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    2,053,304 files checkedFiles from Modrinth and CurseForge we downloaded and checked. Counted on 25 Oct 2026.636,163 files with their code readFiles whose code we turned back into readable code and read, in an isolated environment. Counted on 25 Oct 2026.269,472 projects gradedProjects with a letter from A to F. Counted on 25 Oct 2026.
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    © 2026 ModgradeNot an official Minecraft product. Not approved by or associated with Mojang or Microsoft.

    OptimumFuse

    Modpack

    A modpack that improves performance and visuals while keeping the game familiar.

    84%Modpack: 84% of its graded mods are A or Bof mods A or B
    • Overview84%
    • SecurityPassed
    • Privacy11 send data
    • AIIn 11 mods
    • CompatibilityUp to 1.21.5
    • ReleasesLatest Nov 2025

    Download

    OptimumFuse 1.15.0-beta.3+fabric.1.21.5.mrpack Beta

    Released 13 Jun 2025 · 831.6 KB

    Not checked: we have not checked this file yet.

    Download
    OverviewSecurityPrivacyAICompatibilityReleases

    Mod grades

    How grades work

    Modpacks get no grade of their own, so we show the grades of its mods. Of its 205 graded mods, 172 are graded A or B, 29 C and 4 D to F. Its last update came out 12 months ago, for Minecraft 1.21.5. See the mods

    Images

    • Featured
    • New Logo
    • Old Logo
    • Old Banner
    • 3D Particles
    • Shaders
    • Cool Effects
    • Fancy Tooltips
    • Dynamic Lights
    • Better Grass
    • CEM
    • C-Zoom
    • Connected Textures

    About

    OptimumFuse is a vanilla-oriented modpack that combines performance optimizations with visual and quality-of-life enhancements, taking inspiration from OptiFine while retaining Minecraft’s familiar feel. Its visual additions include shaders, dynamic lighting, connected textures, better grass, 3D particles, and more expressive player animations, alongside fancy tooltips and other OptiFine-parity effects. It also adds practical conveniences such as inventory sorting, in-game skin switching, enchantment descriptions, controller support, and a recycle bin for deleted worlds. Players can tailor the experience by disabling included mods, shaders, or resource packs, and can add their own mods, data packs, shaders, and resource packs.

    Written from Modrinth and CurseForge . How we write it

    Content of this pack212 of 212 checked

    The mods of its newest release (Minecraft 1.21.1 · Fabric, 5 Nov 2025). Each check result is for the latest files of that mod, which may not be the version in this pack.

    ProjectGradeSecurity
    Cloth Config APIMod · 569.3M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Mouse TweaksMod · 548.3M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Fabric APIMod · 527.1M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Architectury APIMod · 460M downloadsAPassedPassed: our checks found nothing harmful in the latest files.ControllingMod · 441.6M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Entity CullingMod · 425.1M downloadsAPassedPassed: our checks found nothing harmful in the latest files.SodiumMod · 412.7M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Iris ShadersMod · 337.4M downloadsAPassedPassed: our checks found nothing harmful in the latest files.ModernFixMod · 334.2M downloadsAPassedPassed: our checks found nothing harmful in the latest files.ImmediatelyFastMod · 329.5M downloadsAPassedPassed: our checks found nothing harmful in the latest files.KonkreteMod · 295.2M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Puzzles LibMod · 291.5M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Better AdvancementsMod · 284.7M downloadsAPassedPassed: our checks found nothing harmful in the latest files.[ETF] Entity Texture FeaturesMod · 272.2M downloadsAPassedPassed: our checks found nothing harmful in the latest files.YetAnotherConfigLib (YACL)Mod · 266.4M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Not Enough AnimationsMod · 263.3M downloadsAPartly checkedPartly checked: our checks found nothing harmful in the parts we could check.[EMF] Entity Model FeaturesMod · 252.9M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Mod MenuMod · 244.6M downloadsAPassedPassed: our checks found nothing harmful in the latest files.FerriteCoreMod · 243.7M downloadsAPassedPassed: our checks found nothing harmful in the latest files.LithiumMod · 242.4M downloadsAPassedPassed: our checks found nothing harmful in the latest files.SearchablesMod · 221.4M downloadsAPassedPassed: our checks found nothing harmful in the latest files.Fabric Language KotlinMod · 218.7M downloadsAPassedPassed: our checks found nothing harmful in the latest files.IcebergMod · 207.8M downloadsAPassedPassed: our checks found nothing harmful in the latest files.3D Skin LayersMod · 202.6M downloadsAPassedPassed: our checks found nothing harmful in the latest files.No Chat ReportsMod · 186.5M downloadsAPassedPassed: our checks found nothing harmful in the latest files.
    1 to 25 of 21212345…9

