# Browser tests for the customer flows you need to trust

Zerocheck turns your manual QA checklist into repeatable browser tests. Describe what a customer should do and what should happen; Zerocheck's browser agent drafts the steps, runs them against your web app, and shows you the result. Review and save tests in the web app, then rerun them before a release or use the optional CLI in your development workflow.

## “We are shipping faster than we can test by hand.”

Coding agents write more code than your team can check by hand. Selector-based test suites break on the first refactor, and each flaky failure sends an engineer to triage instead of shipping value to your customers. Someone still needs to check that customers can sign in, find a product, update a setting or complete the part of a purchase your test covers. Repeating that checklist takes time, and investigating unreliable test failures takes attention away from customers.

Start with the flows you already check before shipping. Give each one a specific expected outcome, keep the tests you need, and inspect what happened when they ran. You can add coverage one flow at a time.

## From a manual check to a test you can rerun

1. **Describe the flow.** Add a test in the web app or paste a checklist. Include the expected result and the setup or test data it needs.
2. **Run and review.** The agent drafts readable steps and runs them in a hosted browser. Inspect the steps and the result; answer any missing details.
3. **Save the test.** Keep it in Your tests, edit it when your product's expected behavior changes, and run it against a chosen environment.
4. **Use it in your release workflow.** Run from the web app, download individual tests as YAML, or use repository tests with the CLI and GitHub Actions.

Hosted runs from the web app need no installation in your codebase. The CLI is useful for localhost, private networks your machine can reach, and CI. Both use the same test format and browser agent.

## “Can I see what actually happened?”

Open a run to see the exact test revision, the result of each step, before-and-after screenshots, error details and every attempt. Console warnings and errors help you investigate. A recording is available when the test uses no configured credentials.

A failed expected outcome, a missing credential and an interaction the agent could not complete are different results. Zerocheck shows the distinction so you can decide whether to fix your app, your setup or the test description. A test failure alone does not establish the cause of a bug.

## “How much of this relies on AI?”

AI drafts tests and uses the page's current state to interpret interactions and expected outcomes that need judgment. Supported explicit text, URL and network assertions use direct browser evidence. The test records how each step was resolved, so you can inspect the basis for a result.

Your team defines what success means. For important amounts, labels and destinations, write a specific assertion your reviewer can read and verify.

## “What happens when our UI changes?”

When a control moves, Zerocheck can find it again from the step's description. It records the old target, the new target and the reason. A heal is saved only after the complete unchanged test passes with independent evidence that the intended interaction and outcome were preserved.

Changes to the meaning of a control or the expected product behavior still need a test edit you review. If a transient AI-service error is retried and the test then passes, that result is labelled flaky. Assertion failures are never retried into a pass.

## Where Zerocheck fits

Zerocheck is for teams shipping a web product who have customer flows to verify and an engineer who can define expected outcomes and test accounts. It works especially well as a starting point when the release checklist still lives in a document or in someone's head.

Tests run in Chromium. Authenticated flows need configured login steps and credentials. Local runs still use Zerocheck's AI service and upload results and artifacts. Read the [supported flows](https://tryzerocheck.com/docs/limits/) and [data handling](https://tryzerocheck.com/docs/security/) before choosing your evaluation flows.

## Try it on your own release checklist

Start with a free seven-day assisted evaluation, with no credit card required. We set up your instance on a short call and help you get your first tests running. If you continue, the Pilot is US$500 per month for one project on a dedicated instance; we agree your team's run cadence and usage at the start.

[Try Zerocheck on your app](https://tryzerocheck.com/onboarding/) · [Read the pricing](https://tryzerocheck.com/pricing/) · [Create your first test](https://tryzerocheck.com/docs/web-app/)

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Canonical: https://tryzerocheck.com/product/
Updated: 2026-09-16