Free and open first
Best AB Testing in 2026
AB testing software helps you set up tests for websites, apps, APIs and other digital products. This list is for people comparing testing methods, delivery platforms and measurement options before choosing a tool.
- 21 apps
- Research read 28 Sept 2026
- How the order is worked out
- 1
GrowthBook
Free plan Open source AndroidAPIExtension+3Choose GrowthBook for warehouse-based experimentation and feature management with a choice of cloud or self-hosted deployment.
- 2
- 3
ABtesting.ai
Free plan APIWebABtesting.ai is suited to landing-page owners who want automated experiment suggestions and a free first experiment.
- 4
Statsig
Free plan AndroidAPIExtension+3Statsig combines testing, release controls, and product analytics in one platform, with a free Developer plan and Pro at $150 a month.
- 5
FigPii
Free plan WebFigPii combines experimentation with tools for observing and collecting feedback about website visitors. The free plan has a monthly visitor limit, while paid plans begin at $149.99/mo.
- 6
Zoho PageSense
Free plan AndroidAPIExtension+2PageSense brings analytics, behavior analysis, and multiple test types into one platform. Review tracked-user and data-retention allowances when choosing a plan.
- 7
Nelio A/B Testing
Free plan WebNelio A/B Testing brings a wide range of experiments, behavior maps, and conversion reporting into WordPress.
- 8
Omniconvert Nexus Customer Intelligence
Free plan WebNexus brings customer segmentation, value tracking, NPS analysis, and audience syncing together for Shopify brands.
- 9
AB Tasty
Free trial AndroidAPIExtension+4AB Tasty combines experimentation and rollout tools with personalization, feature management, and analytics across web and mobile.
- 10
Convert Experiences
Free trial AndroidAPIiPhone+1Choose Convert Experiences if you need varied web and mobile experiments, advanced targeting, and full-stack SDK options.
- 11
Firebase A/B Testing
Free plan AndroidiPhoneWebFirebase A/B Testing provides focused experimentation tools across web and mobile at no listed cost. Its strengths are experiment variety, targeting, and feature controls within Firebase.
- 12
ABlyft
Free plan Web - 13
Optimizely Feature Management
Free plan AndroidiPhoneWeb - 14
ABsmartly
Paid AndroidAPIExtension+6ABsmartly combines experimentation methods, feature flags, and SDK-based integrations for product and technical teams.
- 15
Kameleoon
Free trial AndroidAPIiPhone+1Choose Kameleoon if your teams need experimentation across web, back-end, and mobile, with feature rollout controls and integrations.
- 16
Convertize
Free trial WebConvertize focuses on visual web experimentation, automated traffic allocation, and conversion reporting.
- 17
Eppo
Paid AndroidAPIiPhone+1Eppo brings experiment analysis, feature controls, and AI evaluation into one platform, with support for mobile and server-side use.
- 18
Evolv AI
Paid AndroidAPIiPhone+1Choose Evolv AI if your organization needs experimentation and personalization with generative AI assistance and real-time variant adjustment.
- 19
VWO Testing
Free trial AndroidAPIiPhone+2VWO Testing brings experiment creation, targeting, and measurement into one platform, with options for web and mobile use.
- 20
SearchPilot
Paid APIWebChoose SearchPilot if your site meets its traffic threshold and you need structured tests of changes that may affect organic search.
- 21
Optimizely Web Experimentation
Paid Web
#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price
When assessing a tool, review whether it has free access or a time-limited trial, the cost of paid use, and any licence permissions for viewing or modifying code. Also examine its client-side and server-side capabilities, tested-user allowances, analytics connections and visual editing features.
Questions
What does AB testing software do?
It provides tools for running tests, with comparisons covering testing methods, client-side and server-side tests, analytics integrations and visual editors.
Are any AB testing tools free to use?
Yes. Tools such as ABlyft, ABtesting.ai, FigPii, Firebase A/B Testing and GrowthBook include a free plan.
Which AB testing tools have free trials?
Convert Experiences offers a 15-day trial, while Convertize offers a 14-day trial.
Are AB testing tools open source?
Some tools in this category provide open-source code. Check the specific tool's licence if you need to inspect or modify its code.
Which platforms do these tools support?
The category covers tools for web, Android, iOS, APIs, self-hosted deployments and browser extensions.
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