How we make this list: we compare pricing pages, product documentation and public user reviews. Ratings come from G2, Capterra or Trustpilot, with the date we checked them.
Optimizely alternatives at a glance
VWO is the best Optimizely alternative for marketing-led CRO teams that want A/B testing, heatmaps and session replay in one tool. Convert suits teams that want published pricing and strong privacy, and GrowthBook suits data teams that want warehouse-native experiments from $40 per seat per month.
Key takeaways
- Optimizely does not publish pricing, and Vendr data puts average contracts near $80,000 per year with multi-year lock-ins, which is why most teams shop for an alternative.
- VWO and AB Tasty combined in January 2026 and launched as one brand, Wingify, in September 2026, so the two best-known rivals are now one company.
- Convert is the only full-stack option here with a fully published price, from $299 per month billed annually.
- GrowthBook and PostHog both offer free tiers, with GrowthBook Pro at $40 per seat per month and PostHog priced on usage.
- LaunchDarkly is the pick when tests live in product code and feature flags matter more than web page tests.
Optimizely alternatives compared
| Tool | Best for | Starting price | Free plan |
| VWO | Full CRO programs | Free plan; from about $190 per month | Yes |
| AB Tasty | Testing and personalization at scale | Quote only | No |
| Convert Experiences | Privacy-first full-stack testing | From $299 per month billed annually | No |
| Kameleoon | AI-built tests and personalization | Starter from $495 per month | No |
| Adobe Target | Adobe Experience Cloud customers | Quote only | No |
| LaunchDarkly | Feature flags and rollouts | Free Developer plan; paid plans usage-based | Yes |
| GrowthBook | Warehouse-native experiments | Free Starter; Pro $40 per seat per month | Yes |
| PostHog | Product experiments with analytics | Free monthly allowance; usage-based | Yes |
Why do teams look for an Optimizely alternative?
Optimizely is one of the oldest names in conversion rate optimization, and it covers two very different product lines that buyers often confuse: Web and Feature Experimentation for A/B testing, personalization and feature flags, and Content Cloud, the former Episerver CMS and digital experience platform. The alternatives in this guide cover the first line, website and product experimentation. Teams leave because Optimizely does not publish pricing, and Vendr data puts average contracts near $80,000 per year with multi-year lock-ins, according to a 2026 comparison. Setup is slow, the platform is split across products, and teams that use only the experimentation module pay for CMS, commerce and personalization features they never touch. Support also fades after signing, according to user reports on Reddit and G2. Smaller teams want a tool they can start without a sales cycle, and the options below cover every part of the Optimizely bundle at a lower cost.
Check which Optimizely module you are actually replacing, because web experimentation, feature flags and the CMS are different jobs with different tools. Check the testing types, since A/B, split URL, multivariate and server-side tests are not covered equally by every tool. Check the statistics engine, because Bayesian, frequentist and sequential methods give different answers on when a test is done. Check traffic limits, since most tools price on monthly tested users and costs rise with traffic. Check privacy and compliance, because Convert and Kameleoon are built for GDPR and HIPAA, while US-only tools may not be. Check whether you need heatmaps and session replay, since VWO and PostHog include them and Convert does not. Check feature flags, because LaunchDarkly, GrowthBook and PostHog run experiments from flags, while VWO and Convert are web-first.
How much do Optimizely alternatives cost?
Prices here are third-party reported, checked 13 Nov 2026, because no vendor pricing page was opened directly for this guide. Convert publishes its price, from $299 per month billed annually or $399 monthly for 100,000 monthly tested users. Kameleoon Starter starts from $495 per month for up to 10 experiments and 50,000 monthly tracked users. VWO offers a free plan, with paid plans reported from about $190 per month depending on traffic. GrowthBook Pro is $40 per seat per month, with a free Starter tier and an open source edition. PostHog gives a free monthly allowance and then charges on usage. LaunchDarkly offers a free Developer plan, with usage-based Foundation and custom Enterprise tiers. AB Tasty and Adobe Target are both quote-only, with no published price. Confirm current figures on each vendor's pricing page before you buy, since experimentation vendors change tiers often.
