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Lightweight Free A/B Testing Tool

Need a powerful tool without the cost? Run experiments on up to 100,000 users per month (Free Forever) using the only A/B testing tool built for speed. Early access to MidaGX.

Forever free up to 100,000 visitors
Feature guide

A/B testing built for fast-moving marketing teams

Mida helps teams launch controlled website experiments without turning every copy, layout, or offer test into an engineering ticket. Use it to validate ideas, measure revenue or signup impact, and keep winning variants moving into production.

Marketer-led setup

Create page variants with a visual editor, code editor, or AI-assisted workflow so marketers can move from hypothesis to live test without waiting for a full deployment cycle.

Performance-first delivery

Mida uses a lightweight 15KB compressed script so teams can run experiments while protecting page speed and Core Web Vitals.

Business metrics, not vanity clicks

Track signups, purchases, lead submissions, revenue, and custom goals so every experiment connects to a measurable business outcome.

How a Mida A/B test moves from idea to decision

The strongest testing programs make it easy to launch more good ideas while keeping results understandable. Mida keeps that workflow simple.

  1. Write the hypothesisStart with the audience, page, change, and primary metric you want to improve.
  2. Create the variantUse AI, the visual editor, or custom code to build the experience and target the right traffic.
  3. Read the resultReview conversions and revenue impact, then ship the winner or document the learning.

Can marketers run A/B tests without developers?

Yes. Mida is designed for marketer-led website tests. Developers can still use code when needed, but most copy, layout, CTA, and landing page tests can be created without a deployment.

What should we test first?

Start with high-intent pages and clear business metrics: landing page headlines, pricing page clarity, product page trust, checkout friction, and lead form completion.

How does Mida stay lightweight?

The client script is 15KB compressed and focused on experiment delivery instead of bundling heavy analytics, heatmaps, or session recording tools.

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Frequently asked questions

What is Monthly Tested Users (MTU)?

Tested users are individuals who visit your website and are included in any of the A/B tests you're conducting. We have created an easy visualization of MTU here.

How does Mida count Monthly Tested Users (MTU)?

Mida counts an MTU when a unique visitor interacts with at least one active experiment within a billing month. Each user is counted only once per month, regardless of how many experiments they participate in or how many pages they view. Click here to learn more.

Why does the Growth plan include only 5 projects?

For most teams, 5 projects are more than enough. We typically see customers using 1–2 projects (for example, one for a landing site and one for an app). If you need more than 5 projects, you’re likely managing multiple sites or clients. Reach out to us about our Agency plan, which is better built for that use case.

How does Mida affect my site speed?

Mida is designed to have minimal impact on your site speed. Our script is 15KB compressed and typically much smaller and faster than most competitors, keeping your website's performance smooth. You can see a detailed comparison of script and loading times here.

Can I use Mida for native Mobile Development?

It is in closed beta for now. Contact us through email to get into the beta testing for free.

Can it run on my website (Webflow/Wix/Framer/etc)?

Mida works with almost all websites that allow the addition of custom HTML codes.

Can it run on funnel sites?

Yes, it works on all website funnels that allow you to inject custom HTML codes to the HEAD section.

Do you support cross domain testing?

Yes, Mida supports cross-domain testing! You can use the same project snippet across different websites or domains. Add the unique project snippet to each site you want to test or track goals within the same project.

Do I need to pay separately for Live Deployment and Personalization?

No, it's all covered within the Growth plan. Our pricing plan doesn't charge you separately on features, it's purely a usage-based pricing model with all features covered.

Do you offer an agency portal to see all clients and results, or are clients on separate accounts?

Yes. Mida supports flexible agency setups, depending on how you work with your clients and handle billing. Click here to read more.