Rehearse your launch.

Debutly sends AI agents through your web app as its first customers. In a real browser they sign up, confirm their email, pick a plan, invite their team and use the product. Then they tell you what broke, and where they gave up.

Start your first rehearsal See a sample report

The cast for this run

Maya Okafor runs a six-person design studio. She signs up and buys the Team plan.
Tom Reyes is Maya's designer. He joins from her invite email.
Priya Nair uses a screen reader.
Lucas Berg is on a slow mobile connection.

Made-up customers for a demo app. You describe your buyers, and Debutly casts people like them.

Run log for acme.test

Mayaopens acme.test and starts a free trial
Mayaconfirms her email from the link in her inbox
Mayachooses the Team plan and pays with a test card
Mayainvites tom@studio.test
Priyareaches the plan picker: its buttons have no namesFinding
Tomopens the invite and reads "This link has expired"Finding
Lucaswaits 14 seconds for the pricing pageFinding
Lucasgives up before checkout

Finished in 6 minutes for $0.04, with 3 findings.

How a rehearsal works

Start a test copy of your app

A staging site, or a throwaway copy built fresh in CI with test keys. Never production: the agents create accounts, submit forms and pay.
Describe your customers

Say who buys from you and what they should get done. Debutly casts them: owners with budgets, their teammates, and people who use the web differently.
Let them use it

Each agent gets its own browser and inbox, and works through your app a step at a time, reading the screen as a person would.
Read the notes

Every problem comes with the steps to reproduce it, screenshots, and how many agents ran into it.

Notes from a rehearsal

From a run against a demo app. In the dashboard, each finding opens a replay of the moment it happened.

Blocker seen by 3 of 4 agents

Invite links expire before teammates open them

The owner invites a teammate from Settings.
The teammate opens the email a minute later.
The page says "This link has expired", with no way to ask for a new one.

Major seen by the low-vision agent

The cookie banner covers the Pay button at 200% zoom

Zoom the checkout page to 200%.
Scroll to the card form.
The banner sits over Pay, and its close button is off the screen.

Minor seen by the screen-reader agent

Plan buttons have no names

Open Pricing with a screen reader.
Move through the plans: each is announced only as "button".

What gets rehearsed

Whole businesses, not just users: An owner signs up and pays; teammates accept invites and work in their own logins. Roles, seats and shared workspaces get tested too.
People who use the web differently: Every run includes a screen-reader user, someone with low vision, someone on a slow connection and a non-native English speaker.
What buyers think: Skeptical buyer agents read your landing and pricing pages next to your competitors' and say why they would say no. Compare two versions before you ship one.
Real bugs, not test-environment noise: If your app runs in a sandbox, Debutly reads what it blocked and keeps those failures out of your findings.
A replay of every run: The dashboard shows each agent's run step by step: what it saw, what it did, why, and what happened next.
Costs you can see: Every run is priced before it starts and can be capped. A quick run with a low-cost model costs a few cents.

Free and open source

Debutly is licensed under AGPL-3.0. Run it on your machine or in your own GitHub Actions, with your own model key: your code and keys stay with you.

A hosted version is in the works. Watch the repository to hear when it's ready.

Read the quick start View on GitHub

# in your app's folder
npx debutly init     # a few questions about your app
echo "DEBUTLY_API_KEY=sk-or-…" >> .env
npx debutly doctor   # checks the key, the browser and the app
npx debutly          # the rehearsal

Until the first npm release, type npx github:sroay/debutly in place of npx debutly.