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Minecraft Java 1.21 Mods

Browse 937 free mods for Minecraft Java 1.21 — popular picks include msf, Aetheria Shaders, Quanta Shader.

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msf
1.19.3

msf

Lightweight Minecraft shader creating a smooth blue iris glow with subtle pulsing, prettier and more performance-friendly than BSL.

86kdownloads
Aetheria Shaders
1.21

Aetheria Shaders

Aetheria Shaders is a gorgeous fantasy modification of Complementary Reimagined. Features custom dimension atmospheres, glowing teal water, galaxy-themed Nether portals, flowing molten lava, and a volumetric End tornado. High performance guaranteed.

60kdownloads
Quanta Shader
1.21

Quanta Shader

Fast, beautiful Minecraft visuals. Soft shadows, dynamic clouds, reflective water and rich skies, optimized for high FPS gameplay.

57kdownloads
Create Essentials | Better Experience with Create 6.0 and Addons
1.21.1neoforge

Create Essentials | Better Experience with Create 6.0 and Addons

Create, Optimization and Shaders addons only!

49kdownloads
BoostedCraft – Performance, FPS Boost & Shaders
1.21.11fabric

BoostedCraft – Performance, FPS Boost & Shaders

Would you like to experience Minecraft with stunning shaders and improved performance? With BoostedCraft Shaders & Performance, you'll enjoy breathtaking graphics, advanced optimization, and smoother gameplay for limitless exploration.

40kdownloads
Buildie - Your Ultimate Builder's Toolkit
1.21.1fabric

Buildie - Your Ultimate Builder's Toolkit

Buildie is the ultimate toolkit for creative builders. A curated selection of decoration mods (Macaw, Yuushya, Chipped, Cluttered) and essential tools (Axiom, WorldEdit), fully optimized for performance with native Shader support.

14kdownloads
RealisticRemake
1.21.8

RealisticRemake

A lightweight realistic shader with soft mist, sun shadows, god rays, and swaying leaves — built for smooth performance on modest GPUs.

14kdownloads
RG Shader | A visual shader
1.21

RG Shader | A visual shader

Best Visual Pack for Java ! . waving leaves/water, smooth lighting , Better & no lag on low-end devices. Boost visuals without hurting performance!

12kdownloads
Rainbow Enchantments Glints
1.21

Rainbow Enchantments Glints

Rainbow Enchantment Glint replaces the default enchantment glow with a vibrant, animated rainbow effect. Works on all enchanted items, fully shader-friendly, and has no performance impact. Brighten up your gear with a stunning multicolor shine! 🌈✨

8.0kdownloads
Optimization Ultra
1.21.4fabric

Optimization Ultra

This modpack consists of tons of mods, resource packs, and shaders for optimization, and beauty client sided tweaks, QOL things, and cutting edge graphics.

6.4kdownloads
FPS Lovers 2
1.21.1neoforge

FPS Lovers 2

This is a modpack focused on FPS, as it adds in mods such as Embeddium, Ferrite Core, ModernFix, EVEN OCULUS LIGHTWEIGHT SHADERS!!

2.8kdownloads
Epic Shaders Good Performance
1.21.11neoforge

Epic Shaders Good Performance

This all-in-one performance pack on Modrinth combines the most effective FPS mods into one streamlined package.

1.8kdownloads
SpectraDrox Ultra Shaders
1.17.1

SpectraDrox Ultra Shaders

High-performance shader pack offering clean visuals, vibrant tones, and optimized FPS.

1.8kdownloads
Hearthglow Cottagecore Shaders (Cozy )
1.17.1

Hearthglow Cottagecore Shaders (Cozy )

Hearthglow is a cottagecore shader for Minecraft (Iris & OptiFine): warm ambient light, soft glow, pastel tones. No other shader is built specifically for the cozy aesthetic.

1.6kdownloads
Lightweight Lighting
1.21

Lightweight Lighting

Lightweight Lighting is a performance-focused Minecraft shader pack designed specifically for low-end "potato" PCs and laptops. this pack selectively overhauls Minecraft's rendering engine to deliver high-quality visuals without dropping frames.

1.4kdownloads
BetterMon - A Better Adventure [Cobblemon]
1.21.1fabric

BetterMon - A Better Adventure [Cobblemon]

The One and Only Cobblemon Modpack | All 1025 Pokémon Supported | Badges | Optimized Biomes & Structures | Cobblemon-Style Music | Shaders | Optimized

1.3kdownloads
FeelsBHaddMan's Client-Side Favorites
1.21fabric

FeelsBHaddMan's Client-Side Favorites

A Fork of the Fabulously Optimized Modpack with a sprinkling of QoL improvements, HUD enhancements, verbose tooltips, shaders, farther renders, animated entities, world and mini map, and many more!

1.0kdownloads
CleanCraft by ACUL
1.21.1fabric

CleanCraft by ACUL

CleanCraft is a lightweight Vanilla+ Fabric modpack focused on performance, visuals, and quality-of-life. Featuring Sodium, shaders, Xaero’s map, Tom’s Storage, and more—it's perfect for builders, explorers, and smooth multiplayer.

886downloads
TheHolShader Shader
1.17.1

TheHolShader Shader

A realism-focused shaderpack with dynamic shadows, animated water, volumetric god rays, drifting clouds, and full in-game customization — built for OptiFine and Iris.

671downloads
Asylum Visuals & Quality of Life Pack
1.21.1fabric

Asylum Visuals & Quality of Life Pack

A visually-enhanced pack focused on shaders and performance-boosting QoL mods for solo play and multiplayer servers.

