Your AI can't see this. Vouch can.
47 errors found on this page. Copy → Paste to Claude → Fixed in 5 minutes.
No account required. Works immediately.
You know something's off. You just can't name it.
Maybe you're shipping fast with AI tools and the output looks generic. Maybe you're a developer who never learned design principles. Maybe you're a designer who wants a second opinion. Either way — Vouch finds the 47 specific things wrong and gives your AI exact fixes.
For anyone who builds websites
AI-Assisted Developers
Shipping with Cursor, Bolt, or Claude? Vouch catches what your AI can't see.
Developers Without Design Training
You make things work. Vouch makes them look right.
Designers Who Want Validation
Trust but verify. Vouch is your objective second opinion.
Run. Copy. Ship.
- 1
Run Vouch
Click the extension. Instant analysis. See every spacing violation, rogue color, and broken shadow highlighted on your page.
- 2
Copy to AI
One click exports all violations in a format Claude/Cursor understands. Specific issues. Specific fixes.
- 3
Ship polished
Your AI fixes the issues. Run Vouch again. 1-2 cycles. Done.
What you get
See what's wrong
Click any error. See expected vs. actual. No guessing.
Paste and fix
Output optimized for Claude, Cursor, ChatGPT. Your AI gets instructions, not vibes.
Tailwind out of the box
Start immediately. Or import your own design tokens.
MCP integration and CI/CD output (SARIF) available for power users.
50+ rules. Zero opinions.
Vouch analyzes your page against 50+ design rules covering spacing, typography, color, shadows, and alignment. All rules are based on proven design principles, not subjective preferences.
| Category | Examples |
|---|---|
| Spacing | Magic numbers, inconsistent margins, broken scales |
| Typography | Wrong sizes, bad line heights, hierarchy violations |
| Color | Rogue hex codes, contrast failures, palette drift |
| Shadows | Light-from-below, inconsistent blur, wrong colors |
| Alignment | Near-misses, uneven gutters, visual imbalance |
Frequently Asked Questions
How is Vouch different from asking AI for design feedback?▼
AI feedback hallucinates. It says 'looks good!' when it doesn't. Vouch is deterministic — same input, same output. When Vouch says contrast is 3.8:1 and needs 4.5:1, that's not an opinion. That's a WCAG violation.
What design rules does Vouch check?▼
Vouch checks 50+ rules across spacing, typography, color, shadows, and alignment. Rules are based on proven design principles. Tailwind preset included; custom design tokens supported.
Does Vouch work with my framework?▼
Yes. Vouch analyzes rendered CSS in the browser, not source code. React, Vue, Svelte, vanilla HTML — whatever you're building with.
Is my code sent anywhere?▼
No. Vouch runs entirely in your browser. Nothing leaves your machine.
I'm a designer. Is Vouch useful for me?▼
Yes. Vouch catches things human eyes miss — spacing that's 1px off, colors that drifted from your tokens, shadows that break light physics. Think of it as a design spellchecker.