Quick comparison
| Tool | Best for | Starting price | Free plan |
|---|
 VWO | Marketing-led CRO teams that want a full testing suite | Free plan; paid plans from about $190 per month, third-party reported, checked 13 Nov 2026 | Yes |
 AB Tasty | Testing and personalization at scale | Quote only, third-party reported, checked 13 Nov 2026 | No |
 Convert Experiences | Mid-market and enterprise teams that want published prices and strong privacy | From $299 per month billed annually or $399 monthly, third-party reported, checked 13 Nov 2026 | No |
 Kameleoon | Privacy-focused teams in healthcare, finance or the EU | Starter from $495 per month, third-party reported, checked 13 Nov 2026 | No |
 Adobe Target | Enterprises already on Adobe Experience Cloud | Quote only, third-party reported, checked 13 Nov 2026 | No |
 LaunchDarkly | Engineering-led release and test programs built on feature flags | Free Developer plan; paid plans usage-based, third-party reported, checked 13 Nov 2026 | Yes; free Developer plan |
 GrowthBook | Data teams that want warehouse-native analysis | Free Starter and open source; Pro $40 per seat per month, third-party reported, checked 13 Nov 2026 | Yes; free Starter tier and open source edition |
 PostHog | Product teams already using PostHog analytics | Free monthly allowance, then usage-based, third-party reported, checked 13 Nov 2026 | Yes; free monthly allowance |
Is your product missing or out of date?
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The 8 best Optimizely alternatives compared
#1VWO
Best for: Marketing-led CRO teams that want a full testing suite4.4/5 on
G2 (929 reviews, checked Oct 2026)
Visit vwo.com
Starting priceFree plan; paid plans from about $190 per month, third-party reported, checked 13 Nov 2026
Free planYes
VWO is the most direct alternative to Optimizely Web Experimentation for marketing-led CRO teams. It covers A/B testing, multivariate testing, split URL testing, heatmaps, session recordings, form analytics and a basic personalization layer, which is the full web testing job in one tool. VWO and AB Tasty announced their combination in January 2026 and launched as one brand, Wingify, in September 2026, so VWO now sits inside a larger company with both products. Pricing is custom and based mainly on monthly active users, with a free plan and a free trial, and third-party reports put paid plans from about $190 per month depending on traffic. The trade-off is that exact pricing needs a quote, so budget planning takes a sales conversation. Pick VWO when a marketing team runs the CRO program without engineering support.
What we like- A/B, multivariate and split URL tests, heatmaps, session recordings, form analytics, personalization layer
Watch out for- Pricing is custom and based on monthly active users, so the published figure is only an estimate
#2AB Tasty
Best for: Testing and personalization at scale4.4/5 on
G2 (422 reviews, checked Oct 2026)
Visit abtasty.com
Starting priceQuote only, third-party reported, checked 13 Nov 2026
Free planNo
AB Tasty covers A/B testing, feature flags and a personalization layer, which is a broader scope than most web-only testing tools. That breadth suits teams that want to test and personalize in the same platform, rather than buying a separate personalization tool. Like VWO, AB Tasty is now part of Wingify after the two companies combined in January 2026 and relaunched as one brand in September 2026, so buyers should check how the two products are sold together. Pricing is custom with no published price, and third-party reports vary widely, with one source listing entry pricing from about $50 per month and others calling it quote-only. Confirm the current price with the vendor before you budget. Pick AB Tasty when you need testing plus personalization at scale.
What we like- A/B testing, feature flags, personalization layer, broader scope than web-only tools
Watch out for- Custom pricing with no published price, and it is now part of Wingify with VWO
#3
Convert Experiences
Best for: Mid-market and enterprise teams that want published prices and strong privacy
Visit convert.com
Starting priceFrom $299 per month billed annually or $399 monthly, third-party reported, checked 13 Nov 2026
Free planNo
Convert Experiences is a privacy-conscious, full-stack experimentation platform built for teams that want powerful testing without opaque pricing or vendor lock-in. It covers A/B, split URL and multivariate tests plus server-side and full-stack experiments, with Bayesian and frequentist statistics and clear guidance on which method fits each test. Pricing is transparent, from $299 per month billed annually or $399 monthly for 100,000 monthly tested users, which makes it the only full-stack option here with a fully published price. The trade-off is that Convert has no built-in heatmaps or session replay, so teams that want to see why a variant won need a separate behavior analytics tool. Pick Convert when published pricing and privacy compliance matter most.
