Observed arrival · 2026-09-18
Jougi Online: A Ruler for the Screen You’re Holding
A browser-based, real-size ruler that lets phones and computers measure small objects in millimeters, centimeters, inches, or pixels.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- People measuring small objects without a physical ruler
- Worth noticing
- Calibration supports a 20.0 mm one-yen coin, payment card, and other named Japanese reference sizes.
Field notes
The tool combines four-edge ruler placement with draggable A/B pins, allowing a user to measure horizontally, vertically, or across two axes. Its calibration table names concrete references including a 20.0 mm one-yen coin, an 85.6 × 54 mm payment card, A4 paper, and a Japanese postcard. Computer users also get shortcuts for unit changes, guides, coordinates, and full-screen mode.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue