HomeJava1.21

Minecraft Java 1.21 Mods

Browse 28 free mods for Minecraft Java 1.21 — popular picks include AL's Dungeons Boss Bars, Mob AI Tweaks, Twilight Tweaks.

Updated daily

FiltersBosses×Utility×Clear all
AL's Dungeons Boss Bars
1.21.5

AL's Dungeons Boss Bars

A pack that makes the Boss Bars in the style of Minecraft Dungeons!

1.5Mdownloads
Mob AI Tweaks
1.21.11fabric

Mob AI Tweaks

Tweaks certain mob AIs, major or minor. Reworks the Wither and Ender Dragon boss fights!

1.4Mdownloads
Twilight Tweaks
1.21.1neoforge

Twilight Tweaks

Adds a very configurable final boss among other config options.

1.3Mdownloads
Invisible Boss Bars
1.20.2

Invisible Boss Bars

Simply hide your boss bars & just keep the text. Hide either all boss bars, only progress or just hide boss bars with 0 progress (empty)

10kdownloads
Belzebuth Nether Kingdom
1.21.5

Belzebuth Nether Kingdom

Adds a news structure to the Nether, The Belzebuth Castle, along with a new Boss, New Tools, New Items, New Enemies and New Music Discs!

6.8kdownloads
BB's Bosses Of Mass Destruction Tweaks
1.20

BB's Bosses Of Mass Destruction Tweaks

Tweaks the models and textures from the Bosses Of Mass Destruction mod to match my art style.

6.5kdownloads
Boss AI Tweaks
1.21.1neoforge

Boss AI Tweaks

Mob AI Tweaks but only the boss changes

6.1kdownloads
Boss Bars: Reloaded
1.21.6

Boss Bars: Reloaded

Compact boss bars for that preserve functionality while reducing UI clutter.

2.5kdownloads
Waypoints and Bossbars
1.21

Waypoints and Bossbars

Adds raiders, trial mobs, skeleton horsemen and bosses to the locator bar and gives trial spawners and skeleton traps bossbars.

2.2kdownloads
L_Ender's Cataclysm X Terraria Calamity Music
1.20.1

L_Ender's Cataclysm X Terraria Calamity Music

Resource Pack that replaces the boss themes of the bosses from L_Ender's Cataclysm with songs from the Terraria Calamity mod.

2.0kdownloads
Boss Checklist - Mob AI Tweaks Compatibility
1.21.1neoforge

Boss Checklist - Mob AI Tweaks Compatibility

Integrates the Ominous Phantomare boss as well as the reworked Elder Guardian and Ravager from Mob AI Tweaks as entries in the Boss Checklist mod.

1.3kdownloads
Broadcast Pixelmon
1.21.1neoforge

Broadcast Pixelmon

BroadcastPixelmon is a server-side Pixelmon sidemod that broadcasts global chat messages when Legendaries, Shinies, Bosses, Ultra Beasts, and Raid Legendaries spawn, including coordinates, biome, and clickable JourneyMap waypoints.

1.2kdownloads
tomocraft
1.21.1fabric

tomocraft

A Vanilla+ experience with subtle enhancements. Improved animations, better terrain, new structures, QoL tweaks, a minimap, and even a few custom bosses. Perfect for players who love vanilla Minecraft but want a smoother, richer, and slightly expanded adve

979downloads
Fractured Vanilla
1.21.1fabric

Fractured Vanilla

A 1.21.1 Fabric modpack with 300+ mods enhancing Minecraft. Enjoy stunning biomes, smooth animations, optimized performance, epic bosses, and QOL tweaks.

499downloads
Fables: Bosses
1.21.6

Fables: Bosses

Changes the models of every boss in minecraft (Currently only includes the wither)

154downloads
Chain Accessories Resource Pack
1.21.9

Chain Accessories Resource Pack

Wear chains like a boss

104downloads
Mob Icons+
1.21

Mob Icons+

Hostile mobs become easier to recognize at a glance with clean pixel face icons for UI elements, boss bars, and compatible minimaps.

98downloads
Kris's texts
1.21.11

Kris's texts

Replaces Minecraft’s English (US) text with clean, consistent sentence case for improved readability, while preserving proper nouns, dimensions, and boss names.

