Guide
How to test a vibe-coded app before you share it
You built it by describing it. You can test it the same way: describe what a user would try, and let agents try it. Here is a check you can run before every link you share.
How do I test an app I built with AI?
Publish it to a public address, then have someone new try the main task while you watch for errors. Mimiq does that with AI agents: paste the link and a task like "Sign up and create your first project", and each agent uses the app in a real browser as a different user. You get what broke, which requests failed, and where they got stuck, plus a fix you can paste back into your builder.
Why vibe-coded apps break for other people
The builder tested the happy path while generating it, with your account and your clicks. The first stranger hits the paths nobody tried: a signup with an existing email, a form on a phone, a database rule that blocks new users, an environment variable missing on the published site. You hear about it when someone says "it does not work".
- No test code: a link and a task in plain words.
- Each agent is a different new user, on a real browser.
- Failed requests and JavaScript errors from the browser itself.
- A fix prompt for each problem, ready for your builder.
- Works with Lovable, Bolt, v0, Replit, Base44, Bubble and anything public.
How it works
- 01
Publish it
Use the builder's publish or share link, or a preview deploy. Localhost will not work, because the agents browse from Mimiq's servers.
- 02
Say what a user would try
"Sign up and create your first project", "Book a table for Friday", "Upload a photo and share it". The default is "Sign up and start using it".
- 03
Run 3 to 5 agents
Your first test is free with a free account. 5 agents take about 5 to 15 minutes.
- 04
Paste the fixes back
Each problem in the report comes with a suggested fix written as a prompt. Paste it into your builder, publish again, and rerun the same agents.
The usual suspects
Auth: email confirmation links that point at the wrong domain, signups blocked by a database rule, sessions that drop on refresh. Data: a page that crashes on an empty list for a brand new account. Layout: buttons off screen on a phone. Config: an API key that exists in the editor and not on the published site, which shows up as a failed request.
Agents hit these because they start as brand new users, with empty accounts, on the published site.
Limits
Agents are simulated users. They find problems fast and on every build; they do not forecast how many real people will convert, they are not a deterministic regression suite, and they do not install native mobile apps.
Questions
Do I need to know how to code?
No. You type a link and a task. The report is in plain words, and each fix is a prompt for your builder.
What if my app needs a login?
Agents sign up as new users by default, with their own inboxes. To test pages behind your own test account, add it under Access (paid credits).
Can it test payments?
Agents get no payment details. Tell them to stop at the payment step, or use your payment provider's test mode with a test card you type into the task yourself.
Keep reading
Let the agents find what breaks first.
Your first test is free: sign in with Google and it starts right away. Last checked 2026-10-22.