Below are some of the most frequently cited "extra quality" or high-performance clients currently used:
Eaglercraft has revolutionized the way players experience Minecraft by bringing a fully functional 1.5.2, 1.8.8, and 1.12.2 experience directly to the web browser. For those looking to push the boundaries of this browser-based version, —often called "modded clients" or "utility clients"—offer features like FPS boosts, custom GUIs, and competitive advantages.
Modified clients for Eaglercraft range from simple UI improvements to full-blown exploit suites.