Microsoft login connects TecniLauncher to your licensed Minecraft: Java Edition account. Once signed in, your username and skin are displayed in the launcher, and you can join servers that require a genuine (online-mode) account.Documentation Index
Fetch the complete documentation index at: https://mintlify.com/Tecnikero/TecniLauncher/llms.txt
Use this file to discover all available pages before exploring further.
Open the launcher and click Microsoft Login
Launch TecniLauncher and click Microsoft Login (also labeled Sign in with Microsoft on some screens).
Sign in with your Microsoft account
A browser window opens to Microsoft’s sign-in page. Enter the credentials for the Microsoft account linked to your Minecraft purchase.
Authorize TecniLauncher
Follow the prompts to authorize the launcher. TecniLauncher uses CmlLib, an open-source authentication library. Your password is never stored by the launcher.
Confirm your profile
Once authorized, your Minecraft username and skin appear in the launcher. Your skin is fetched from Minotar.
Your session token is saved locally at
%APPDATA%\.TecniLauncher\Data\tcl_session.json. This means you won’t need to sign in again on the next launch — TecniLauncher attempts silent re-authentication automatically at startup.Signing out
Click your profile avatar or account name in the launcher, then select Sign out. This deletes the saved session file at%APPDATA%\.TecniLauncher\Data\tcl_session.json.