Schedule Your Personal Demo ×
TestMu 2025 - The Largest Virtual Software Testing Conference is Back | 50,000+ Attendees
Register for free
SmartUI: Best UI Comparison Tool for Visual Testing
Capture and compare screenshots with UI comparison tool. Detect visual errors and deliver pixel perfect website.
Trusted by 2M+ users globally
PDF File Comparison With SmartUI
- Validate PDFs for text, layout, and graphic discrepancies.
- Identify differences in PDF components.
- Generate comprehensive reports for efficient PDF testing.
Visual Perfection With UI Automation Tool
- Use the UI Comparison Tool to maintain uniformity across your product’s UI.
- Easily capture baseline images and compare them for differences.
- Automatically identify visual and functional regressions in your UI.
Accelerate Product Delivery with Faster Visual Bug Detection
- Leverage DOM snapshotting and advanced parallelization to find visual bugs faster.
- Detect UI issues across all browsers and devices.
- Guarantee flawless design and functionality, improving the quality of every product release.
Advanced Options for UI Comparison Tool
- Easily compare changes against baseline data with advanced comparison options.
- Customize your tests using options like largeImageThreshold, errorType, and ignore for precise results.
- Use options like boundingBoxes, ignoredBoxes, and ignoreAreasColoredWith to focus on relevant elements.
Explore Our UI Comparison Tool Offerings
MCP Server connects AI and your code editor to analyze visual changes, perform RCA, and suggest fixes.Learn More
Register For Testμ 2025
19-21
August
80+
Speakers
60+
Sessions
50K+
Attendees
Smart UI SDK supports various Frameworks
Run Your First Visual Regression Test!
Checkout our documentation to run your first Visual Regression test and deliver pixel perfect websites and apps.
Know More
Perform Visual Regression Testing with Efficiency and Speed
Visual Testing on Real Devices
Perform visual testing for mobile apps and browsers on real devices. Capture the full user experience, effortlessly and accurately.
Smart Baseline Branching
Smart Baseline Branching makes it easy to manage and compare visual test baselines across builds and update them.
SmartUI's App Integration
Visual feedback on GitHub, Azure, Jenkins dashboards streamlines reviews, strengthens code checks, and enhances web app quality.
Storybook Visual Testing
Unlock visual regression testing for Storybook projects with SmartUI, ensuring flawless UIs in every deployment.
Figma CLI
Specify Figma components in configuration files and upload them to SmartUI for thorough visual testing and validation.
Reports & Insights
Access detailed test reports, track real-time notifications, gain insights, and integrate analytics for custom reports.
Customer Success Stories
World's leading companies trust LambdaTest with their digital transformation journey. All Customer Stories
0
flaky tests
50%
reduction in test execution time
HyperExecute is a highly reliable test execution platform and has excellent customer support.
Sagar Uday Kumar
Sr. Engineering Manager
Read case study
Packed with Next-Gen AI Features!
24/7 Support
Get access to industry leading 24/7 dedicated support
Local Host
Perform faster local testing with UnderPass app, built for secure tunnels
120+ Integrations
Fits seamlessly into your testing stack with out-of-the box integrations
Native DevTools
Use native DevTools to debug and optimize your apps effortlessly
More Reasons to Love LambdaTest
Documentation
Step-by-step documentation for various test automation frameworks to help you run your first Selenium script.
View Docs
Enterprise Grade Security
Helping you build trust with your customers is important to us.
Wall of Fame
LambdaTest is #1 choice for SMBs and Enterprises across the globe.
Industry Recognition
24/7 support
Got questions? Throw them to our 24/7 in-app customer chat support or email us on support@lambdatest.com.
Trusted by over 2,000,000 teams
1.2B+
Tests
2M+
Users
10K+
Enterprises
132
Countries
Frequently Asked Questions
What is a UI comparison tool?
A UI comparison tool helps you automatically detect visual differences between screenshots of web pages across different browsers and devices. LambdaTest's SmartUI is a leading tool that captures, compares, and highlights UI regression bugs instantly, ensuring cross-browser and device consistency.
Why should I use SmartUI for UI comparison and visual testing?
SmartUI is designed for UI comparison testing, making it faster and more accurate. It detects UI issues like layout shifts, color discrepancies, and broken elements in real time, helping you maintain a consistent and bug-free user interface across browsers and devices.
Why is UI comparison important for web and mobile testing?
UI comparison ensures that your website or app looks and functions consistently across different browsers, devices, and screen sizes. With SmartUI, you can identify visual issues early in the development cycle, preventing poor user experiences caused by design inconsistencies.
Can SmartUI be used for cross-browser UI comparison?
Yes, SmartUI excels in cross-browser UI comparison. It automatically compares your web app’s visual appearance across over 3000 browsers and devices, ensuring your UI remains consistent regardless of where it's accessed.
How does SmartUI help with regression testing in UI comparison?
In UI comparison regression testing, SmartUI automatically compares new builds with previous versions, ensuring that no visual bugs or UI issues have been introduced. It identifies changes in layout, design, and functionality, helping to maintain UI consistency across iterations.
What makes SmartUI the best UI comparison tool?
SmartUI is the best UI comparison tool because it combines AI-native automation with cross-browser support, responsive design testing, and seamless CI/CD integration. It helps you detect and fix visual bugs faster, improving your UI consistency and overall product quality.