652downloads
CozyCorners
1.20.1fabric

CozyCorners

A warm, comfy, performance-boosted vanilla+ experience. Enjoy a beautifully enhanced world with shaders, animations, soundscapes, and quality-of-life features — all while keeping Minecraft’s core gameplay intact.

641downloads
Vantage – PvP Optimized Shader
1.17.1

Vantage – PvP Optimized Shader

A PvP-optimized Minecraft shader (Iris & OptiFine): lifted shadows, sharpened image, vivid cinematic tones — see every enemy, look great doing it.

621downloads
Client Pack Lite
1.21.11fabric

Client Pack Lite

A Client Side pack with shaders, sodium, and zoom for playing on realms/servers

615downloads
Better FPS Remake
1.21.11fabric

Better FPS Remake

Better FPS Remake is a lightweight Minecraft optimization modpack that boosts FPS, reduces lag, improves stability, includes built-in shaders, and features easy multiplayer through e4mc for a smoother experience.

550downloads
Ray Of Lighting
1.21.4fabric

Ray Of Lighting

Ray of Lighting is a performance-focused Minecraft modpack designed for client-side optimization. It includes quality-of-life features like a minimap, Roughly Enough Items (REI), and shaders.

504downloads
InfinityProject
1.21.1neoforge

InfinityProject

InfinityCraft is a premium Minecraft modpack that blends limitless adventure, cinematic shaders, and magical progression into one vibrant, high-performance sandbox experience.

412downloads
Queso Pack
1.21.1neoforge

Queso Pack

Queso Pack is a QSMP 2-inspired modpack blending Create automation, overhauled exploration, and Farmer's Delight cooking with stunning visuals via Iris shaders and Distant Horizons — all optimised for smooth, social multiplayer fun.

344downloads
AuraBound Shaders
1.21

AuraBound Shaders

A lightweight shader pack designed to boost performance while improving shadows and lighting.

192downloads
Vanilla Camera - Focus,CT &
1.21.11

Vanilla Camera - Focus,CT &

A lightweight shader pack for Iris Shaders that preserves. The vanilla look while adding camera-style post-processing effects such as exposure, color temperature, saturation, and depth of field.

86downloads
IR Lights Mod (1.21.11, 1.20.1) – Illuminate Your Builds with Cinematic Studio
1.21.11

IR Lights Mod (1.21.11, 1.20.1) – Illuminate Your Builds with Cinematic Studio

IR Lights Mod brings a real-time light editor directly into your game world. This mod lets you place point lights and spotlights with real shadows, fog beams, and custom projector shapes through Iris shaders. You can adjust colors, brightness, and angles on the fly to illuminate your builds or film cinematic videos. Features: Light Editor: […]

Epic Shaders Modpack (26.2, 1.21.1) – Amazing Beauty of Minecraft
1.21.1

Epic Shaders Modpack (26.2, 1.21.1) – Amazing Beauty of Minecraft

Epic Shaders Modpack is a vanilla themed modpack with lots of shaders & some quality of life mods. Get ready to change your Minecraft experience forever. Features: Latest update: Enjoy the latest update with some added quality of life mods! Performance: Thanks to Sodium and other performance enhancing mods. Iris Shaders: The pack features a […]

Monocle Mod (1.21.11, 1.21.1) – Run Beautiful Shaders Alongside Embeddium
1.21.11

Monocle Mod (1.21.11, 1.21.1) – Run Beautiful Shaders Alongside Embeddium

Monocle Mod extends Iris with the ability to run shaders while using Embeddium. It links these two popular tools together so players on NeoForge get beautiful lighting and shadows. You need both base mods installed for this addition to work correctly. Features: Lets you turn on shader packs when playing with the Embeddium mod. Connects […]

WynnIris Mod (1.21.11) – Play Wynncraft with Shaders Without Breaking Custom
1.21.11

WynnIris Mod (1.21.11) – Play Wynncraft with Shaders Without Breaking Custom

WynnIris Mod extends Iris Shaders with native support for Wynncraft visual effects. It renders custom skyboxes, weapon glints, and player emotes directly through your active shader pack. This mod acts as a direct replacement for the standard shader loader, allowing you to keep all the unique server visuals while running advanced graphics. Features: Wynncraft Skyboxes: […]

Neoculus Mod (1.21.1) – Runs OptiFine Shaders On NeoForge
1.21.1

Neoculus Mod (1.21.1) – Runs OptiFine Shaders On NeoForge

Neoculus Mod lets you run shader packs on newer game versions. It brings the tools of the Iris mod to NeoForge. You can make your game look beautiful while keeping a fast frame rate. Features: Accelerated Rendering: Uses your graphics card to draw items and text much faster. Swaying Garden: Makes modded plants and flowers […]

Sodium Core Shader Support Mod (26.1.2, 1.21.1) – Enables Custom Shaders
1.21.1

Sodium Core Shader Support Mod (26.1.2, 1.21.1) – Enables Custom Shaders

Sodium Core Shader Support Mod is a Minecraft mod that allows resource packs to replace Sodium’s internal shaders, much like how vanilla resource packs can override core shaders. It’s designed for players and creators who want custom visual effects while using the Sodium performance mod. Features: Shader Replacement Support: Lets resource packs override Sodium’s shaders […]

Accelerated Rendering Mod (1.21.1, 1.20.1) – Entity Rendering Optimization
1.21.1

Accelerated Rendering Mod (1.21.1, 1.20.1) – Entity Rendering Optimization

Accelerated Rendering Mod boosts FPS by offloading entity vertex transformations from the CPU to the GPU using compute shaders, making crowded areas and complex models render much faster. Features: Entity rendering optimization with GPU compute shaders. Faster vertex transformations and caching for complex models. Compatible with shader packs including Iris Shaders. Configurable acceleration features for […]