What we like- Published pricing, full-stack experiments, Bayesian and frequentist statistics, strong privacy compliance
Watch out for- No free plan, and no built-in heatmaps or session replay
#4Kameleoon
Best for: Privacy-focused teams in healthcare, finance or the EU4.6/5 on
G2 (137 reviews, checked Oct 2026)
Visit kameleoon.com
Starting priceStarter from $495 per month, third-party reported, checked 13 Nov 2026
Free planNo
Kameleoon competes directly with Optimizely across web experimentation, feature experimentation and AI-driven personalization. Its AI builds web tests for you, which speeds up test creation for teams without a dedicated CRO specialist, and feature experiments are available as an add-on. It is built for privacy-focused teams in healthcare, finance or the EU, with HIPAA and GDPR baked in rather than added on. Starter pricing starts from $495 per month for up to 10 experiments and 50,000 monthly tracked users, with a 30-day free trial and no credit card required. The trade-off is the Starter cap, which small but fast-moving teams can hit quickly, and Enterprise pricing is custom. Pick Kameleoon when privacy rules shape your testing program.
What we like- AI-built web tests, feature experiments as an add-on, Bayesian and frequentist statistics, HIPAA and GDPR support
Watch out for- Starter plan caps at 10 experiments and 50,000 monthly tracked users, and Enterprise pricing is custom
#5Adobe Target
Best for: Enterprises already on Adobe Experience Cloud4.0/5 on
G2 (70 reviews, checked Oct 2026)
Visit business.adobe.com
Starting priceQuote only, third-party reported, checked 13 Nov 2026
Free planNo
Adobe Target runs A/B, multivariate and Auto-Allocate tests, plus machine learning personalization, and it connects deeply with Adobe Analytics and the rest of Adobe Experience Cloud. For a team already on Adobe, Target is the natural pick, because the data flows between analytics, content and testing without extra integration work. Pricing is quote-only, with no published price on Adobe pages, so expect an enterprise sales cycle. The trade-off is ecosystem lock-in: outside Adobe Experience Cloud, Target costs more than rivals and offers little that VWO or Convert cannot do. Pick Adobe Target only when your stack is already Adobe.
What we like- A/B, multivariate and Auto-Allocate tests, machine learning personalization, deep Adobe Analytics integration
Watch out for- Quote-only enterprise pricing, and it makes little sense outside the Adobe ecosystem
#6LaunchDarkly
Best for: Engineering-led release and test programs built on feature flags4.5/5 on
G2 (882 reviews, checked Oct 2026)
Visit launchdarkly.com
Starting priceFree Developer plan; paid plans usage-based, third-party reported, checked 13 Nov 2026
Free planYes; free Developer plan
LaunchDarkly is the pick when your tests live in product code rather than on web pages. It runs feature flags, rollouts and experiments from the same platform, so an engineering team can release a feature to 5 percent of users, measure the result and roll it out or back without a deploy. That flag-first model is its main difference from VWO and Convert, which are web-first. The free Developer plan covers small teams, while Foundation is usage-based and Enterprise is custom, with one comparison putting paid entry near $1,000 per month for 100,000 monthly active users. The trade-off is web testing depth: LaunchDarkly covers A/B testing, but it is not a full CRO suite with heatmaps and visual editing. Pick LaunchDarkly when engineering runs the experiment program.
What we like- Feature flags, rollouts and experiments in one place, Bayesian and frequentist statistics, strong engineering workflow
Watch out for- Limited web A/B testing compared with CRO tools, and paid pricing is usage-based and hard to predict
#7GrowthBook
Best for: Data teams that want warehouse-native analysis4.6/5 on
G2 (26 reviews, checked Oct 2026)
Visit growthbook.io
Starting priceFree Starter and open source; Pro $40 per seat per month, third-party reported, checked 13 Nov 2026
Free planYes; free Starter tier and open source edition
GrowthBook is a flag-based experimentation platform built for data teams that want their experiment results in their own warehouse. It runs experiments from feature flags and analyzes results against warehouse data, so analysts keep control of the numbers instead of trusting a vendor dashboard. The free Starter tier and open source edition cover small teams, and Pro is $40 per seat per month with an AI Visual Editor for web tests. That warehouse-native model is its main difference from Optimizely, which keeps analysis inside its own platform. The trade-off is scope: GrowthBook has no built-in personalization layer, so teams that need it must add another tool. Pick GrowthBook when your data team owns experimentation.
