Pixelmatch Studio • 3-Panel Visual Regression Comparison

Free Visual Regression Diff Heatmap

Detect unexpected layout shifts, CSS breakages, and styling regressions between two URLs. Compares pixels and highlights shifts with neon-pink.

Baseline URL (Before / Production)

Comparison URL (After / Staging)

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Visual Regression Studio

Enter two URLs above and click "Run Diff". Tailprint captures both viewports and computes a pixel-by-pixel neon heatmap overlay.

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cURL Integration HTTP/2

// In Cursor or Claude MCP:
"Compare staging vs production to verify
 that my CSS changes didn't break mobile"

// Tool executed: compare_snapshots
// Pixelmatch diff rendered in 1.8 seconds