The community has developed several iterations of launchers, often adding modern "Quality of Life" features that weren't in the original versions:
Eaglercraft is a fan-made project that uses decompiled Minecraft code. While not officially endorsed, many developers treat it as a learning tool and research project. Some repositories include disclaimers encouraging users to purchase official Minecraft. eaglercraft client launcher
Here’s a ready-to-post write-up for – suitable for Reddit, Discord, or a community forum. The community has developed several iterations of launchers,
Developers are also working on a "Universal Eaglercraft Launcher" that will allow players to switch between Beta 1.3, Release 1.5.2, and 1.8.8 with a simple dropdown menu—all without downloading a new client. eaglercraft client launcher
FlameDevV2 Key Features: