Your data stays on your computer
LINE Data Master processes everything locally. Your messages, contacts, and media files are never uploaded to any server.
How it works
1What we access on your PC
- ✓LINE's encrypted local database (read-only, never modified)
- ✓LINE's local media cache (image and video thumbnails)
2What our server receives
- •Your Google account email (for subscription verification)
- •Subscription verification token
That's it. Nothing else is ever sent to our server.
3What our server does NOT receive
✗Chat messages
✗Contact information
✗Images and videos
✗File attachments
✗Call logs
✗Stickers
None of your LINE data ever leaves your computer. Period.
4MCP Server security
The built-in MCP Server and REST API run locally and only listen on localhost.
127.0.0.1 (localhost)This service cannot be accessed from the outside network. Only programs on your computer can connect.
Verify it yourself
You don't have to take our word for it. Check the network traffic yourself and confirm nothing is being sent out.
View verification tutorial