No. 14 of 26 ·Visual Regression Testing Software

Vizzy

Web · Linux · Self-hosted

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Freedom report

One barScore 5.4

Free tierNo free tier on record
Open codeNo open-source code on record
Runs widely2 of 6 device platforms
DocumentedPlans, terms and facts published

Vizzy is ranked #14 of 26 in visual regression testing software on Freedom251. It runs on Linux, Self-hosted, Web.

Compared on visual regression testing software

Visual diff modes: pixel
CI/CD integrations: Yes
Approval workflow: Yes

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The record

Purpose: Vizzy is a Ruby on Rails server for visual automation that compares screenshots to help prevent visual regressions.
Screenshot comparison: It compares baseline and test screenshots pixel by pixel and creates a third image that highlights differences in red.
Review workflow: Vizzy posts a GitHub status linking to an overview of diffs, new and missing tests, test history, comments, and image approvals.
Integrations: The repository describes configurable plugins for Slack, Jira, Bamboo, and Jenkins.
Setup requirements: The documented prerequisites are Ruby 2.3.7, Rails 5.1.6.2, ImageMagick 6, and PostgreSQL.
Deployment: The server is Docker-ready, and the repository documents Kubernetes and Heroku deployment options.
Authentication: The README describes local authentication with user registration by default and optional LDAP authentication and account lookup.
Configuration security: The setup instructions use Rails encrypted secrets and say to keep the encryption key out of the repository in the RAILS_MASTER_KEY environment variable.
License: The repository identifies Vizzy as MIT-licensed.
Support and community: The README links to a Vizzy developer Slack community.
Notable limitation: The README warns that squash merging breaks pre-approvals because approvals are associated with pull request commit SHAs.
Intended use: The README says Vizzy relies on a build pipeline that runs tests on pull requests and a client testing framework that captures and saves screenshots.

Where it ranks on Freedom251

Best Visual Regression Testing Software in 2026#14 of 26

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Sources

github.com/Workday/vizzy· checked 4 Oct 2026