Google Optimize was the gateway drug of A/B testing. Free, simple, integrated with Google Analytics — it was how most teams ran their first experiment. Then Google killed it in September 2023, leaving millions of websites without a testing tool.
Now it's 2026, and the A/B testing landscape has shifted dramatically. Enterprise tools still charge $50,000+/year, but a new generation of affordable, modern alternatives has emerged. This guide compares the best options — honestly, with real pricing and real tradeoffs.
Why Google Killed Optimize
Google Optimize's shutdown wasn't sudden — it was inevitable. Here's what happened:
No Revenue Model
The free tier served millions of sites but generated zero revenue. Google Optimize 360 couldn't compete with dedicated platforms on features.
Technical Limitations
The 5-variant limit, restrictive targeting, and flicker issues frustrated power users. Google never invested in solving these core problems.
GA4 Transition
The shift from Universal Analytics to GA4 would have required a complete rebuild. Google chose to shut down instead of rebuilding Optimize for GA4's data model.
What to Look for in a Replacement
If you loved Google Optimize, here's what made it great — and what your replacement needs:
Must Have
- Visual editor (no-code experiment creation)
- Free tier or affordable pricing
- Simple setup (one script tag)
- Statistical significance indicators
Nice to Have
- Google Analytics integration
- Zero flicker technology
- Unlimited variants
- Transparent, self-serve pricing
The Best Google Optimize Alternatives in 2026
1. ExperimentHQ
ExperimentHQ was built specifically for teams that loved Google Optimize's simplicity but outgrew its limitations. It's the most direct replacement — same "add one script, start testing" approach, but with a modern visual editor, real-time analytics, and zero-flicker technology.
Pricing
Free tier: 50K MTU, 3 experiments
Pro: $79/mo for 500K MTU
Best For
Startups, SMBs, growth teams
Anyone who just wants to run tests
2. Optimizely
The 800-pound gorilla of experimentation. Optimizely is the most feature-complete platform on the market — feature flags, server-side testing, advanced segmentation, personalization, and multi-armed bandits. But it comes at a price most teams can't afford.
Pricing
$50,000–$200,000+/year
Annual contract, sales call required
Best For
Large enterprises (500+ employees)
Teams with dedicated experimentation engineers
Bottom line: If you have the budget, Optimizely is best-in-class. If you're coming from Google Optimize's free tier, the sticker shock will be real.
3. VWO (Visual Website Optimizer)
VWO is a mature, full-stack CRO platform that bundles A/B testing with heatmaps, session recordings, surveys, and form analytics. It's been around since 2009 and has a solid reputation in the mid-market.
Pricing
$10,000+/year
Limited free plan, sales call for full features
Best For
Mid-market, e-commerce
Teams wanting testing + heatmaps in one tool
Bottom line: Great if you want an all-in-one CRO suite. The script is heavy (~100KB) and setup is more involved than Google Optimize was.
4. AB Tasty
French-based AB Tasty focuses on AI-driven experimentation and personalization. They've invested heavily in widget libraries and no-code tools for marketing teams. Strong in Europe, growing globally.
Pricing
$10,000+/year (estimated)
Custom pricing, sales call required
Best For
Marketing teams, mid-to-large companies
EU-based businesses needing GDPR compliance
Bottom line: Good product, but opaque pricing and a heavier script. Not ideal for teams wanting Google Optimize-level simplicity.
5. Convert.com
Convert is a privacy-focused A/B testing tool popular with agencies. It doesn't store personal data, making it compliant with GDPR, CCPA, and other privacy regulations by design.
Pricing
Starting at ~$499/month
Transparent pricing on website
Best For
Privacy-conscious orgs, agencies
Teams with strict compliance requirements
Bottom line: Excellent privacy credentials, but the $499/month starting price is a big jump from free.
6. Google's GA4 Built-in Features
Google didn't completely abandon testing — they integrated basic experiment analysis into GA4. You can send experiment data from Firebase or third-party tools and analyze results in GA4's reporting. But there's no visual editor or experiment builder.
Bottom line: Not a real replacement. You still need a separate tool to create experiments. GA4 just analyzes the data.
Quick Comparison Table
| Tool | Free Tier | Starting Price | Visual Editor | Script Size |
|---|---|---|---|---|
| ExperimentHQ | Yes | $79/mo | Yes | <5KB |
| Optimizely | No | ~$50K/yr | Yes | ~80KB |
| VWO | Limited | ~$10K/yr | Yes | ~120KB |
| AB Tasty | No | ~$10K/yr | Yes | ~90KB |
| Convert | No | $499/mo | Yes | ~50KB |
How to Migrate from Google Optimize
Migration is straightforward regardless of which tool you choose. Here's the general process:
Remove Google Optimize
Delete the Google Optimize snippet and anti-flicker code from your site. If you used Google Tag Manager, remove the Optimize container tag.
Add your new tool's script
For most tools, it's a single script tag in your <head>. Here's the ExperimentHQ example:
<script async
src="https://cdn.experimenthq.io/snippet.min.js"
data-site="YOUR_SITE_KEY">
</script>Recreate your experiments
Use the visual editor to recreate your variants. Most teams finish in under an hour, even with 10+ experiments.
Set up goal tracking
Configure conversion goals in the new platform. Most tools support click events, page views, and custom JavaScript events.
Don't Wait to Migrate
If you're still running without A/B testing since the Optimize shutdown, you're leaving money on the table. Every week without testing is a week of lost optimization data. The migration takes 30 minutes — there's no reason to delay.
Our Recommendation
If you're a startup, SMB, or growth team that just wants to run A/B tests without enterprise complexity or enterprise pricing, ExperimentHQ is the closest spiritual successor to Google Optimize. It has the same philosophy — simplicity first — but with modern technology that solves the problems Google never bothered to fix.
If you're a large enterprise with dedicated experimentation teams and budget, Optimizely is the gold standard. If you want testing plus heatmaps in one platform and can afford it, VWO is a solid choice.
But for the vast majority of teams — the ones who loved Google Optimize because it was simple, free, and just worked — ExperimentHQ is the answer.
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