See Optifine Alternatives for a few useful client side only mods!
Mods on this list are marked as outdated when they are two major Minecraft versions old - e.g. if 1.16 is the latest version, 1.14 and older mods are considered outdated.
Bugfixes
| Chunk Saving Fix | CurseForge | outdated |
| Dimension Mutability | CurseForge | outdated |
| Dimension Update Fixer | CurseForge | outdated |
Building
Chat
| Chat History | CurseForge | outdated |
| simplechat. | CurseForge | outdated |
| Text Coloriser Plugin | CurseForge | outdated |
Join Messages/MOTD
| CustomJoinMessagesFabric | CurseForge | outdated |
| EasyMOTD | CurseForge | outdated |
Chat Linking
Discord
| DatChat | CurseForge | outdated |
| Discord Fabric Whitelister | CurseForge | outdated |
| Interweave | CurseForge | outdated |
Matterbridge
| MatterLink | CurseForge | outdated |
Twitch
Claims/World Protection
Commands
| Command Alias Creator | CurseForge | outdated |
| Gestus | CurseForge | outdated |
| Handy Structures | CurseForge | outdated |
| MaskOfLoki's Fabric Tweaks | CurseForge | outdated |
| pride | CurseForge | outdated |
| SetPlayerData | CurseForge | outdated |
| Slapmap | CurseForge GitHub | outdated |
| Tagboard | CurseForge | outdated |
| capit_alists' gameplay commands | CurseForge | outdated |
| Walaryne's Fly Mod | CurseForge | outdated |
| Who's pet is this? | CurseForge | outdated, abandoned |
Teleportation/Homes
| FabricHomes | Modrinth CurseForge | succeeded by BlossomHomes, outdated |
| FabricTPA | Modrinth CurseForge | succeeded by BlossomTPA, outdated |
| FabricWarps | Modrinth CurseForge | succeeded by BlossomWarps, outdated |
| FabriKommander | CurseForge | outdated |
| Random Teleport | CurseForge | outdated |
Cursed
Economy/Shops
| GShop | Modrinth CurseForge | outdated |
Gamemodes/Minigames
| BattleMod | CurseForge | outdated |
| Manhunt | Modrinth CurseForge | outdated |
| SoulSplit (ThirdLife) | CurseForge | outdated |
Inventory
| GVault | Modrinth CurseForge | outdated |
| keepinventory-command | CurseForge | outdated |
| SimpleServerSorter | CurseForge | outdated |
| Starting Notes | CurseForge | outdated |
NPCs
Performance
| RandomPatches | Modrinth CurseForge | outdated |
Affects behaviour
These mods make significant changes that may impact behaviour in-game, or reduce the work done (e.g. ticking, chunk loading) by the server. Technical servers may not want to use these.
| Overworld Two | CurseForge | outdated |
Quests
Server Management
| ModUpdater | CurseForge | outdated |
| PathWatcher | CurseForge | outdated |
| ReloadAnnouncer | CurseForge | outdated |
| TBPlugin | CurseForge | outdated |
| Fabrilous Updater | CurseForge | outdated, abandoned |
Anticheat/Anti X-ray
Backups
| Auto Backup | CurseForge | outdated |
| Minesave | CurseForge | outdated |
Console/Logs
| Shut Up Console | CurseForge | outdated |
| Translated Server Log | CurseForge | outdated |
| Fabric Console | CurseForge | outdated, abandoned |
Datapacks
| Data Loader | CurseForge | outdated |
Gamerules
Logging/auditing
| DeltaLogger | CurseForge | supersedes WatchTower and BlockLogger, outdated |
Multiworld/Dimensions
Permissions/Roles
| TeamPerms | Modrinth CurseForge | outdated |
Pregeneration
Profiling/Debugging
Protocol tricks - Cross-version/edition compatibility, resource packs for client-required mods
Proxy forwarding (BungeeCord/Waterfall/Velocity)
| Trampoline | CurseForge | outdated |
Resource packs
Server List modifications
Statistics/Analytics
Tab List modifications
Tweaks
Cauldrons
Combat
Crafting
| Logical Recipes | CurseForge | outdated |
Dispensers
Enchanting/Enchantments
| Disable Riptide | CurseForge | outdated |
Fishing
| Old Fish Farm | CurseForge | outdated |
Flight
| BeaconFlight | CurseForge | outdated |
| Disable Elytra Flight | CurseForge | outdated |
| Totally Balanced Creative Flying | CurseForge | outdated |
Game Mechanics Tweaks
| Bed Stability | CurseForge | outdated |
| Bedrock Blocks | CurseForge | outdated |
| Lid Space | CurseForge | outdated |
| Make Every Biome Spawnable Lol | CurseForge | outdated |
| MaskOfLoki's Fabric Tweaks | CurseForge | outdated |
| Piston Control | CurseForge | outdated, works best with client mod installed |
| Silky Spawners | CurseForge | outdated |
| Spawner Config | CurseForge | outdated |
| Trample Stopper | CurseForge | outdated |
Graves/Death
| keepinventory-command | CurseForge | outdated |
| Ueaj's Graves | CurseForge | outdated |
| VanillaDeathChest | Modrinth CurseForge | outdated |
Minecarts
Mobs
| Daylight Mobs | CurseForge | outdated |
| MobCapped | CurseForge | outdated |
| No Ambient Mobs | CurseForge | outdated |
| No Striders | CurseForge | outdated |
New Game Mechanics
| Flora Doubling | CurseForge | outdated |
| Imbued Torches | CurseForge | outdated |
| Notchify | CurseForge | outdated |
| Splash Concrete | CurseForge | outdated |
| VanillaEndervators | CurseForge | outdated |
Villagers
Utility / Quality of Life
| I Am Very Smart | CurseForge | outdated |
| SimpleHarvest | CurseForge | outdated |
Cosmetic
Sleep (Voting/Acceleration/etc)
| Better Respawn | CurseForge | outdated |
| BetterSleeping | CurseForge | outdated |
| BetterSleepPlus | CurseForge | outdated |
| Hypnos | Modrinth CurseForge | outdated |
| SleepPunisher | CurseForge | outdated |
| Wake Up | CurseForge | outdated |
Tree/Leaf removal/decay
| Leaf Me Alone | CurseForge | outdated |
Web Maps
Worldgen
| Smooth Bedrock (<=1.16.1) | CurseForge | outdated |
| Climatic World Type | CurseForge | outdated |
| No Lakes | CurseForge | outdated |
| NoWaterCaves | CurseForge | outdated |
| SecureSeed | CurseForge | outdated |
| Simplex Terrain Generation | CurseForge | outdated |
| Upstream | CurseForge | outdated |