Thorough explanation of how to install and use ERESA extensions!
ERESA has an extension for Google Chrome.
The system is mainly used on PCs, but it displays a variety of data on Amazon, making research and analysis much more efficient.
![](https://eresa.jp/wp-content/uploads/2022/04/eresaamazonscream.png)
This article explains how to install and use the software.
How to Install ERESA Extensions
You must be a registered member of ERESA and logged in before using the extension. If you have not yet done so, please go to the following page.
*Other browsers (BRAVE, etc.) can also be used.
ERESA for Chrome (Extensions)
Functions on the search results screen
■Function #1: Display of Keepa mini-graph & one-click button on the search results screen
![](https://eresa.jp/wp-content/uploads/2022/04/eresachrome.jpg)
- Mini-graphs of the paid version of Keepa (originally paid graphs are available for free)
- ASIN code (can be copied with one click)
- Number of FBA sellers (click to view list of sellers)
- Buttons to access ERESA web version, etc.
Function #2: Display of product details on mouse-over of product image
![](https://eresa.jp/wp-content/uploads/2022/04/eresachrome2.jpg)
Mouse over the product image (hover the mouse pointer over the object) and detailed product information will appear in a pop-up window.
This function can be turned off from the settings.
About the function of the product detail screen
Function #1: One-click icon on the product title to go to ERESA.
![](https://eresa.jp/wp-content/uploads/2022/04/eresachrome3.jpg)
■Function #2: Display of detailed ERESA information (price, ranking history charts, etc.) on Amazon.co.jp product pages
![](https://eresa.jp/wp-content/uploads/2022/04/eresachrome4.png)
You can view the ERESA Web Edition information in real time on amazon.co.jp without accessing the ERESA Web Edition.
*Please log in to ERESA in advance to use the service.
■Function No.3: Display of inventory numbers on Amazon.co.jp product pages
![](https://eresa.jp/wp-content/uploads/2022/04/eresazaikosuuhyouji1.jpg)
Displays inventory counts (up to 30 items supported) for cart box acquirers and other sellers.
![](https://eresa.jp/wp-content/uploads/2022/04/eresazaikosuuhyouji2.jpg)
For features common to other sites
■Function #1: Select a sentence and right-click to search the ERESA web version.
![](https://eresa.jp/wp-content/uploads/2022/04/eresanazottekensaku.jpg)
Is there any way to use the ERESA extension on my phone?
Extensions (add-ons) have many very useful functions, such as streamlining research work on Amazon, but they are only available on PCs.
However, there is actually a way to use it on your smartphone! *As of May 2022, only Android devices (smartphones, tablets, etc.) will be available.
More details are explained in the following article.
Frequently Asked Questions
- The ERESA extension is no longer appearing on Amazon.
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After restarting the browser, please check if the extension is enabled in the settings menu of the extension.
*If you do not see the icon for settings, click on the “puzzle icon ” next to the address bar, then click on the pin icon.