before-and-after

To capture before and after screenshots for UI regression testing, provide two URLs or image paths and the tool generates deterministic screenshots using a headless agent. It supports full-page captures, specific selectors, and mobile or tablet viewport presets.

Yes, you can compare visual changes between two web pages using specific viewport sizes. The capture script supports mobile, tablet, and full-page viewport presets to ensure accurate visual diffs across different device dimensions.

The best way to generate PR-ready markdown tables for visual diffs is to capture before and after screenshots of web pages and use the built-in upload adapters. This creates clipboard-ready links and markdown tables for quick design review collaboration.

Yes, you need a headless browser to automate screenshot capture for design reviews. This tool uses the agent-browser powered capture script to securely fetch and generate deterministic screenshots from file:// or http(s) URLs.

Yes, you can use local image paths instead of URLs for visual comparison. The tool accepts both file:// paths and http(s) URLs as inputs for the before and after states to generate the required visual diff.

Visual regression testing works with both specific page elements and full pages. You can target specific CSS selectors or capture the entire page, allowing flexible documentation of UI changes across two states.