# Keyboard Checker

> Hardware keyboard checker

Canonical page: [https://chrome-stats.com/d/com.moonsu.keyboardchecker](https://chrome-stats.com/d/com.moonsu.keyboardchecker)

## Overview

- **ID:** `com.moonsu.keyboardchecker`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** THE MESSAGE Co., Ltd
- **Category:** TOOLS
- **Downloads:** 81,069
- **Rating:** 2.57 / 5 (245 ratings)
- **Version:** 2.1.4
- **Last updated:** 2021-12-28
- **First published:** 2020-04-26
- **Publisher country:** KR
- **Data as of:** 2026-09-15
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.moonsu.keyboardchecker)
- **Privacy policy:** [https://moonsu.tistory.com/61](https://moonsu.tistory.com/61)

## Description

Keyboard Checker is a straightforward Chrome extension designed to verify the operation of your hardware keyboard. By installing this app and connecting your keyboard, you can quickly identify which keys are functioning correctly. It provides an easy and efficient way to test your keyboard without needing specialized equipment or software. Ideal for troubleshooting hardware issues or ensuring keyboard reliability.

## Rankings

- #243,440 — Overall

## Review summary

User reviews for Keyboard Checker are mixed. While several users find it to be a useful offline tool for testing keyboards and mouse inputs and praise its simplicity and ease of use, many report critical issues including frequent crashes, inability to launch the app, and bugs especially with mouse button functionalities. The app appears outdated and unstable on various devices, limiting its practical use for multiple users.

### Pros

- Works offline, useful for testing keyboards without PC and internet connectivity
- Simple and easy to use
- Able to test various input devices like keyboards, pads, and mice
- Perceived as a nifty and great tool by some users
- Smooth running and highly recommended by some users

### Cons

- App crashes immediately or frequently
- Does not launch or open on many devices
- Bugs related to mouse button testing (e.g. right click, middle button)
- Outdated app causing functionality issues
- Fails to work properly for mouse inputs

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.moonsu.keyboardchecker)