Vizzly – Visual testing with local TDD and dynamic content detection

Summary: Vizzly is a visual testing platform featuring a custom Rust diffing engine that provides fast, precise detection of UI changes. It supports local test-driven development (TDD) without requiring an account and handles dynamic content automatically. The platform integrates with tools like Playwright, Cypress, Vitest, Storybook, and Swift, and offers optional team collaboration features.

What it does

Vizzly uses a Rust-based diffing engine called Honeydiff to deliver 12-16x faster visual comparisons with spatial clustering and perceptual color science. It enables developers to run visual tests locally during development with instant feedback and smart detection of dynamic elements like timestamps and IDs. Team features include position-based comments, @mentions, and review workflows.

Who it's for

It is designed for developers and teams who want to integrate visual testing into their development workflow and catch UI regressions early, supporting various testing frameworks and platforms including iOS.

Why it matters

Vizzly addresses the delay and inefficiency of traditional visual testing by enabling immediate, local detection of UI changes and reducing false positives from dynamic content, improving development flow and visual quality.