Visual regression testing without the E2E overhead
Percy requires you to write and maintain complex DOM snapshots in Playwright or Cypress. RegressionBot crawls your site and uses AI to explain visual changes in plain English, with zero test code.
Percy
Requires SDK integration and maintaining E2E tests.
RegressionBot
RegressionBot just needs a URL. No tests to write or maintain.
Compare RegressionBot vs Alternatives
| Feature | RegressionBot | Percy | Chromatic | Argos |
|---|---|---|---|---|
| Setup Model | URL-based crawler | SDK integration | Storybook plugin | SDK integration |
| Test Code Required | None | Heavy instrumentation | Storybook stories | Test runners |
| Agent-Native / Built-in AI | Yes (Day 1) | MCP on top of test-code | MCP on top of Storybook | No (Test-code only) |
| Starting Price (Paid) | $9/mo | $99/mo | $149/mo | $100/mo |
Stop squinting at red pixels.
When a layout changes, RegressionBot doesn't just throw a broken test and a red box at you. It uses vision models to understand the DOM and explain exactly what changed—and whether it matches your intent.
Changes detected:
- The hero icon was updated from a square to a checkmark (A).
- A new "Admin Dashboard" navigation item was added to the sidebar (B).
- Text phrasing in the configuration paragraph was modified (C, D).
- A new "Project Configuration Locking" section was inserted (E).
- The active state indicator in the Table of Contents was shifted (F).
✓ These changes match the provided PR description: "Add Admin Dashboard to sidebar and document configuration locking."
Storage Configuration
Learn how to configure Pulse to preserve visual snapshot records and perform comparisons across pipeline runs.
Configure Pulse to preserve visual snapshot records securely in Csecure cloud storage and comparing from Dstored baseline images on future pipeline runs.
Lock parameters during a run to prevent visual baseline regression drift across environments.
Frequently asked questions
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