⚡Stack Radar

Visual Testing · Reviewed 20 Oct 2026

Diffy

Automated visual regression testing platform that catches UI bugs before production.

from $67 · free tier · diffy.website ↗

Paid against free › Visual Testing › Diffy

Overview

01

Summary

The useful answer before the supporting detail.

Diffy is an automated visual regression testing platform that detects visual changes in websites by comparing screenshots between environments S24. It is used by developers, QA, and project managers to catch UI bugs before they reach production S24. The main practical value is reducing manual review time and providing confidence in releases S24.

02

Product identity and positioning

Name, category, positioning, audience, and first-party claims.

  • Identity: Diffy, a visual regression testing platform S24.
  • Core purpose: Automatically detects visual changes in websites by comparing screenshots between environments S24.
  • Intended users: Developers, QA, and project managers S24.
  • Product scope: A web-based platform with CLI, API, and integrations S3 S65.
  • Positioning: A complete visual testing toolkit built for development teams S3.
  • Claimed distinction: Unique features include AI summaries and a AI modelskill S24.
03

Use cases and audiences

Who the product serves and the jobs it is designed to handle.

AudiencePractical use case
DevelopersAutomate visual regression testing in CI/CD pipelines to catch UI bugs before release S3.
QA teamsCompare staging and production screenshots before deployment to ensure reliability S24.
AgenciesManage complex websites and ensure client sites don't break S24 S1.
Project managersReview visual changes with AI summaries to prioritize by impact S24.

Features

04

Features and capabilities

Core functions and evidence-backed product capabilities.

CapabilityWhat it does
Automated screenshot comparisonsCompares screenshots between environments to detect visual changes S24.
CI/CD integrationCLI integrates with GitHub Actions, Jenkins, and CircleCI to automate testing S3.
Local development testingTakes screenshots of local dev sites to test responsive design and accessibility without deploying S3.
AI-generated diff summariesProvides AI summaries of changes to speed up review S24.
Figma design comparisonCompares live screenshots against exported Figma frames to verify design implementation S24.
Collaboration and team managementSupports any number of team members S3.
NotificationsSends results via Email, Slack, and Webhook S3.
05

Integrations and ecosystem

Connected products, exports, APIs, and workflow compatibility.

Integration or interfaceTypeWhat it enables
GitHub ActionsIntegrationCompares every pull request's preview environment with production and posts results as a check S65.
GitLab CIIntegrationPosts comments on merge requests and sets commit statuses S65.
browser renderingIntegrationUpload screenshots from browser rendering tests to Diffy for comparison S65.
FigmaIntegrationExport designs from Figma and compare with screenshots of built pages S65.
CLI and APIAPICreate projects, take screenshots, run comparisons, and read results from scripts S65.
AI modelCodeAI interfaceOpen-source plugin that lets AI modelscreenshot local or deployed environments and report changes S65.
ZapierIntegrationCreates tickets in Jira, Asana, Trello, Basecamp from Diffy S65.
WebhooksWebhookSends results to any URL for custom automation S65.

Pricing

06

Pricing and plans

Published plans, free access, trials, credits, and pricing limitations.

Plan or offerVerified price and billingIncludedLimits
Free$0 monthly S73500 screenshots/month S242 environments; 1 month retention S73
Pro$67/month billed annually ($80 monthly) S732,000 screenshots and up; CI and API access; 6 months history S73Not established

Trust and proof

07

Customers, proof, and reviews

Published proof, customer signals, and review evidence.

Independent reviews

PlatformPageHow it was foundNote
SaaSHubIs Diffy.website good? - SaaSHubGrounded web search> There is also a service which can be integrated into your pipeline: https://diffy.website. - Source: Hacker News / over 4 years ago - How much do you charge to maintain a website every month? ... > For the lazy geeks out there, the service diffy does this easily and for cheap: https://diffy.website/. - Source: Hacker News / almost 5 years ago - What's your process for maintaining/updating client websites? ... > Have you looked at using something like https://diffy.website/? I use that on my si
DEV CommunityCatch Visual Bugs Before They Hit Production: Automated Visual Regression Testing for Astro with Diffy and Cloudflare - DEV CommunityGrounded web searchDiffy is a screenshot-based visual regression testing tool. It takes screenshots of your pages across multiple breakpoints, compares them against a baseline (typically production), and highlights any visual differences — layout shifts, missing elements,
diffy.websiteHosted BackstopJS Alternative: Diffy vs BackstopJSGrounded web searchDiffy answers the same question — did this page change? — as a hosted service with a browser UI instead of a config file. This page is an honest account of what you gain and what you give up moving between them.

Customer proof

No named customers, testimonials, or customer case studies were found.

