Visual height comparison tool for people, animals, objects, and characters
Guided photo maker for badges, student IDs and cards with head-position guides and background checks
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
Guided crop with head-position guides
Background neutrality check
Custom ratio from 1:1 to 9:9 printed at 20–51 mm wide
4×6 print sheet at 300 dpi with cutting guides
All processing in-browser with no upload
Head size checking with 70–80% range for ID cards, 55–75% for badges, 45–65% for professional headshots
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
Distinguishes between official standards and conventions, marking which formats are real standards versus employer or school conventions
Private by design—photos processed entirely in browser, never uploaded to servers
Honest about technical limits—measures what software can measure, not expression, shadows or issuer house rules
HowHeight
ID Photo App