82downloads
IsraelBoss' Middle-earth Russian translation
1.21.8

IsraelBoss' Middle-earth Russian translation

Русский перевод мода Middle-earth, соответствующий стандартам ванильной локализации

65downloads
刷怪塔实用设备boss栏隐藏修复
1.21

刷怪塔实用设备boss栏隐藏修复

修复了在中文语言下凋零和末影龙血条不能被死亡音效消除器隐藏的bug

54downloads
BB's Bosses of Mass Destruction Tweaks Resource Pack (1.21.11, 1.20.1)
1.21.11

BB's Bosses of Mass Destruction Tweaks Resource Pack (1.21.11, 1.20.1)

BB's Bosses of Mass Destruction Tweaks Resource Pack restyles the monsters and items in the Bosses of Mass Destruction mod. It changes the textures and 3D models of the big enemies so they look totally different. This pack gives the giant creatures a fresh coat of paint to fit a custom art style. Features: Updated […]

Blade Addons Mod (1.21.8, 1.21.5) – Hypixel Skyblock Utility Mod
1.21.8fabric

Blade Addons Mod (1.21.8, 1.21.5) – Hypixel Skyblock Utility Mod

Blade Addons Mod is a utility mod for Hypixel Skyblock that fills in missing features from other mods. It provides dungeon‑focused tools, timers, counters, and quality‑of‑life improvements to enhance gameplay. Features: Adds /ba refill command for dungeon runs. Chest counter works only in boss fights. Exposure shot calculation limited to boss fights. Diana event notifier […]

Twilight Tweaks Mod (1.21.1, 1.20.1) – A True Final Boss to Conquer the Forest
1.21.1forge

Twilight Tweaks Mod (1.21.1, 1.20.1) – A True Final Boss to Conquer the Forest

Twilight Tweaks Mod adds configurable features to The Twilight Forest mod. This addon introduces a final boss spawner, giving the dimension a new ultimate challenge. By default, the spawner summons a very strong husk with reinforcements to fight. The mod also allows you to change what the spawner does, like summoning a different mob or […]

Torrezx Better Boss Bar Resource Pack (1.21.1, 1.20.1) – Texture Pack
1.21.1

Torrezx Better Boss Bar Resource Pack (1.21.1, 1.20.1) – Texture Pack

Torrezx Better Boss Bar Resource Pack enhances the appearance of the boss health bar in Minecraft. Instead of the default bulky bar, it offers a cleaner, more modern look with improved readability and subtle design tweaks. Screenshots: Torrezx Better Boss Bar Resource Pack Download Links For Minecraft 1.21.x 16x: Download from Server 1 – Download […]

F Zero Drops Mod (26.2, 1.21.11) – Keep Your Loot After Death and Fight Harder
1.21.11

F Zero Drops Mod (26.2, 1.21.11) – Keep Your Loot After Death and Fight Harder

F Zero Drops Mod tweaks daily survival rules to change how you play. It alters how you fight bosses, fly with wings, and keep items after a bad fall. Features: You keep your hotbar, armor, and offhand items when you die, and your dropped items sit safely in a special minecart. Gives you a death […]

Better MC BMC5 Modpack (26.2, 1.21.1) – Explore New Dimensions And Bosses
1.21.1

Better MC BMC5 Modpack (26.2, 1.21.1) – Explore New Dimensions And Bosses

Better MC BMC5 Modpack transforms your game into a massive exploration adventure with over 320 mods on the NeoForge engine. You can explore seven different dimensions, fight giant bosses, and complete quests that guide you through your journey. It also updates the graphics with built-in shader support and adds helpful tools like minimaps and backpacks […]

Sky Ocean Mod (26.2, 1.21.11) – QOL SkyBlock Toolkit
1.21.11

Sky Ocean Mod (26.2, 1.21.11) – QOL SkyBlock Toolkit

Sky Ocean Mod adds item value tracking, storage search, Slayer highlights, fishing tweaks. Features: Item Info: View item value breakdowns with a keypress. Storage Search: Instantly search across your ender chest, vault, and more. Fishing Enhancements: Trophy tracking, lava-to-water visuals, hotspot highlights. Slayer & Mining Tools: Highlight bosses, tweak HOTM progress, and commissions. Garden Upgrades: […]

No Frills Mod (26.1.2, 1.21.11) – Hypixel QoL Toolkit
1.21.11

No Frills Mod (26.1.2, 1.21.11) – Hypixel QoL Toolkit

No Frills Mod offers a massive toolkit of UI tweaks, solvers, visual enhancements, and bug fixes for Hypixel Skyblock. Features: No loading screen, hidden overlays, fewer particles. Custom swing speed, disable fire overlay, clean viewmodel. Etherwarp highlight, price tooltips, rare mob alerts. Chronomatron, Ultrasequencer, Melody, Terminals, Devices. Track bosses, mobs, power, bobbers, and sea creatures. […]