams that want to combine experimentation with AI-driven personalization, particularly those in Europe or with strict privacy requirements.

6. Crazy Egg

Crazy Egg started as a heatmap tool but has expanded to include A/B testing, session recordings, surveys, and error tracking. It remains one of the most accessible analytics and testing tools on the market.

What it does

Crazy Egg offers heatmaps (click, scroll, move), session recordings, A/B testing, traffic analysis, surveys, and error tracking. Its A/B testing feature lets you create variants using a visual editor and measure results directly within the platform.

Pros

• Low starting price makes it accessible for small businesses and freelancers
• Combines analytics (heatmaps, recordings) with testing in one tool
• Very easy to set up; single script tag, no complex implementation
• Visual editor is straightforward for simple changes
• The heatmap and recording data naturally informs what to test
• 30-day free trial available

Cons

• A/B testing capabilities are basic compared to dedicated testing platforms
• Statistical rigor is not as strong as VWO, Optimizely, or Convert
• No multivariate testing
• No server-side testing or feature flags
• Limited audience targeting for experiments
• The tool is better at showing you what is wrong than running sophisticated tests to fix it

Pricing

Plans start at $49/month (Standard plan). The A/B testing feature is included in all plans. A 30-day free trial is available with no credit card required.

Best for

Small businesses, freelancers, and solo marketers who want an all-in-one tool for understanding visitor behavior and running basic tests. Works well as a stepping stone before investing in a dedicated testing platform.

7. CROgrader (Complementary Audit Tool)

CROgrader is not an A/B testing tool. It is a conversion rate optimization audit tool, and that distinction matters. Before you run a single test, you need to know what to test. CROgrader fills that gap.

What it does

CROgrader scans your website and generates a detailed CRO audit covering usability, trust signals, page speed, mobile experience, call-to-action effectiveness, and dozens of other conversion factors. It identifies specific issues hurting your conversion rate and prioritizes them by impact.

Why it belongs in this list

Every tool above helps you run tests. None of them tell you what to test first. This is where most teams get stuck after choosing an A/B testing platform. They install the tool, open the editor, and then stare at their page wondering what to change.

CROgrader solves the "what do I test?" problem. Run a scan before you set up your first experiment, and you will have a prioritized list of issues to address. Some of those issues will be clear fixes (broken trust signals, slow load times, missing CTAs). Others will be hypotheses worth testing with one of the tools above.

Pros

• Free to use with no sign-up required for a basic scan
• Identifies specific, actionable conversion issues, not vague suggestions
• Prioritizes issues by likely impact on conversions
• Works on any website regardless of platform or tech stack
• Helps you build a testing roadmap before investing in a testing tool
• Complements every A/B testing tool on this list

Cons

• Not a testing tool; you still need one of the platforms above to run experiments
• Automated audits cannot catch every nuance a human CRO expert would
• Recommendations are starting points, not guaranteed winners

Pricing

Free scan available at crograder.com. No credit card or account required.

Best for

Any team about to start (or restart) their testing program. Use CROgrader first to identify what needs fixing, then use one of the testing tools above to validate your changes.

Comparison Table: Google Optimize Alternatives at a Glance

How to Choose the Right Google Optimize Alternative

The right tool depends on three things: your budget, your traffic volume, and your team's technical capability. Here is how to think through the decision.

If you need a free tool and have low to moderate traffic

Go with VWO's free tier. It is the most direct replacement for Google Optimize. You get a visual editor, basic A/B testing, and enough capacity for sites under 50,000 monthly visitors. Pair it with CROgrader to identify what to test first, and you have a functional CRO stack at zero cost.

If you are a small business or freelancer on a tight budget

Start with Crazy Egg. At $49/month, you get heatmaps, session recordings, and basic A/B testing in one package. The analytics features help you understand visitor behavior, and the built-in testing lets you act on what you find. It is not the most sophisticated testing tool, but it covers the basics and the price is right.

If you are an agency or consultant managing multiple clients

Choose Convert. Its clean interface, privacy-first approach, transparent pricing, and multi-project support make it well-suited for agency workflows. CRO consultants consistently rate Convert highly for its reliability and statistical accuracy.

If you are a mid-market e-commerce team

Evaluate AB Tasty or Kameleoon. Both offer testing plus personalization, which is where mid-market e-commerce teams get the most value. AB Tasty's widget library is particularly useful for e-commerce use cases (urgency banners, product recommendations, social proof). Kameleoon's AI-driven personalization can be a differentiator if you have enough traffic to feed the model.

