Online Ruler
Measure Anything on Your Screen in Seconds
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Read the full description
Free online ruler tool to measure anything on your screen with pixel-perfect accuracy. Calibrate with auto-detect, screen diagonal, or credit card. Supports cm, mm, inches, and pixels.
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PH · launched Oct 23, 2026 · 1 upvote (top 67%)
- Horizontal
- Workflow automation
- B2C
- Not AI
- Commercial product
- Design Tools
- Productivity
- Tech
Similar launches
See all 241 similar launches →Could you build this?
Yes A browser-based measuring overlay with calibration by screen diagonal or credit card is front-end work using standard screen and pixel-density APIs.
Competitors
Other products that read as similar to this one : 241 launches clear the similarity bar, closest 8 shown.
Attention rank: #65 of 242 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 353 days after the earliest competitor.
- Simple Ruler · ph · 2026-10-20 · 1 upvotes · similarity 0.70
- PdfRuler · ph · 2026-10-23 · 2 upvotes · similarity 0.53
- DPI Analyzer · ph · 2026-10-19 · 1 upvotes · similarity 0.51
- Aspect Ratio Calculator · ph · 2026-10-11 · 1 upvotes · similarity 0.50
- 300 DPI Pixel Calculator · ph · 2026-10-20 · 1 upvotes · similarity 0.48
- Screentest · ph · 2026-10-03 · 1 upvotes · similarity 0.48
- Display Inspect · ph · 2026-09-24 · 2 upvotes · similarity 0.48
- SizeCompared · ph · 2026-10-12 · 1 upvotes · similarity 0.47