A Web App to Instantly Display Life-Size Shapes

Welcome to SizeR.jp 🌸

**KUMA- (Hello there!)**
I’m Kumanotomo, friendly bear companion.

Have you ever found yourself wondering, "How big is this in real life?" while shopping online or browsing new product information?
I certainly have.

For instance, when reading about the latest Apple Watch with claims like "It’s thinner and smaller than the previous model!", I find myself curious about the actual difference and end up grabbing a ruler to check.

That’s why I created a tool that lets you quickly and accurately display real-life sizes right on your screen, so you can easily visualize and compare dimensions.

It turned out to be more useful than I expected, so I decided to make it accessible for everyone, anywhere.

And that’s how SizeR was born. (pronounced "Size-R" or "Sizer," whichever you prefer!).

Features of SizeR✨

  • Instant Use: No login or account registration required.
  • Accessible Anywhere: Just remember the domain “sizer.jp,” type it into your browser, and start using it instantly.
  • Easy Calibration: Once you set the display ratio, it stays consistent unless you change your display or scale settings.
  • Life-Size Visualization: Check the size of items intuitively on your screen.
  • Best on Larger Displays: The bigger your screen, the more you can display and the larger items you can visualize.
  • Always Free: No hidden fees or future charges. I may explore ads, donations, or merchandise sales, but the core app will remain free.
  • Made in Japan: Designed and developed by me, Kuma no Tomo, a Japanese creator living in Japan. The “.jp” domain is a mark of its origin and reliability. I strive to deliver a trustworthy app that does exactly what it promises—no more, no less.

Technically, SizeR.jp isn’t just a website.
It’s a web app designed to instantly display life-size rectangular shapes.

If you’re reading this, you’re already set to start using SizeR.

Usage

  1. Click on the "pen and ruler" icon, which is the second from the left in the top-right icons.
  2. The focus adjustment screen will appear. From the image list displayed on the left, select an image for adjustment.
  3. Align the actual item in your hand with the image displayed on the screen, and use the slider at the top to adjust it to the same size.
  4. Once the sizes match, the setup is complete. The settings will be saved, so no further adjustments are needed.
  5. Copy the dimension information from product details on an online shop or similar source.
  6. Click on the "ruler" icon, which is the leftmost icon in the top-right corner.
  7. A text input field will appear at the top. Paste the dimension information you copied earlier into the input field.
  8. As soon as you paste it, the system will read the dimension information from the text and display a ruler-rect that matches the dimensions.
  9. You can drag and drop the ruler-rect, making it easy to arrange or compare items to confirm their real-life sizes.
  10. Of course, if you don’t paste text, you can simply input dimensions directly into the input field to generate a ruler-rect in real-time.
  11. Let’s kumaman!

Chrome Extension (Coming soon)

I’ve also developed a Chrome extension so you can quickly check sizes with a right-click.
Select the part where the dimensions are written, right-click to choose sizer, and sizer will open with the text entered, immediately displaying a ruler-square.


Give SizeR-chan a try! It’ll make her happy.
If it helps you even a little, that would mean the world to me.

Thank you for your support.

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