What we like- Flag-based experiments, warehouse-native analysis, AI Visual Editor web tests on Pro, open source
Watch out for- No built-in personalization layer, and the free tier is limited for large teams
#8PostHog
Best for: Product teams already using PostHog analytics4.5/5 on
G2 (1,053 reviews, checked Oct 2026)
Visit posthog.com
Starting priceFree monthly allowance, then usage-based, third-party reported, checked 13 Nov 2026
Free planYes; free monthly allowance
PostHog is an open source product analytics platform that includes feature flags, A/B testing, session recording, heatmaps and a basic customer data platform in one tool. Product teams that already use PostHog analytics get experiments next to their funnels and replays, which makes it easy to see why a variant won. Pricing starts with a free monthly allowance and then charges on usage, so small teams can start without a contract. The trade-off is cost control: usage-based pricing rises with event volume, and teams with heavy traffic can see bills grow quickly. Web testing is also less deep than VWO or Convert, since PostHog is a product platform first. Pick PostHog when your product team already lives in its analytics.
What we like- Product experiments built on feature flags, native analytics, session replay and heatmaps included
Watch out for- Usage-based pricing that rises with event volume, and web testing is not as deep as VWO or Convert
Frequently asked questions
What is the best Optimizely alternative for A/B testing?
VWO is the best pick for marketing-led A/B testing, with A/B, multivariate and split URL tests plus heatmaps, session recordings and form analytics in one tool. Convert is the best pick for teams that want published pricing and full-stack experiments, from $299 per month billed annually. Kameleoon suits privacy-focused teams, while GrowthBook and PostHog suit product and data teams that run experiments from feature flags.
Is there a free Optimizely alternative?
Yes, several options here have free tiers. VWO offers a free plan, GrowthBook offers a free Starter tier plus an open source edition, PostHog gives a free monthly allowance, and LaunchDarkly offers a free Developer plan. None of these free tiers matches Optimizely's full enterprise scope, but they cover the core A/B testing and feature flag jobs for small teams without a contract.
Did VWO and AB Tasty merge?
Yes, VWO and AB Tasty announced their combination in January 2026 and launched as one brand, Wingify, in September 2026. Both products are still sold, and the combined company covers web experimentation, feature experiments, personalization, behavior analytics and mobile app testing. Buyers should ask how the two products are packaged and priced together before signing, since the merger changed the sales structure.
How much does Optimizely cost?
Optimizely does not publish pricing, and every plan is individually packaged through sales. Vendr data puts average contracts near $80,000 per year, with multi-year lock-ins reported by users on Reddit and G2. That enterprise pricing is the main reason teams look for alternatives, since most teams use only the experimentation module and pay for CMS, commerce and personalization features they never touch.
Which Optimizely alternative is best for feature flags?
LaunchDarkly is the best pick for feature flags, with rollouts and experiments built on the same flag platform and a free Developer plan for small teams. GrowthBook is the best pick for data teams that want warehouse-native flag experiments from $40 per seat per month, and PostHog suits product teams that already use its analytics. VWO and Convert cover feature flags only as a secondary feature, so they are not the pick for flag-first programs.
Sources we checked (11)
- https://vwo.com
- https://www.abtasty.com
- https://www.convert.com
- https://www.kameleoon.com
- https://business.adobe.com/products/target.html
- https://launchdarkly.com
- https://www.growthbook.io
- https://posthog.com
- https://www.plerdy.com/blog/optimizely-competitors-alternatives/
- https://www.questera.ai/blogs/optimizely-alternatives
- https://www.convert.com/blog/optimization-tools/optimizely-alternatives-for-ab-testing/
Is your product missing or out of date?
We review this list regularly. Vendors can request a listing, send updated pricing or ask about featured placement.
Shihab Mia · Founder, Rankite
Shihab has 5+ years in B2B and SaaS SEO. He writes Rankite's software buying guides from pricing pages, documentation and public user reviews. More about Shihab.