If you are an enterprise with a dedicated experimentation team

Optimizely remains the standard. Its statistical engine, SDK support, and feature experimentation capabilities are unmatched at scale. The price reflects this: you are paying for a platform that can support hundreds of concurrent experiments across web, mobile, and server-side.

If you are not sure what to test yet

Start with CROgrader before choosing a testing tool. Run a free scan at crograder.com to get a prioritized list of conversion issues on your site. This gives you a concrete testing roadmap, which makes choosing a tool easier because you will know what capabilities you actually need.

What to Look for in Any A/B Testing Tool

Regardless of which tool you choose, make sure it meets these baseline requirements:

Statistical rigor

The tool should use a valid statistical model (Bayesian or Frequentist) and clearly communicate when a result is significant. Avoid tools that let you "call" a test early based on incomplete data. False positives from premature test conclusions are worse than not testing at all.

Flicker-free implementation

"Flicker" happens when a visitor briefly sees the original page before the test variation loads. It skews results and creates a poor user experience. Any modern testing tool should offer flicker-free or anti-flicker solutions. Ask about this before committing.

Integration with your analytics stack

Your testing tool should send data to whatever analytics platform you already use, whether that is GA4, Mixpanel, Amplitude, or something else. Isolated testing data is hard to act on. Make sure the tool fits into your existing workflow.

GDPR and privacy compliance

If you serve visitors in the EU (or anywhere with privacy regulations, which is increasingly everywhere), your testing tool must support consent management and avoid setting cookies before consent is given. Convert and Kameleoon are particularly strong here. VWO and AB Tasty have also improved their compliance posture significantly.

Ease of use for your team

The best testing tool is the one your team actually uses. A powerful platform that requires a developer for every test is less valuable than a simpler tool your marketing team can operate independently. Be honest about your team's technical skills when choosing.

Common Mistakes When Switching from Google Optimize

If you are migrating from Google Optimize (or starting fresh after a gap), watch out for these common pitfalls:

Testing without a hypothesis. Google Optimize made it easy to just "try things." That was fine for learning, but in 2026, with more sophisticated tools available, you should have a clear hypothesis for every test. "I think changing the button color from blue to green will increase clicks because blue blends with the background" is a hypothesis. "Let's see what happens" is not.

Before you start testing, run a structured audit to identify your biggest conversion gaps. Our free CRO audit guide walks you through the full process.

Running too many tests at once on low traffic. If your site gets under 100,000 monthly visitors, you probably cannot run more than one or two tests simultaneously and still reach statistical significance in a reasonable timeframe. Focus your experiments.

Ignoring mobile. Over 60% of web traffic is mobile in 2026. Every test you run should account for the mobile experience. Some tools let you run device-specific experiments; use that capability.

Not documenting results. Whether a test wins, loses, or is inconclusive, document it. Build a knowledge base of what you have learned. This prevents teams from re-running the same tests and accelerates your optimization program.

Skipping the audit step. This is the most common mistake. Teams install a testing tool and start testing random elements instead of systematically identifying their biggest conversion gaps first. A CRO audit saves you from wasting tests on low-impact changes.

To understand the full scope of potential conversion issues, see our guide on 12 reasons your website conversion rate is low.

The Bottom Line

Google Optimize is gone, but the options available in 2026 are genuinely better. VWO's free tier covers what most small teams need. Crazy Egg gives you analytics and basic testing on a budget. Convert, AB Tasty, Kameleoon, and Optimizely serve progressively larger and more sophisticated teams.

The bigger question is not which tool to choose. It is whether you are testing at all. If the end of Google Optimize stalled your experimentation program, now is the time to restart it. The tools are better, the free options are real, and your competitors are not waiting.

But before you pick a tool and start running tests, make sure you know what to test. A scattered testing program wastes time and budget. A focused one, built on a clear understanding of your site's conversion issues, compounds results over time.

Ready to find out what is actually hurting your conversions? Run a free CRO audit at crograder.com and get a prioritized list of conversion issues on your site. No sign-up required. Use the results to build your testing roadmap, then pick the A/B testing tool that fits your needs and start experimenting with confidence.

Scan your site free at CROgrader.com →

Frequently Asked Questions