Independent mentions

  • Diffy — Visual Regression Testing — # Visual Regression Testing for Agencies Managing Complex Websites We handle the complexity that breaks other tools. Trusted by many prominent agencies. ... reach users by comparing production against staging, dev, or any other environment side by
  • DiffyWebsite/diffy-cli — # DiffyCli Command-Line tool for interacting with Diffy. Great for building integrations for your CI/CD tools. Allows taking screenshots, diffs, comparing environments. Travis CI License ... will need to have is to pass commit sha to compare operation:
  • Overview / Diffy documentation — pull request environments we can set up Diffy to check these environments against staging (dev ... ) and post results back to the pull request. This is the most complex but most rewarding type of integration as you will catch bugs as early as possible.
  • Regression testing with production traffic at Mixpanel / by Matthew Hoare / Mixpanel Engineering / Medium — We all know the adage “use the right tool for the right job.” You know, don’t use a screwdriver to pound nails. It takes forever and wrecks the screwdriver. At Mixpanel, we try to use the right tools to move quickly and confidently. For example, in 2019, we used the readily available tool, Diffy, for a one-time migration of our Ingestion APIs from Python to Golang. But in 2021, we needed to revisit our use of Diffy because it was not the optimal tool for testing ongoing changes to our APIs. ...
  • Show HN: Diffy – browser extension for faster GitHub PR review experience / Hacker News — built diffy, a browser extension that improves GitHub PR review experience and even works on large PRs. It gives you a full- ... diff with a searchable file tree, side-by-side ... + themes, inline comments, and review workflow. All of this in <2MB
  • DiffyWebsite/diffy-skills — This repo distributes a single plugin, `diffy`, built on the `diffy` CLI, with two capture modes: ... (the production rendering runtime, run locally) and upload it. Requires Docker. ... Remote — have Diffy capture on its own servers (
  • How Diffy Revolutionizes Regression Testing and Cuts D… / BestHub — DaMai is a product‑data operation platform. Traditional regression required selecting a subset of core functions, which was time‑consuming and incomplete. By introducing Diffy, all online requests were compared against the test environment, achieving full

External links were grounded in one live web search. Search snippets are leads, not independently scraped page content; rejected links remain available in Review evidence.

08

Company, security, and trust

Ownership, policies, security signals, and public trust evidence.

SignalFindingSource
Company and ownershipLet's talk. Our team is here to help you make the most of Diffy. Whether it's onboarding, integration, or support.source
Contact and supportIf your stack isn’t listed, it most likely works through the CLI: get the environment URL, run `diffy project:compare`, and read the result from the check, the comment or the notification. Tell us what you use at supportsource
Legal and privacy1\. Privacy Policy Overviewsource
Security and complianceWe protect your Personal Information using technical and administrative security measures to reduce the risks of loss, misuse, unauthorized access, disclosure and alteration. Some of the safeguards we use are firewalls asource
Uptime and status pageNot published on the collected pages.—
Domain registered2018-03-04—
Domain expires2028-03-04—

Not found on the collected pages: uptime and status page. This only means Scout did not find it on the pages it read; it says nothing about the company itself.

09

Documentation and product updates

Help resources, product guidance, and visible changes over time.

Resource or updateTypeWhat is availableDate or freshness
Blog — Visual Testing Guides & QA Tips / DiffyGuideGuides, tutorials, and tips on visual regression testing, QA automation, and shipping pixel-perfect websites — from the team at Diffy. (source)Not dated

Not found in the collected public sources: public roadmap, changelog or release notes, status page, separate help center or knowledge base.

Technical

10

Technical and delivery signals

Delivery model, platforms, API, data ownership, reliability claims and release activity.

SignalFindingSource
Delivery model (cloud, self-hosted, desktop, browser extension)Cloud-based web platform S24.S24
Platforms and appsWeb application S24.S24
API and extensibility (API, SDK, webhooks, MCP, plugins)Provides CLI and API for automation S65; webhooks for notifications S65.S65
Data ownership and exportProject settings can be exported as YAML files S3.S3
Performance and reliability claimsNot published on the collected pages.—
Release activityNot published on the collected pages.—
11

Measured infrastructure

Domain, certificate, and hosting signals, measured directly.

SignalFinding
Domain registered2018-03-04 — GoDaddy.com, LLC
Domain expires2028-03-04
First archived2018-09-03 — web archive
TLS certificateGoogle Trust Services, valid, expires 2026-11-26
Security headersnone served
Headers not servedHSTS, CSP, X-Content-Type-Options, X-Frame-Options, Referrer-Policy
Server headercloudflare
Mail handled byaspmx.l.google.com, alt1.aspmx.l.google.com
Nameserversashley.ns.cloudflare.com, ivan.ns.cloudflare.com

Limits and method

12

Limitations and open questions

Known constraints and missing evidence from the collected pages.

The collected pages do not list explicit limitations of Diffy. The Applitools alternatives page compares Diffy with competitors but does not state Diffy's weaknesses S73. Open questions include how screenshot allowances are counted across browsers and viewports, and what happens when usage exceeds the plan limit S73.

13

Sources, method, and limitations

Evidence inventory, collection method, provider use, and constraints.

This report is based on 15 collected pages from diffy.website, including the homepage, features, integrations, pricing, about, privacy policy, and an Applitools alternatives page. Evidence was gathered via static and browser rendering rendering. External proof search was enabled but no external reviews were scraped. Limitations: some claims are from marketing pages and may not reflect current product state.

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