Some Eaglercraft servers run plugins (e.g., Skyblock, KitPvP) that appear as mods to players — no client change needed.
Because Eaglercraft 1.8 is compatible with standard 1.8.x servers (via EaglercraftBungee), many "mods" are actually server-side plugins like Essentials , WorldEdit , or custom mini-games.
While traditional Minecraft mods like the Aether or Ice and Fire aren't natively on Eaglercraft, the community continues to find ways to bake these features into the browser version to keep it "hot" and relevant. Testing the BEST Eaglercraft Minecraft Clients