Trusted by +200 marketers & founders
How it works
Most testing tools are either too technical or overloaded with features you’ll never use. FlashAB is built for speed, clarity, and action—so marketers, founders, and agencies can test ideas without friction.
Paste one lightweight script into your website or tag manager. No advanced setup, no configuration headaches.
Use the visual editor to change text, buttons, layouts, or redirect traffic—without touching code.
Track performance, compare variants, and see which version actually delivers better outcomes.
- Thomas — Growth Marketer

- Dan, founder at Founderpal,
Features
Make changes directly on your page and preview them instantly.
FlashAB is lightweight and optimized to keep your site fast.
Understand winners, losers, and trends without confusing statistics.
Use simple scripts or advanced integrations depending on your setup.
- Nico, Ex-Founder of Talknotes
No developer needed. Just copy and paste our lightweight script.
Copy, paste, and start testing. Works with WordPress, Webflow, GTM, Bubble, Framer, and more.
Can be used with:
Use JavaScript or framework-based integrations for deeper control and advanced targeting.
Can be used with:
- Erwin, Founder of Tailscan
Pricing
€25 one-time payment
€30 one-time payment
€45 one-time payment
For those serious about improving their conversion rate
€80 one-time payment
- Max, Marketer
A monthly tested user is a unique visitor who is included in at least one active experiment during a billing period. If the same person sees multiple variations, they are still counted only once.
No. FlashAB is built to stay invisible to visitors. The script is extremely lightweight and loads quickly, ensuring your site performance and user experience remain unchanged.
Yes. FlashAB works with modern websites, including single-page applications. For dynamic pages and route changes, the SDK or advanced setup ensures experiments run correctly.
FlashAB focuses on client-side testing by default for speed and simplicity. However, advanced users can implement server-side logic using custom integrations and controlled targeting setups.
You can reach out via email whenever you need assistance. Whether it’s setup questions, experiment logic, or troubleshooting, support is available to help you get results faster.
FlashAB presents experiment outcomes in a clear, decision-oriented way. The goal is not to overwhelm you with raw statistics, but to help you confidently decide whether to roll out, iterate, or stop a test.
FlashAB is designed with privacy in mind. Only essential experiment data is processed, and you remain in control of what is tracked. No unnecessary personal data is collected or stored.

After years in marketing and CRO, it became clear that most testing tools were either overpriced or overly complex. FlashAB was created to remove barriers and make experimentation accessible to everyone.
When common tools disappeared or became too heavy, the goal was simple: build a focused, affordable solution that helps teams test ideas and move forward with confidenc