Best A/B Testing Tools in 2026
Whether you’re testing a site, app or feature, the useful choice depends on how you define experiments and reach the audiences you want to measure. GrowthBook leads the ranking, with LaunchDarkly Experimentation and Statsig following; Omniconvert Explore and Confidence by Spotify are also near the top. Compared on test types and audience targeting, the tools can be assessed alongside feature flags, server-side testing and visual editors. Check mobile SDK availability and supported platforms against your product’s needs. Free-plan availability and paid-from pricing round out the comparison as you consider a fit for your team’s testing setup.
46 a/b testing tools ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
| # | Platform | Score | Why | From | Free plan | Paid from | Test types | |
|---|---|---|---|---|---|---|---|---|
| 1 | GrowthBook | 8.8 | RecognisedAPIDocumented | $40/mo | Yes | — | A/B tests; safe rollouts; multi-arm bandits | View |
| 2 | LaunchDarkly Experimentation | 8.7 | RecognisedAPIDocumented | $108.33/mo | Yes | 8.33 /mo | A/B testing; A/A testing; multi-armed bandits; holdout experiments; warehouse-native experiments | View |
| 3 | Statsig | 8.7 | RecognisedAPIDocumented | $150/mo | Yes | 150 /mo | A/B/n, multivariate, sequential, switchback, non-inferiority, multi-arm bandit, holdout | View |
| 4 | Omniconvert Explore | 8.5 | RecognisedAPIDocumented | Free | Yes | — | A/B/n testing; split-URL testing; stacked testing; server-side testing; native mobile-app testing; Shopify price testing | View |
| 5 | Confidence by Spotify | 8.5 | RecognisedAPIDocumented | $449/mo | Yes | 449 /mo | A/B tests, rollouts | View |
| 6 | Harness Feature Management & Experimentation | 8.1 | RecognisedAPIDocumented | Free | Yes | — | A/B testing; sequential testing; fixed-horizon testing; warehouse-native experimentation | View |
| 7 | Mida | 8.0 | RecognisedAPIDocumented | $299/mo | Yes | 299 /mo | — | View |
| 8 | DevCycle | 8.0 | RecognisedAPIDocumented | $500/mo | Yes | 500 /mo | A/B, multivariate, user experience, conversion funnel, server-side, algorithm, architecture, database query | View |
| 9 | Experimently | 7.1 | RecognisedAPIDocumented | Free | Yes | — | A/B testing, multivariate testing, sequential testing, CUPED, multi-armed bandits, Bayesian testing, split URL testing, LLM/model evaluation | View |
| 10 | Zoho PageSense | 7.1 | RecognisedAPIDocumented | Free | Yes | — | A/B testing; split URL testing; full-stack testing | View |
| 11 | Crazy Egg | 7.1 | RecognisedAPIDocumented | $2.42/mo | Yes | 29 /mo | — | View |
| 12 | Datadog Experiments | 7.0 | RecognisedAPIDocumented | $450/mo | No | 450 /mo | A/B testing, sequential frequentist, fixed-sample frequentist, Bayesian, warehouse-native experimentation | View |
| 13 |  Apex | 6.9 | RecognisedAPIDocumented | Free | Yes | — | A/B testing, multivariate experiments, server-side testing, mobile-app testing | View |
| 14 | Amplitude | 6.8 | RecognisedAPIDocumented | Free | Yes | 0 /mo | — | View |
| 15 | AB Tasty | 6.3 | RecognisedAPIDocumented | — | — | — | A/B, multivariate, split URL, multi-page, cross-domain, device-specific | View |
| 16 |  Monetate | 6.3 | RecognisedAPIDocumented | — | — | — | A/B, A/B/n, multivariate, dynamic, feature experimentation | View |
| 17 |  Webtrends Optimize | 6.2 | RecognisedAPIDocumented | — | No | — | A/B, ABn, full-factorial MVT, fractional-factorial MVT, URL split testing, personalisation/targeting, multi-armed bandits | View |
| 18 |  Segmently | 6.2 | RecognisedAPIDocumented | Free | Yes | 49 /mo | A/B testing, multivariate testing, split URL testing | View |
| 19 | Evolv AI | 6.1 | RecognisedAPIDocumented | — | No | — | A/B testing, A/B/n testing, multivariate testing | View |
| 20 |  Dynamic Yield | 6.1 | RecognisedAPIDocumented | — | — | — | A/B testing; dynamic allocation; affinity allocation | View |
| 21 |  SplitPea | 6.1 | RecognisedAPIDocumented | Free | Yes | 29 /mo | A/B testing | View |
| 22 | ABsmartly | 6.0 | RecognisedAPIDocumented | — | No | — | A/B testing; A/B/n multi-variant testing; Fixed Horizon; Group Sequential Testing | View |
| 23 |  Convert Experiences | 6.0 | RecognisedAPIDocumented | — | No | — | A/B testing, split URL/redirect testing, multivariate testing, multi-page testing, full-stack/server-side testing, price testing, multi-arm bandit testing | View |
| 24 | Conductrics | 6.0 | RecognisedAPIDocumented | — | — | — | A/B testing, multivariate testing, adaptive optimization, personalization | View |
| 25 |  Iteratist | 6.0 | RecognisedAPIDocumented | Free | Yes | 63 /mo | A/B, A/B/n, and multi-variant testing | View |
Is your platform on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which a/b testing tool is ranked first on Inferse?
GrowthBook is ranked #1 of 46 with a score of 8.8. LaunchDarkly Experimentation is second and Statsig third.
How many of these have a free plan?
16 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Crazy Egg has the lowest first paid tier we found: $2.42/mo.
How is this list ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it. Paid placements never change a rank.