Get Started with Kunkun
Install the extension and start improving your Japanese writing.
Installation Guide
Follow these steps to install and set up Kunkun.
Create your account
Sign up using your Google account for secure, easy access.
Download the extensions
Get Kunkun from both stores for complete coverage across all your writing platforms.
Chrome Extension: Works on all websites with text input
Workspace Add-on: Dedicated sidebar for Google Docs, Sheets, Slides
Sign in with Google
When you first open Kunkun, simply click "Sign in with Google" to connect your account. We use Google's secure authentication — you never share your password with us.
Secure: Your Google credentials stay with Google. We only receive permission to verify your identity.
Start checking your Japanese everywhere
Use Kunkun across all your writing platforms:
- Chrome Extension: Works on Gmail, websites, and text fields
- Google Workspace Add-on: Integrated sidebar for Docs, Sheets, and Slides
First time using the Google Workspace Add-on? You'll be prompted to authorize permissions for document access and grammar checking. Click "Allow" to enable full functionality.
Enable Google Workspace permissions
When first opening Kunkun in Google Docs, you'll see permission requests:
- Click "Continue" to start authorization
- Select your Google account
- Review permissions and click "Allow"
- Return to your document to start checking
These permissions let Kunkun read and suggest improvements to your text while keeping your data secure.
Need help with installation?
Our support team is available to assist you with any questions about installing or using the extension.
What You Can Do
Once you're set up, here's what you get access to.
Real-Time Grammar Checking
Type in any text field and Kunkun highlights errors instantly. Click a highlight to see the explanation and suggested fix.
Customize Your Settings
Choose your politeness level, writing context, and whether you're a learner or native speaker. Your settings sync across all devices.
Review Your History
Every check is saved for 90 days. Filter by type to find past corrections and track your improvement.