    1 file not listed: no matching project found.

    Changes since the previous release · 100 added, 42 removed

    Compared with the release of 30 Nov 2024 for the same platform, Minecraft version and loader. We do not compare the versions of the projects yet.

    Added
    Screenshot to ClipboardPrismPuzzleStarHUDServerCoreWhimscapeIcebergBare Bones - Connected TexturesBedrodiumBetter CloudsHey WikiCubic LeavesImmersive Messages APIEMIffectEnhancedTooltipsPacked PacksBetterF3Advancement PlaquesMerchant MarkersAuto Third PersonHold My ItemsBoat Item ViewA Good PlaceBare Bones x Fresh AnimationsCraftPresenceOnline EmotesTCDCommons APIDynamic Crosshair Compatblob's Enchant IconsImmersive TipsWhimscape Variated Villagers x Fresh AnimationsKonkreteClient SortServer Country FlagsBobbyItem interactions modWhimscape x Fresh AnimationsBare Bones: Compatibility plusBetter AdvancementsAsteorBarRedstone TweaksResolutionControl++Raise Sound Limit SimplifiedFresh BucketsInline TooltipsRespackoptsNoRecipeBookFresh FoodPlane AdvancementsBetter Smithing TableLibJFBetter Biome ReblendDisableHotbarWrapWorld Play TimeMas EffectsDynamic CrosshairMouse TweaksItem BordersDark Embellished Stone (Advancement Plaques)Item HighlighterBedrock-Style CursorsBetter Command AutocompleteWakesKryptonEMIInlinePommel - Held Item ModelsBadOptimizationsDistraction Free Recipes (EMI / REI / JEI)RedirectedImmersive HotbarCrash AssistantTalk BalloonsScreenshot ViewerArchitectury APIBare Bones - Better LeavesBetter Statistics ScreenHardware ReforgedUniLibCursors ExtendedHandfulquick packEmotecraftModListMemoryEMI LootYDM's Weapon MasterBare Bones x Particle EffectsBare BonesImmersive Damage IndicatorsSmooth Scrolling RefurbishedSmooth SkiesSmoothHudEMI EnchantingModern World CreationGenshinThirdPersonModern NetworkingSmooth SwappingWhimscape Variated VillagersWhimscape LeavesArmored Legacy
    Removed
    Held Item TooltipsSubtle EffectsSodium Extra InformationPick Block ProAdvancements FullscreenDelete Worlds To TrashSatin Free WakesDeathViewTipsTalkBubblesJJElytraSwapAdvancements SearchSmooth ScrollingSearch StatsBetter Third PersonMap TooltipBetter SuggestionsNo Hotbar Looping[ESF] Entity Sound FeaturesIndiumKaleidoThreatenGLFancy Block Particles - RenewedFixMCStatsColorful SubtitlesBlinking TotemImmersive:TooltipSodium Options Mod CompatPrickleInventive InventoryMidnightControlsMore CursorsMake Bubbles PopBedrock Inventory AnimationsOdyssey LiteEdgeless Chat ScreenToolTips StylizedModrinth project qsyTzDuiBookshelfBetter Recipe BookTiny Item AnimationsLower Shield
    Share graded A or B
    up 4 points

    Details

    Creators
    UltimatChamp and MissionWAR
    License
    Apache License 2.0
    Downloads
    47K
    Created
    13 Jul 2023
    Official pages
    Modrinth , CurseForge
    Links
    Source code , Issues , Wiki , Discord

    Security

    No harmful code found in its projects

    We checked all 212 projects and the files in the pack itself, without running them.

    Why we show this: a modpack installs the files of its mods, and each mod runs on your computer like any program. Our checks look for known signs of harm. They cannot prove that a file is harmless. In the grade: a modpack has no grade of its own, and each mod's result counts in that mod's grade.

    How we checked · All 212 projects checked
    • Its projects
      See what is in this pack
      212 projects
    • Files in the pack itself
      58 settings files, 1 resource, shader or data pack, 5 other files, 2 mod jars.
    • Author on ModrinthThe disclosure form on Modrinth, where the author declares that the project reads or edits things on your system outside the game. Since 13 Aug 2026, Modrinth's rules require it when this applies.
      Nothing declared about your system outside the game.

    Privacy

    11 mods send something about you

    We read the code of 186 of its 188 mods, without running it.

    Entity CullingCrash reports[ETF] Entity Texture FeaturesPlayer nameNot Enough AnimationsCrash reportsMod MenuUnknown data3D Skin LayersCrash reportsCrash AssistantUnknown dataCapesPlayer name +1Wavey CapesCrash reportsEmotecraftUnknown dataBetter CloudsUsage data +1Hey WikiUnknown data

    Why we show this: a modpack runs the code of its mods, and a mod can send things about you over the internet, like your player name or your login. Contacting an address to check for updates or download files sends nothing about you. Not in the grade: sending data can be normal for what a mod does.

    How we checked · 186 of 188 mods read
    • Go online onlyTheir code contacts a web address, for example to check for updates. We found nothing it sends about you.
      Iris ShadersDynamic FPSCraftPresenceDebugifyBetter Statistics Screene4mcStackDeobfuscatorNuitResourcifyImmersive TipsServer Country FlagsSkin ShuffleEnchantment LoreInlineOnline EmotesModpackUtilsBetter "Add Server"
      17 mods
    • Send nothing
      Their code contacts no web address.
      158 mods
    • Not read yet
      We have not read their code yet.
      2 mods

    AI

    AI used in 11 of the 188 mods we checked

    We found an AI tool in them, or their authors declared AI content.

    Iris ShadersdeclaredModernFixClaude CodePuzzles Libdeclared3D Skin LayersCodeRabbitForge Config API PortdeclaredBetterF3Claude CodePick Up Notifierdeclarede4mcClaude CodeEmotecraftClaude CodeServerAddressSpaceFixdeclaredResolutionControl++declared

    No sign so far that AI was used to make the pack itself

    We looked for AI tools in its texts and found none.

    We have not read its files, images and code history yet.

    Why we show this: some players and servers avoid projects made with AI, and AI in the game can send what you write to an online service. Not in the grade: using AI does not tell whether a project works well or is kept up to date.

    How we checked · 2 places read
    • Author on ModrinthThe disclosure form on Modrinth. Since 13 Aug 2026, Modrinth's rules require it when a substantial part of the code is AI output, when an asset is mainly AI output, or when the project or its page relies on generative AI.
      No AI content declared.
    • Code historyThe public code on GitHub: who made each change, credit lines such as "Co-authored-by", and its files.
      Not read yet
    • Description and changelogsThe description, project page and newest changelogs: sentences saying an AI tool was used, and text pasted from an AI chat.
      Nothing found
      21 of 27 changelogs read
    • Its filesFiles that AI coding tools leave behind (like AGENTS.md), and the texts inside the files you download.
      Not read yet
    • Images in its filesHidden data in the images of the files you download, where AI image tools write their name and settings.
      Not read yet

    Compatibility

    See all 179 files
    Fabric
    NeoForge
    Forge
    Quilt
    1.161.191.2126.1

    Point at or tap a version to see its loaders.

    Runs onWhere to install it: in your game, on the server, or both. As the author says on Modrinth.Install it in your game only. Servers do not need it, so you can join any server.
    RequiresProjects you must also install for it to work. From the author's lists for its files for recent Minecraft versions, or from its project page.Nothing
    OptionalProjects it can work with but does not need. The author lists them.Nothing
    IncludesProjects packed inside its files.212 projects, listed in the Overview tab.
    Speed of updatesHow fast it gets a file for new Minecraft versions, on average, compared with similar projects. Not part of the grade.Its newest file is for 1.21.5. It has no file for the 6 newer Minecraft versions. It also supports 1.21.4, a version many recently updated mods still support.

    179 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.21.1·Fabric1.16.0-fabric.1.21.11.16.0-fabric.1.21.1 · OptimumFuse 1.16.0+fabric.1.21.1.mrpack (main file)·5 Nov 2025PassedPassed: all 212 projects checked.Open this file on ModrinthNot on CurseForgeDownload · Stable · 379.9 KB
    1.21.5·Fabric1.15.0-beta.3-fabric.1.21.51.15.0-beta.3-fabric.1.21.5 · OptimumFuse 1.15.0-beta.3+fabric.1.21.5.mrpack (main file)Beta·13 Jun 2025Not checkedWe have not checked this file yet.Open this file on ModrinthNot on CurseForgeDownload · Beta · 831.6 KB
    1.21.5·Fabric1.15.0-beta.2-fabric.1.21.51.15.0-beta.2-fabric.1.21.5 · OptimumFuse 1.15.0-beta.2+fabric.1.21.5.mrpack (main file)Beta·24 May 2025Not checkedWe have not checked this file yet.Open this file on ModrinthNot on CurseForgeDownload · Beta · 828.7 KB
    1.21.5·Fabric1.15.0-beta.1-fabric.1.21.51.15.0-beta.1-fabric.1.21.5 · OptimumFuse 1.15.0-beta.1+fabric.1.21.5.mrpack (main file)Beta·15 May 2025Not checkedWe have not checked this file yet.Open this file on ModrinthNot on CurseForgeDownload · Beta · 829.0 KB
    1.21.4·Fabric1.14.6-fabric.1.21.41.14.6-fabric.1.21.4 · OptimumFuse 1.14.6+fabric.1.21.4.mrpack (main file)·7 May 2025Not checkedWe have not checked this file yet.Open this file on ModrinthNot on CurseForgeDownload · Stable · 428.7 KB
    1.21.4·Fabric1.14.5-fabric.1.21.41.14.5-fabric.1.21.4 · OptimumFuse 1.14.5+fabric.1.21.4.mrpack (main file)·10 Apr 2025Not checkedWe have not checked this file yet.Open this file on ModrinthNot on CurseForgeDownload · Stable · 428.8 KB
    1.21.4·Fabric1.14.4-fabric.1.21.41.14.4-fabric.1.21.4 · OptimumFuse 1.14.4+fabric.1.21.4.mrpack (main file)·1 Apr 2025Not checkedWe have not checked this file yet.Open this file on ModrinthNot on CurseForgeDownload · Stable · 428.0 KB
    1.21.4·Fabric1.14.3-fabric.1.21.41.14.3-fabric.1.21.4 · OptimumFuse 1.14.3+fabric.1.21.4.mrpack (main file)·31 Mar 2025Not checkedWe have not checked this file yet.Open this file on ModrinthNot on CurseForgeDownload · Stable · 429.9 KB
    1.21.4·Fabric1.14.2-fabric.1.21.41.14.2-fabric.1.21.4 · OptimumFuse 1.14.2+fabric.1.21.4.mrpack (main file)·21 Mar 2025Not checkedWe have not checked this file yet.Open this file on ModrinthNot on CurseForgeDownload · Stable · 428.0 KB
