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    2,054,198 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 2026.269,438 projects gradedProjects with a letter from A to F. Counted on 25 Oct 2026.
    How it worksMalware we foundAPIAboutPrivacyTermsContact

    © 2026 ModgradeNot an official Minecraft product. Not approved by or associated with Mojang or Microsoft.

    Deltabox Lib

    Mod

    A library other mods need in order to work.

    B81/ 100
    • OverviewB
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityUp to 1.21.2
    • ModpacksIn 1,153
    • ReleasesLatest 13 Feb

    Download

    deltaboxlib-fabric-3.0.1+1.21.1.jar

    Released 13 Feb 2026 · 892.8 KB

    Passed: our checks found nothing harmful in this file.

    Download

    Required to run

    • Fabric Language KotlinAMinecraft 1.21.2 · Fabric (release kotlin.2.4.21)
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade B

    How grades work

    Strengths

    • Security checks passed
    • Stable releases
    • Widely used

    Points lost

    • No source code link−7 points
    • No release in 8 months−5 points
    • Releases in only 6 of the last 24 months−1 point
    All 11 criteria
    • Maintenance

      4 points lost23 / 27
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.8 months ago (13 Feb 2026). 363 modpacks released in the last 6 months still include it, so it keeps 76% of these points. 9 / 12
      Supports popular versionsWhether the project has a file for a Minecraft version that 15% or more of the popular mods updated in the last 6 months also support. A version many modpacks use, like 1.20.1 or 1.21.1, also counts after a release in the last 12 months.1.21.2 on Fabric, 1.20.1 on Forge. 53% of the 718 popular Fabric mods updated in the last 6 months also have files for 1.21.1. Latest Minecraft: 26.3. 9 / 9
      Regular releasesIn how many of the last 24 months a new file came out. Full points at 8 months.Releases in 6 of the last 24 months 5 / 6
    • Stability

      Full points22 / 22
      Removed from modpacksHow many modpacks removed it in a later version of the pack. We can only see this in modpacks with two or more versions. A pack that swaps it for another edition of the same project, or that is rebuilt from scratch, does not count.31 of the 359 modpacks with two or more versions removed it in a later one (9%) 10 / 10
      Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.No quick fix in 2 years 7 / 7
      Known conflictsHow many projects say they do not work with it, compared with how widely it is used. Packs, small projects, forks, ports, add-ons, alternatives and old versions do not count.None 5 / 5
    • Transparency

      7 points lost3 / 10
      Source codeWhether the project page links to its source code, so anyone can read what it does.No link on the project page 0 / 7
      Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.GitHub issues · danbrown/deltaboxissues 3 / 3
    • Popularity

      Full points4 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.8,991,995 4 / 4
    • Track record

      2 points lost6 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.2.1 years, 14 releases 6 / 8
    • Security

      Passed
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in all 3 latest files for recent Minecraft versions. See Security
    Total81 / 100

    57.7 of the 71 points that apply = 81 out of 100. The points above are rounded to whole numbers.

    Images

    • It's a Delta!

    About

    Deltabox Lib is a Kotlin library that provides reusable code for Deltabox mods, including easier registration of blocks, items, creative tabs, fluids, villager and wandering trader trades, and tree sets. It also offers reusable block-type presets, recipe and loot-table data-generation helpers, FastNoise-based noise generators, custom armor renderers, and helpers for creating world-generation features. It is a required dependency for Brazilian Delight, Music Box, and Pale Garden Backport, as well as two projects whose names have not been disclosed.

    Written from Modrinth . How we write it

    In-game changes

    Changes the game's code in 6 areas, as a library other mods build on: Chunk loading and storageChanges 2 game code files in this area: how the game loads, tracks, saves and unloads chunks., Inventory and itemsChanges 1 game code file in this area: items, chests and other containers, crafting and enchanting., Blocks and fluidsChanges 1 game code file in this area: how blocks, fluids and redstone work., Game data and resourcesChanges 1 game code file in this area: recipes, tags, advancements, language files and other game data., Server and world logicChanges 1 game code file in this area: the world, commands, scoreboards, saved data and game rules. and Rendering and graphicsChanges 1 game code file in this area: drawing mobs, items, particles and textures on screen..

