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Diffy alternatives

Diffy is a website-focused visual regression service. It captures pages, including logged-in and admin screens without code, compares screenshots pixel by pixel, detects vertical shifts, and groups visual changes by type and impact with AI summaries. Teams can mock dynamic content to reduce false positives, approve individual results, share diff links, and connect CI, design, messaging, and local-development tools. The permanent free plan includes 500 screenshots per month across two environments; the Pro plan costs $67 a month billed annually and adds multiple environments, CI automation, and six-month retention. CI and API access, custom environments, and history beyond one month require payment.

1. 1

   Loki

   Free plan AndroidiPhoneLinux+4

   Storybook visual regression in CI — Loki targets Storybook stories and adds Android, iOS, local Chrome, Docker Chrome, and AWS Lambda rendering.

   7.3 Free plan Visit site
2. 2 R

   Roborazzi

   Free plan AndroidiPhoneLinux+2

   JVM Android and Compose screenshot tests — Roborazzi runs screenshot verification as JVM tests, covering Android views, Compose, desktop, and experimental iOS previews.

   7.2 Free plan Visit site
3. 3

   Happo

   Free plan AndroidAPIiPhone+2

   Visual and accessibility regression testing — Happo includes accessibility testing on every plan and supports Storybook, Playwright, Cypress, repositories, and CI providers.

   7.4 Free plan · paid from $149/mo Visit site
4. 4

   Percy

   Free plan AndroidiPhoneWeb

   Automated responsive web visual reviews — Percy captures DOM snapshots and assets, renders configurable responsive widths, stabilizes dynamic elements, and groups parallel snapshots into builds.

   7.1 Free plan Visit site
5. 5

   SmartUI

   Free plan AndroidAPIiPhone+1

   Broad browser, device, app, and PDF coverage — SmartUI covers browsers, devices, apps, and PDFs, with Visual AI, dynamic-region masking, root-cause analysis, and extensive framework support.

   7.1 Free plan · paid from $199/mo (annual) Visit site
6. 6 F

   Frontend Regression Validator

   Free plan APILinuxMac+2

   Self-hosted website crawling and analysis — FRED crawls two URLs, compares screenshots plus console and network logs, and can apply image segmentation through a web UI or API.

   7.5 Open source Visit site
7. 7 G

   Galen Framework

   Free plan LinuxMacWindows

   Specification-driven responsive layout checks — Galen tests user-defined responsive layout specifications through Selenium, with image comparison, color checks, and HTML reports.

   7.3 Free plan Visit site
8. 8 B

   BackstopJS

   Free plan LinuxMacSelf-hosted
   7.5 Free plan Visit site
9. 9

   Argos

   Free plan APIWeb
   7.4 Free plan · paid from $100/mo Visit site
10. 10 A

    AyeSpy

    Free plan Self-hosted
    7.2 Open source Visit site
11. 11

    Lastest

    Free plan APISelf-hostedWeb
    7.2 Free plan · paid from €29/mo Visit site
12. 12

    Chromatic

    Free plan Web
    7.1 Free plan · paid from $179/mo Visit site
13. 13

    Screenshotbot

    Free plan AndroidAPIiPhone+5
    7.1 From $0.01 · 30-day trial Visit site
14. 14 S

    Screenster

    Free plan APISelf-hostedWeb+1
    7.1 Free plan · paid from $25/mo Visit site
15. 15 J

    jest-image-snapshot

    Free plan Self-hosted
    6.9 Open source Visit site
16. 16 N

    Needle

    Free plan Linux
    6.8 Open source Visit site
17. 17 S

    SnapDiff

    Free plan APIWeb
    6.7 Free plan · paid from $19/mo Visit site
18. 18 V

    Visual Regression Tracker

    Free plan AndroidAPIiPhone+5
    6.7 Open source Visit site
19. 19 T

    TestivAI OSS

    Free plan Self-hosted
    6.5 Free plan Visit site
20. 20 V

    Vizzy

    Free plan LinuxSelf-hostedWeb
    6.5 Open source Visit site
21. 21 W

    Watchlight

    Free plan Windows
    6.5 Free plan Visit site
22. 22

    reg-suit

    Free plan
    6.3 Free plan Visit site
23. 23 I

    iOSSnapshotTestCase

    Free plan iPhone
    5.9 Free plan Visit site
24. 24 A

    Applitools Eyes

    Paid Web
    4.7 From $667/mo (annual) · 14-day trial Visit site

An alternative can be a closer fit for Storybook, JVM Android testing, accessibility checks, mobile applications, PDFs, responsive specifications, or self-hosted execution. Compare each tool’s supported targets, framework integrations, review process, dynamic-content handling, deployment model, and browser or device coverage. Free terms and paid commitments also matter, especially if your workflow needs more than Diffy’s two-browser capture, website scope, or paid-plan requirements.

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