CheckOps home

Tools directory

V

CheckOps

VizDiff

VizDiff automatically captures screenshots of your Storybook components in GitLab CI and shows visual diffs in merge requests, to stop visual regressions before production.

Visit website

Latest public signals

Not refreshed yet. Refresh reads the public site and, when the entry has a GitHub repository, the latest release.

Visit Website

Introduction

VizDiff replaces tedious manual UI checks with screenshot testing for Storybook. It captures screenshots of your components on every commit via your GitLab CI pipeline and integrates with GitLab merge requests.

You visually compare changes and approve or reject them in a streamlined interface, directly in your workflow. Setup takes minutes: link your GitLab project and upload your first Storybook build. VizDiff launched on Product Hunt in 2025.

GitLab-first support is the main differentiator: many visual testing services centre on GitHub.

Visual tests work best on a stable Storybook: mock dates, random data and animations so screenshots only change when the UI really changes, and review diffs in the same merge request as the code.

Launch and background: VizDiff’s Product Hunt page lists it as launched in 2025.

Features

  1. Storybook screenshots: Every commit.
  2. GitLab CI: Native pipeline integration.
  3. MR integration: Review in merge requests.
  4. Approve or reject: Streamlined review.

Pros

  1. GitLab focus: Fills a gap for GitLab teams.

Cons

  1. Storybook required: Component-level only.
  1. Link your GitLab project.
  2. Add the VizDiff step to .gitlab-ci.yml to upload Storybook builds.
  3. Review diffs in merge requests.

Resources:

Pricing

Prices were not listed on the website when checked on 11 November 2026; contact the vendor for plans.

  1. GitLab teams using Storybook.

Conclusion

VizDiff is a focused visual testing tool for GitLab.

Compare it with Chromatic if you use GitHub.

On CheckOps, VizDiff is filed under the End-to-end & functional and Release & CI gates stages. Related tools listed here include Chromatic, Percy, Applitools, Argos, BackstopJS and Storybook Accessibility Addon. Which one fits best depends mostly on your stack, your team’s size and skills, and whether you prefer to run tools yourself or pay for a managed service. This page reflects the official website, documentation and repository as they stood on 11 November 2026.

Alternatives

Other tools on CheckOps that cover similar ground. Open a page, or compare one with VizDiff side by side.