Vizzly

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Introduction

Vizzly describes itself as ‘visual testing for coding agents’ that catches UI regressions before they ship. The idea is to give an agent the screenshots a team approved and the comments explaining what changed, so it can check its own work (vendor framing).

Screenshots are captured in tests and compared with approved baselines. A cloud review screen shows only what changed, where people approve or reject changes and leave comments; GitHub pull request checks show whether screenshots changed; and preview hosting lets reviewers click through a build. A CLI and versioned API give agents structured access to build context, comparisons and review state. Local TDD is free on every plan.

Open-source projects with an OSI-approved licence get free cloud review, with up to 10 members, 75 GB of storage and 90 days of history.

In the quality loop it supports visual review before merge, including for agent-written changes.

Features

1. Approved baselines: Shared visual source of truth.
2. Review and comments: Approve changes on screenshots.
3. PR checks: GitHub status checks.
4. Agent API: Structured access for coding agents.
5. Free local loop: Local TDD on every plan.

Pros

1. Agent-oriented: Designed for AI-assisted workflows.

Cons

1. Young product: Smaller track record.
2. SaaS review: Cloud features are hosted.

Usage and Links (Example)

1. Add Vizzly to a repository and install the CLI.
2. Run tests locally to compare against baselines.
3. Push to GitHub and review changes in the cloud.

Resources:

• Vizzly website

Pricing

Free plan ($0) and per-user paid plans about $12 and $21 per month; free cloud review for qualifying open-source projects. See site.

Recommended for?

1. Teams using coding agents that want visual guardrails.
2. Open-source projects wanting free visual review.

Conclusion

Vizzly is an interesting agent-focused take on visual review, free for open-source projects.

On CheckOps, Vizzly is filed under the End-to-end & functional and Prototype & UX testing stages. Related tools listed here include Argos, Percy, Chromatic, Happo, Visual Regression Tracker and Applitools. Before choosing, compare them on licence, supported languages and platforms, hosting model, and how well each fits your existing CI pipeline. Facts on this page were checked against the official website, documentation and repository on 11 November 2026; statements the vendor makes about its own product are marked as vendor claims.