Optimizely Web Experimentation vs GrowthBook

Optimizely Web Experimentation9.0Visit GrowthBook8.8Visit

Higher score Optimizely Web Experimentation #2 in Conversion Rate Optimisation Tools 9.0/10 Pricing on request ✓ 1 of 4 features Visit Optimizely

vs

GrowthBook #3 in Conversion Rate Optimisation Tools 8.8/10 Free plan Free plan✓ 1 of 4 features Visit GrowthBook

• Optimizely Web Experimentation fits best

  Mid-market and enterprise web experimentation teams

• GrowthBook fits best

  Teams wanting flexible, warehouse-native experimentation

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Side by side

Feature	Optimizely Web Experimentation 9.0/10 Visit ↗	GrowthBook 8.8/10 Visit ↗
At a glance
Editor score	9.0	8.8
Ranking	#2 in Conversion Rate Optimisation Tools	#3 in Conversion Rate Optimisation Tools
Best for	Mid-market and enterprise web experimentation teams	Teams wanting flexible, warehouse-native experimentation
Pricing model	Paid	Free plan + paid
Starting price	Pricing on request	—
Free plan	Not checked yet	✓ (best)
Free trial	—	—
Deployment	Cloud	Cloud, Self-hosted, Mobile
Platforms	Web	Web, iOS, Android
Support	Docs	Live chat, Email, Community, Docs
Built for	Mid-market, Enterprise	Solo, Small business, Mid-market, Enterprise
Features Optimizely Web Experimentation 1/4 · GrowthBook 1/4
Visual editor	✓	✓
Heatmaps	Not checked yet	Not checked yet
Session recordings	Not checked yet	Not checked yet
Personalisation	Not checked yet	Not checked yet
Specs
Experiment types	Not checked yet	Not checked yet
Monthly visitors	Not checked yet	Not checked yet
Our review
Pros	Runs A/B, multivariate and split-URL experiments Visual editor supports creating test variants Audience targeting pairs with results and statistical analysis	Analyzes experiments using a connected or managed data warehouse Combines A/B tests, bandits, feature flags, and safe rollouts Supports web and mobile SDKs plus cloud and self-hosted deployment
Cons	Pricing requires contacting sales Testing is client-side, with no server-side testing Support channel listed is documentation	Pro is priced at $40 per seat per month Advanced governance and access controls sit in higher-tier plans Warehouse setup and experimentation controls may exceed simple CRO needs
Our verdict	Optimizely Web Experimentation is a hosted platform for marketing, product, and growth teams that want to run controlled tests on websites and other digital experiences. Its core toolkit covers A/B, multivariate, and split-URL experiments,… Read the review →	GrowthBook brings experimentation, feature flags, and product analytics together around warehouse-native analysis. It is aimed at engineering, product, data, and growth teams running experimentation programs across web, server, edge, and… Read the review →

Strengths and trade-offs

• Optimizely Web Experimentation — where it wins

  • Runs A/B, multivariate and split-URL experiments
  • Visual editor supports creating test variants
  • Audience targeting pairs with results and statistical analysis

  Where it doesn't

  • Pricing requires contacting sales
  • Testing is client-side, with no server-side testing
  • Support channel listed is documentation

• GrowthBook — where it wins

  • Analyzes experiments using a connected or managed data warehouse
  • Combines A/B tests, bandits, feature flags, and safe rollouts
  • Supports web and mobile SDKs plus cloud and self-hosted deployment

  Where it doesn't

  • Pro is priced at $40 per seat per month
  • Advanced governance and access controls sit in higher-tier plans
  • Warehouse setup and experimentation controls may exceed simple CRO needs

• Optimizely Web Experimentation9.0/10 · Pricing on request

  A hosted web testing platform for teams running targeted experiments and analyzing results.

  Visit OptimizelyFull verdict →
• GrowthBook8.8/10 · Free plan

  Flexible warehouse-native testing for teams that need experiments and controlled rollouts.

  Visit GrowthBookFull verdict →