    Keeps all of vanilla Minecraft's textures, models and sounds.

    Often used with it

    See all 29
    AmendmentsASodium Dynamic LightsCYUNG's Better Nether FortressesAYUNG's Better Ocean MonumentsAWhat Are They Up To (Watut)B

    Details

    Creator
    danbrown
    License
    MIT License
    Downloads
    9M
    Created
    31 Aug 2024
    Official pages
    Modrinth , CurseForge
    Links
    Issues , Wiki , Discord

    Security

    No harmful code found

    We checked its files and read their code, without running it.

    Why we show this: a mod runs on your computer like any program, so harmful code in it can take your accounts or files. Our checks look for known signs of harm. They cannot prove that a file is harmless. In the grade: malware means no grade, and a Warning in a latest file for a recent Minecraft version lowers it.

    How we checked · All 3 latest files checked, last on 15 Oct 2026
    • FilesWe download the files from Modrinth or CurseForge and look at what is inside them and what their code can do, without running them. Fixed rules tell what is harmful.
      3 latest files: the newest file for each Minecraft version and loader. All 3 are for recent versions. Recent versions: those released in the last 2 years, plus 1.20.1 and 1.21.1, among the most played in modpacks. See each file in Releases
    • Their codeWe turn the code of the files back into readable code and follow what it does, without running it. This shows what it downloads, what it sends and where your login goes.
      Read without running it
    • 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.
    • Looked for, not foundWe looked for these in the file and did not find them.
      The internet, folders outside the game, other programs, updating itself, the webcam or microphone, an AI service.

    Privacy

    We found nothing it sends

    We read its code without running it: it contacts no web address while you play.

    Why we show this: 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 · All 3 files read
    • Files readWe read the code without running it. We list each web address the code contacts while you play, and what it sends. Code that is never used is left out.
      The code of all 3 files, for recent Minecraft versions. See each file in Releases
    • Author on ModrinthThe disclosure form on Modrinth, where the author declares crash reports, usage data and advertisements. Since 13 Aug 2026, Modrinth's rules require it when a project collects data on its users or shows advertisements.
      Nothing declared about crash reports, usage data or advertisements.

    AI

    No sign that AI was used to make it

    We looked for AI tools in its texts, files, images and code history and found none.

    No sign of AI in the game

    We found no AI service, AI library or AI model file in its code.

    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 · 6 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 or AI features declared.
    • Code historyThe public code on GitHub: who made each change, credit lines such as "Co-authored-by", and its files.
      Nothing found
    • 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
      26 of 32 changelogs read
    • Its filesFiles that AI coding tools leave behind (like AGENTS.md), and the texts inside the files you download.
      Nothing found
    • Images in its filesHidden data in the images of the files you download, where AI image tools write their name and settings.
      Nothing found
      3 images read
    • Code of the modThe code and files of the mod, read without running it: addresses of AI services, AI libraries, AI model files and a place for your own AI key.
      No AI service, AI library or AI model file
      339 code files read

    Compatibility

    See all 14 files
    Fabric
    Forge
    1.201.2126.126.3

    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.Needed in your game and on the server, or you cannot join.
    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.
    Fabric Language Kotlinon FabricAArchitectury APIin some filesAKotlin for Forgeon ForgeA
    OptionalProjects it can work with but does not need. The author lists them.Nothing
    IncludesProjects packed inside its files.Nothing
    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 1.21.2. It has no file for the 6 newer Minecraft versions. It also supports 1.21.1, a version many recently updated mods still support.

    Related projects

    Projects that need Deltabox Lib to work.

