In-Game Account Switcher

In-Game Account Switcher allows you to change which account you are logged in to in-game, without having to restart Minecraft.

Dependencies

Fabric: Fabric API (Required), Mod Menu (Optional)
Quilt: QFAPI/QSL (Required), Mod Menu (Optional)
Forge: (none)
NeoForge: (none)

FAQ

Q: I need help, have some questions, or something else.
A: You can look at the docs for Terms and Privacy, Crypt, Stolen Accounts, Common Errors, Secure Log Sharing, or you can join the Discord server.

Q: Where can I download this mod?
A: Modrinth, CurseForge, GitHub. You can also find unstable builds at GitHub Actions, to download them you'll need a GitHub account.

Q: Which mod loaders are supported?
A: Forge, Fabric, NeoForge. Quilt should work too.

Q: Which versions are supported?
A: Minecraft 1.18.2, 1.19.2, 1.19.4, 1.20.1, 1.20.2, 1.20.4, 1.20.6, 1.21.1, 1.21.3, 1.21.4, 1.21.5. Old mod versions (for MC 1.8.9, 1.12.2, etc.) are not supported.

Q: Do I need Fabric API or Quilt Standard Libraries?
A: Yes, you'll need Fabric API for Fabric/Quilt. On Quilt, you can install QFAPI/QSL instead. Obviously, you do NOT need them for Forge or NeoForge.

Q: Help, I have shared my account with someone! Someone is using my account via In-Game Account Switcher!
A: Read the "Stolen Accounts" page.

Q: I'm using an old version (for 1.8.9/1.12.2) of the mod and it gives me the "SSLHandshakeException" error, how do I fix it?
A: You need to update your Java 8 to a newer build. You can use any Java vendor that you want, there's little to no difference, popular choices: Eclipse Temurin (Windows, macOS, Linux), Azul Zulu (Windows, macOS, Linux), Amazon Corretto (Windows, macOS, Linux).

Q: I'm using Feather/Lunar Client and the mod doesn't work properly (the button doesn't appear, the account list is empty, etc), when you will fix this?
A: These clients break lots of things. Since they are closed-source, we cannot add compatibility with them. You should ask client developers to fix any issues. Many of this clients have their own built-in account switcher, use it instead.

Q: Can I import/export my accounts from/into a file? Can I use access tokens/cookies to add Microsoft accounts? Will you add this?
A: No. This kind of behavior is either shady or prohibited by Minecraft EULA.

Q: Is this mod open source?
A: Yes. (Licensed under GNU LGPLv3)

Q: I've found a bug.
A: Report it here. If you are not sure if this is a bug, you can join the Discord. If you think this bug is critical enough not to be disclosed publicly, please, report it as described in the security policy.

Screenshots

Credits

Thanks to the minecraft.wiki/Microsoft_authentication (previously was on wiki.vg) page contributors for providing useful information about Microsoft authentication.

Thanks to the Methanol developers for providing a cool HTTP client we use to automatically upload 30+ files to Modrinth, CurseForge, and GitHub.