Fabric Mods for Minecraft 1.21
Browse 9 free Fabric mods for Minecraft 1.21 — popular picks include Just Enough Building Blocks, BlazeMon, Opaque.
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Just Enough Building Blocks
Adds a variety of different building blocks. Vertical slabs, and more.
BlazeMon
A cobblemon centered modpack that adds lots of food, exploration, building, decoration and technical mods designed by (and for) the BlazeCraft server
Opaque
Build with glass like it’s a box of coloured candy. Opaque adds a full set of glass building parts in every vanilla glass color (plus clear): doors, trapdoors, fences, fence gates, and stairs. They look airy light and bright
ClubNub
A ClubNub Pack designed for singleplayer and/or use on the official ClubNub SMP Server. The pack is a vanilla-like experience with emphasis on building, new blocks, decorations, farming and custom NPCs.

CobbleHelx Modpack (Cobblemon)
A Two Way created modpack revolving around Cobblemon built around exploration, building, and multiplayer gameplay. The pack combines Cobblemon with decoration mods, quality-of-life and our own CobbleHelx Relics to indulge you in the Helx universe.
CHAN modpack
Optimization mods for BETTER performance and Iris for shaders. Mods for building blocks and decorations, and more.
Modded Life
A comprehensive Minecraft modpack enhancing gameplay with performance optimizations, quality-of-life tools, and expanded building and decoration options. Includes libraries, APIs, and utilities to streamline modding and improve the overall experience.
Empiremodpack
A stylish, cozy Minecraft modpack designed with creativity in mind—perfect for building, decorating, and exploring without the chaos of magic or overpowered mobs
Sofi&Rafa Land
A modpack mainly focused in building/decoration and cobblemon