    1.21.4·Fabric1.14.1-fabric.1.21.41.14.1-fabric.1.21.4 · OptimumFuse 1.14.1+fabric.1.21.4.mrpack (main file)·10 Mar 2025Not checkedWe have not checked this file yet.Open this file on ModrinthNot on CurseForgeDownload · Stable · 427.4 KB
    1.21.4·Fabric1.14.0-fabric.1.21.41.14.0-fabric.1.21.4 · OptimumFuse 1.14.0+fabric.1.21.4.mrpack (main file)·1 Mar 2025Not checkedWe have not checked this file yet.Open this file on ModrinthNot on CurseForgeDownload · Stable · 414.4 KB
    1.21.4·Fabric1.14.0-beta.13-fabric.1.21.41.14.0-beta.13-fabric.1.21.4 · OptimumFuse 1.14.0-beta.13+fabric.1.21.4.mrpack (main file)Beta·13 Feb 2025Not checkedWe have not checked this file yet.Open this file on ModrinthNot on CurseForgeDownload · Beta · 410.4 KB
    1.21.4·Fabric1.14.0-beta.12-fabric.1.21.41.14.0-beta.12-fabric.1.21.4 · OptimumFuse 1.14.0-beta.12+fabric.1.21.4.mrpack (main file)Beta·10 Feb 2025Not checkedWe have not checked this file yet.Open this file on ModrinthNot on CurseForgeDownload · Beta · 463.0 KB
    1.21.4·Fabric1.14.0-beta.11-fabric.1.21.41.14.0-beta.11-fabric.1.21.4 · OptimumFuse 1.14.0-beta.11+fabric.1.21.4.mrpack (main file)Beta·4 Feb 2025Not checkedWe have not checked this file yet.Open this file on ModrinthNot on CurseForgeDownload · Beta · 457.8 KB
    1.21.4·Fabric1.14.0-beta.10-fabric.1.21.41.14.0-beta.10-fabric.1.21.4 · OptimumFuse 1.14.0-beta.10+fabric.1.21.4.mrpack (main file)Beta·30 Jan 2025Not checkedWe have not checked this file yet.Open this file on ModrinthNot on CurseForgeDownload · Beta · 314.6 KB
    1.21.4·Fabric1.14.0-beta.9-fabric.1.21.41.14.0-beta.9-fabric.1.21.4 · OptimumFuse 1.14.0-beta.9+fabric.1.21.4.mrpack (main file)Beta·24 Jan 2025Not checkedWe have not checked this file yet.Open this file on ModrinthNot on CurseForgeDownload · Beta · 516.9 KB
    1.21.4·Fabric1.14.0-beta.8-fabric.1.21.41.14.0-beta.8-fabric.1.21.4 · OptimumFuse 1.14.0-beta.8+fabric.1.21.4.mrpack (main file)Beta·18 Jan 2025Not checkedWe have not checked this file yet.Open this file on ModrinthNot on CurseForgeDownload · Beta · 516.5 KB
    1.21.4·Fabric1.14.0-beta.7-fabric.1.21.41.14.0-beta.7-fabric.1.21.4 · OptimumFuse 1.14.0-beta.7+fabric.1.21.4.mrpack (main file)Beta·15 Jan 2025Not checkedWe have not checked this file yet.Open this file on ModrinthNot on CurseForgeDownload · Beta · 516.0 KB
    1.21.4·Fabric1.14.0-beta.6-fabric.1.21.41.14.0-beta.6-fabric.1.21.4 · OptimumFuse 1.14.0-beta.6+fabric.1.21.4.mrpack (main file)Beta·12 Jan 2025Not checkedWe have not checked this file yet.Open this file on ModrinthNot on CurseForgeDownload · Beta · 632.2 KB
    1.21.3·Fabric1.14.0-beta.5-fabric.1.21.31.14.0-beta.5-fabric.1.21.3 · OptimumFuse 1.14.0-beta.5+fabric.1.21.3.mrpack (main file)Beta·28 Dec 2024Not checkedWe have not checked this file yet.Open this file on ModrinthNot on CurseForgeDownload · Beta · 821.0 KB
    1 to 20 of 17912345…9