Lightweight A/B testing. With AI, no developer needed.

Add one small script to your site. In the Studio, ask the AI for a better version of your page, or write it yourself. Tessera tests it against the original and only tells you who wins once the evidence is there.

Start freeStart free · Starter €29/month

How it works

01
Add the script to your site
One line of code in the <head> of your site. Tessera notices on its own when the script counts your first visitor.
02
Make a variant
Tell the chat what could be better, or write it yourself in the Code tab. You see it right away on your real page.
03
Let your visitors decide
Publish and Tessera splits the traffic. The report shows visitors and conversions per version, and only names a winner once the evidence is there.

No-code when you can. Low-code when you want.

No-code · Studio chat

Ask the AI

Describe what you want in plain words: a clearer button, a shorter headline, a block with your benefits. The AI builds it in the style of your site.

Low-code · Code tab

Or write it yourself

Rather take the wheel? Edit the HTML, CSS and JavaScript of your variant, with your page right beside it.

Light on your site.

Small script
One script that only does what is needed: show the right version and measure it.
No flicker
Your visitor sees their version right away, not the original first and then the variant.
Works with your cookie banner
Without consent, Tessera still shows the variants but only counts anonymously, without a visitor ID. The winner comes from visitors who gave consent.

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