Small tools. Useful answers.
Practical browser tools that help you look closer,
keep a useful record, and take the next step.
Ready when you need them
A focused collection, with a guide for every tool.
Check dead pixels, screen uniformity, gradients, and line patterns. Record observations and save a display support report.
Look closer. Mark the spot. Save your notes. Made to be straightforward
Use the tool in your browser, without creating an account. The guide explains what it does and how to use it.
Clear instructions help you make your own observations. Each guide explains the tool’s limits as well as its features.
Each guide explains how the tool handles your data, including whether anything leaves your device.
About this collection
This collection contains tools with an English interface and an English guide. You can switch languages in each tool without changing what you are checking.
Site information and support pages are currently in Japanese, and those links are labelled clearly.