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About · licence · disclaimer

A launcher you can read.

SalmonLauncher is an open-source project maintained by one person. The aim is not to have the most features, but to lay the chain of download, launch, fail and fix in front of you.

SL / ABOUT
GPL-3.0-OR-LATER
EST. 2026

Why another launcher

Existing tools tend to split in two: ones light enough to run anywhere but which say only “launch failed”, and ones with every feature, split across pages that do not know about each other, leaving you to guess when something breaks.

This project takes a third route: every stage shares the same state, and every step is visible. Downloads carry verification records, launches report stage by stage, crashes are signature-matched, and mod toggling is just a rename.

It is built with WinUI 3 and the Windows App SDK, with a two-pane master–detail navigation and a page stack. Underneath, data, business and presentation layers depend only one way.

3layers
7domains
4languages
2themes
Release identity 
name        SalmonLauncher (SL)
version     1.0.3
platform    Windows 10 2004+ / 11, x64
toolkit     WinUI 3 · Windows App SDK
runtime     .NET 10 (self-contained)
licence     GPL-3.0-or-later
copyright   (C) 2026 Hugo Mou
source      github.com/HugoMou/salmonlauncher
Data stays local. Settings, account sessions, logs, instances and worlds are written under %APPDATA%\SalmonLauncher. Only downloads and metadata requests go to the network.
01 —

Licence

GPL-3.0-OR-LATER

This project is released under the GNU General Public License, version 3 or any later version. You may run, study, modify and redistribute it, including for a fee, as long as you keep the copyright and licence notices and give recipients the complete corresponding source code.

The full licence text is in the LICENSE file at the repository root and on the GNU website.

Read GPL-3.0 Repository LICENSE
SalmonLauncher (SL)
Copyright (C) 2026 Hugo Mou

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
02 —

Disclaimer

Read this

No affiliation

  • This is a free third-party tool with no affiliation or authorisation from Mojang Studios or Microsoft.
  • Minecraft is a trademark of Mojang Studios.
  • The app does not bundle, distribute or modify any Minecraft game files.
  • Game files come from official sources or public mirrors.

Use at your own risk

  • Mods, shaders and resource packs come from public platforms such as Modrinth and remain their authors' property.
  • The software is provided “as is”, without any express or implied warranty.
  • Back up worlds and instances before important operations.
  • Using the app means you have read and accepted the Terms of Use and Disclaimer shown inside it.
03 —

Credits

Standing on shoulders

This project could not exist without these public services:

  • Mojang's version manifest and resource services (piston-meta, libraries, resources)
  • The China mirror provided by BMCLAPI
  • Java runtimes and mirrors from Eclipse Adoptium and TUNA
  • The content catalogue and API from Modrinth
  • Installer building from Inno Setup
  • Everyone who reported issues, tested builds and contributed translations
Contact: Report bugs on GitHub Issues. For security matters, avoid pasting full logs or personal information into a public issue.
Open an issue Browse the source
Get started

Done reading. Install it.

Windows 10 2004+ / 11 · x64 · runtimes included

Download 1.0.3 Read the docs