SnapSharp GitHub App
Automatic visual regression testing on every Pull Request. Get a diff comment before you merge.
How it works
1
Open a Pull Request
Push changes to any branch and open a PR as usual.
2
Deploy preview detected
SnapSharp automatically detects your Vercel, Netlify, or custom preview deployment URL.
3
Visual diff runs
SnapSharp screenshots both production and preview, compares them pixel-by-pixel.
4
Comment posted
A detailed report is posted directly on your PR — diff %, changed pixels, pass/fail verdict.
Sample PR comment
⚠️ Visual Regression Report
| Diff | 3.2% |
| Changed pixels | 29,491 |
| Total pixels | 921,600 |
| Status | 3.2% of pixels changed |
Preview: https://pr-42.myapp.com
Production: https://myapp.com
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