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Percy is BrowserStack’s visual testing and review platform. It captures screenshots of web pages or application states during a test run, compares them with approved baselines, and shows visual differences for people to review. It helps teams catch unintended changes to appearance; it does not replace functional tests or decide by itself whether a difference is a defect.
What Percy does—and what it does not do
Percy is used for visual regression testing: comparing a new rendering of a page or component with a previously approved rendering. A difference can reveal a changed layout, style, font, color, or other visual detail that a functional test may not check.
A detected difference is a review signal, not an automatic failure verdict. A person decides whether the change is intended, should be approved, or needs correction. Functional tests remain responsible for checking behavior such as navigation, form submission, and application logic.
How Percy’s visual testing workflow works
- Create a project. Set up a Percy project for an application or component library.
- Trigger a build. A test, command-line workflow, or supported integration sends snapshots and related assets to Percy.
- Render and compare. Percy renders the submitted snapshots and compares them with the selected baseline.
- Review the differences. Reviewers inspect changes and approve intended updates or request changes before merging.
- Connect review to development. With source-control integration, Percy can report status on commits or pull requests. Teams can configure builds to block a merge pending review.
Projects, builds, snapshots, and baselines
How the pieces fit together
A project organizes visual testing for an application or component library. Each build groups snapshots from a run and can include metadata such as commit and pull-request details when a repository is linked. Snapshots are the captured page or application states Percy renders and checks.
#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
Why branch behavior matters
Baselines determine what a new snapshot is compared against. Percy’s documented workflow carries approved snapshots forward into later builds on the branch. The main branch is auto-approved by default, though project settings can change that behavior. Teams should understand their project’s baseline and approval settings before relying on a visual build as a merge gate.
Build history and retention
As stated in Percy’s documentation checked on October 3, 2026, free-plan builds expire after 30 days, while other plans include one year of build history. Retention is a plan detail that may change; confirm the current terms before choosing a plan or relying on old builds for audits.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
Frameworks and integrations
Percy’s documented integration ecosystem includes Selenium, Playwright, Cypress, Puppeteer, Ember, Storybook, React Styleguidist, Gatsby, Jekyll, Appium, Tricentis Tosca, Maestro, and a build-your-own SDK path. BrowserStack also describes integrations across CI/CD, source control, design tools, automation frameworks, and collaboration workflows. Support for a framework does not mean every combination has identical capabilities or setup; check the documentation for the specific framework and workflow you use.
Using Percy with Playwright
Playwright is among Percy’s documented integrations. The general pattern is to run your Playwright tests, capture the intended page states through the Percy integration, and let the resulting build compare them with the project’s baselines. Confirm the current setup steps for your language, package version, and CI environment in Percy’s official documentation.
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Cross-browser coverage and screenshot usage
Percy’s cross-browser documentation lists Chrome, Firefox, Edge, and Safari. Browser selection can be managed through Percy project settings or BrowserStack Automate. With Percy-managed rendering, Percy uses its own infrastructure and fixed operating systems. BrowserStack Automate can specify operating-system and browser details when OS-level rendering differences matter.
Each browser snapshot counts separately toward monthly screenshot usage. A page checked in several browsers therefore consumes more usage than the same page captured in one browser. Browser versions and update cadence can change, so verify the available versions and current plan allowance when planning coverage.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Pricing and plan details to verify
BrowserStack’s Percy product page stated a free-plan allowance of 5,000 screenshots per month when checked on October 3, 2026. That is a current-page claim, not a permanent entitlement. Plan limits, pricing, retention, and feature packaging can change; consult the current pricing page before estimating cost or selecting a plan.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.When Percy is a good fit
- Your team wants screenshot comparisons tied to test runs, source control, and pull-request review.
- You need humans to review visual changes rather than treating every pixel difference as a defect.
- Your automation framework and rendering requirements fit Percy’s documented integrations and browser options.
- You can manage snapshot usage, baseline approvals, and build retention as part of the team’s testing workflow.
For a basic need to fetch a website screenshot as an image or PDF, rather than maintain visual baselines and review diffs, a screenshot API is a different kind of tool. ScreenshotNeo is a website screenshot API and MCP server; it captures pages but is not a Percy-style baseline review system.
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- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Or skip the browser setup
For a one-off website capture, ScreenshotNeo can return a screenshot directly from one GET request. See the ScreenshotNeo API documentation for request options.
curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webpScreenshotNeo accepts cookie and consent banners before capture and removes more than 60 known consent platforms, newsletter popups, and chat widgets; each of those steps can be turned off. Bot checks and CAPTCHAs, blank pages, timeouts, failed loads, and cache hits are not billed, and responses report the page verdict and billing status in headers. Its MCP server provides screenshot and page-information tools for AI agents. The Free plan includes 1,000 screenshots per month with no card; paid plans start at $5 for 3,000 screenshots.
Sign up for ScreenshotNeo’s free plan to get 1,000 screenshots a month with no card.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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