About MapleScanner

It only reads the screen

Everything comes from the picture of the game window, the same as a screenshot. MapleScanner never touches the game's memory, files, network traffic or ports.

What it sends

Prices need internet. MapleScanner sends the shop listings it read off your screen (item, seller, amount, price, channel, room and shop title) with an anonymous key made the first time it shares a scan. The key identifies the install, not you, and the price server keeps only a scrambled copy of it. Your IP address isn't stored.

Seller names are public, as they are in the game. It never sends pictures of your screen, and nothing about your account.

Sharing is your choice. The installer asks, and Share my scans in the app's Settings turns it on or off at any time. With it off, nothing is sent and you still get everyone else's prices.

Open source

MapleScanner is free software under the GNU GPL, version 3 or later. The source code is on GitHub, so anyone can check what it does, and so are the release notes.

Credits

• Item data from OSMS Data Explorer, CC BY 4.0, reduced to item names, NPC prices, scroll success rates, upgrade slots, main stat lines, plain gear stats, which gear has no description, which items recharge and item ids for icons. Item icons are downloaded from it once each: the app keeps them on your PC, and this website keeps one copy on its own server.
• Fonts: Nunito and Fredoka, under the SIL Open Font License 1.1.
• Text reading in the app: Tesseract.js and Tesseract, under the Apache License 2.0.
• The app is built with Electron (MIT), and updates itself with electron-updater (MIT).
• MapleStory and its game content are © Nexon. MapleScanner is an unofficial fan project, not affiliated with or endorsed by Nexon.