Visual height comparison tool for people, animals, objects, and characters
Real product screens and design references for coding agents
Stage
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Founded
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Based in
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Pricing model
Freemium
Free
Pricing
Free plan available with limited features. HowHeight Pro plans: Monthly $4.99, Quarterly $9.99 per 3 months (with permanent unlock of more object placements), Yearly $29.99 per year (with permanent unlock and lifetime compression after 7-day trial ends and annual payment succeeds).
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Key features
Visual height comparison on a shared baseline scale
Support for centimeters and feet plus inches measurements
Compare people, celebrities, animals, objects, and fantasy characters
Save comparison boards with Pro subscription
Export comparisons as PNG images
Create shareable links for comparison boards
1,000+ built-in asset references
Custom names and editable entries
Ad-free workspace with Pro subscription
Unlimited objects on boards with Pro subscription
Browse onboarding flows and user journeys
Measured design guides with fonts, colors, and spacing
Compare UI designs against real products
Generate agent-ready build prompts
MCP server integration with Claude, Cursor, VS Code, ChatGPT
REST API endpoint for programmatic access
Documented interactions and design observations
No account or API key required
What makes it different
Over 1,000 built-in asset references with celebrity presets for instant comparisons
Single shared baseline makes height differences proportional and easy to understand at a glance
Simple three-step workflow with no signup required for basic use
Export and share results as PNG images or shareable links
191 product collections with 7,803+ real UI captures, not templates or mockups
Designed specifically for coding agents to reference during UI development
Free with no limits, accounts, or API keys required
MCP server compatibility for seamless agent integration
Documented design patterns with measured design guides for each product