Nantu by ConversionTeam

Free AB Testing Tool

Nantu, our robust website testing tool - used in over 6,000 tests by hundreds of companies - is now free and open source!

Open Source, Easy to Deploy, Scaleable and Reliable

Free and open source

With no licensing, subscription, or usage fees.

Compatible with tag managers

Nantu is deployed with popular tag managers like Google Tag Manager, Tealium, and Adobe Launch.

No usage fees

No costs for the number of visitors or tests you run. Virtually implement winners indefinitely.

Reliable and scalable

Nantu is built with modern web technologies and has powered over 6,000 tests.

Paid Support and Turn Key Options

Though Nantu is free and open source, we can help speed things up!

We offer paid support to help you get started, run tests faster, or manage your entire testing program.

Monthly support packs

If you need ongoing support for Nantu, we offer monthly packs of 5, 10, or 20 hours of dedicated support from our experienced developers or CRO experts. You can use these hours for troubleshooting, customization, or test concepts and prioritization.

Turn Key Testing Service

If you don't have the time or expertise to create A/B tests yourself, we offer hourly and ongoing programs where our team can create and run tests for you, based on your goals and insights. We use the latest methodologies and tools to ensure that your tests are valid, impactful, and data-driven.

Test Development & QA Services

If you need ongoing support and assistance with your A/B testing efforts, we offer monthly support. You can choose from 5, 10, or 20-hour packs. Support includes priority support, consultation, and troubleshooting, as well as access to our expert team.

Testing as a service

Need CRO expertise along with development? Our team of experts will work with you to develop test ideas, design variations, set up tests, and analyze results.

Features & Integrations

Everything you need to run a serious testing program

Safe Testing & QA Mode

Test with confidence using built-in QA tools that prevent accidental launches and let you preview variations before going live with your experiments.

Learn more..

Precise Targeting

Target your tests with surgical precision across devices, traffic sources, and browsers. Set granular conditions to ensure you're testing with exactly the right audience.

Learn more..

Advanced User Selection

Control exactly who sees your tests with powerful user selection tools. Target new visitors, manage traffic distribution, and run up to 99 different variations simultaneously.

Learn more..

Flexible URL Controls

Deploy tests exactly where you need them with comprehensive URL targeting options. Match specific paths, pages, or elements to run tests precisely where they matter.

Learn more..

Easy Integration

Get started instantly with seamless Google Tag Manager implementation and support for Adobe Launch and Tealium.

Learn more..

Data Privacy

Your data stays under your control. Nantu never stores test data - it simply passes information directly to your analytics platform where it's governed by your existing privacy settings and policies.

Next steps

Let's Talk Conversion

Ready to see if our companies are a good fit? Get a free Quick Wins CRO Audit or reach out to start a conversation.

Free, open-source A/B testing toolTurn-key testing service if you want itTalk to a senior analyst, not a rep