    ProjectTypeDownloadsGrade
    Pale Garden Backport: The Garden AwakensBMod4.8M downloadsBrazilian DelightAMod1.5M downloadsMusic Box-Mod218K downloads

    Modpacks using this project

    Find modpacks with it
    Modpacks that released a new version with this project, each month
    2001000
    Oct 2024: 3 modpacksNov 2024: 14 modpacksDec 2024: 25 modpacksJan 2025: 31 modpacksFeb 2025: 48 modpacksMar 2025: 59 modpacksApr 2025: 86 modpacksMay 2025: 94 modpacksJun 2025: 86 modpacksJul 2025: 95 modpacksAug 2025: 108 modpacksSep 2025: 86 modpacksOct 2025: 123 modpacksNov 2025: 123 modpacksDec 2025: 148 modpacksJan 2026: 140 modpacksFeb 2026: 141 modpacksMar 2026: 127 modpacksApr 2026: 132 modpacksMay 2026: 123 modpacksJun 2026: 114 modpacksJul 2026: 116 modpacksAug 2026: 104 modpacksSep 2026: 88 modpacks
    Oct 2024Oct 2025Sep 2026
    Modpacks that released a new version with this project, each month
    Oct 20243
    Nov 202414
    Dec 202425
    Jan 202531
    Feb 202548
    Mar 202559
    Apr 202586
    May 202594
    Jun 202586
    Jul 202595
    Aug 2025108
    Sep 202586
    Oct 2025123
    Nov 2025123
    Dec 2025148
    Jan 2026140
    Feb 2026141
    Mar 2026127
    Apr 2026132
    May 2026123
    Jun 2026114
    Jul 2026116
    Aug 2026104
    Sep 202688

    1,153 modpacks include Deltabox Lib in at least one of their versions. Here are the 30 most downloaded.

    ModpackDownloadsLast version with it
    Homestead3.6M downloadslast version with it 23 Oct 2026Beyond Depth3.4M downloadslast version with it 18 Oct 2026Beyond Ascension645K downloadslast version with it 18 Oct 2026Age of Fate564K downloadslast version with it 19 Oct 2026Beyond Cosmo525K downloadslast version with it 18 Oct 2026Sensible MC179K downloadslast version with it 22 Jul 2026Reimagined151K downloadslast version with it 22 Jul 2025Beyond Ocean137K downloadslast version with it 15 Oct 2026Infinity Legends (Palladium)111K downloadslast version with it 23 Oct 2026Origins SMP111K downloadslast version with it 19 Sep 2026
    1 to 10 of 30123

    Often in the same modpacks

    Mods that modpacks often add together with Deltabox Lib. Share: how many of the modpacks with Deltabox Lib also have that mod.

    ProjectTypeShareGrade
    AmendmentsAModin 63% of the modpacks with Deltabox LibSodium Dynamic LightsCModin 52% of the modpacks with Deltabox LibYUNG's Better Nether FortressesAModin 49% of the modpacks with Deltabox LibYUNG's Better Ocean MonumentsAModin 47% of the modpacks with Deltabox LibWhat Are They Up To (Watut)BModin 47% of the modpacks with Deltabox LibBlueprintAModin 46% of the modpacks with Deltabox LibChat HeadsAModin 46% of the modpacks with Deltabox LibsparkAModin 45% of the modpacks with Deltabox LibYUNG's Better End IslandAModin 44% of the modpacks with Deltabox LibYUNG's Better Jungle TemplesAModin 44% of the modpacks with Deltabox Lib
    1 to 10 of 29123

    Latest files

    The newest file for each Minecraft version and loader. The files for recent versions come first. Recent versions: those released in the last 2 years, plus 1.20.1 and 1.21.1, among the most played in modpacks.

    MinecraftLoaderVersionSecuritySendsRequires
    1.21.1 to 1.21.2·Fabric3.0.13.0.1 · deltaboxlib-fabric-3.0.1+1.21.1.jarSends: None foundRequires:Fabric Language KotlinPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.1·Fabric2.2.02.2.0 · deltaboxlib-fabric-2.2.0+1.20.1.jarSends: None foundRequires:Fabric Language Kotlin, Architectury APIFabric Language Kotlin, Architectury APIPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.1·Forge2.2.02.2.0 · deltaboxlib-forge-2.2.0+1.20.1.jarSends: None foundRequires:Kotlin for Forge, Architectury APIKotlin for Forge, Architectury APIPassedOur checks found nothing harmful in this file. Its code was read too.

    14 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.21.1 to 1.21.21.21.1 to 1.21.2The latest file for its Minecraft version and loader·Fabric3.0.13.0.1 · deltaboxlib-fabric-3.0.1+1.21.1.jar (main file)·13 Feb 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 892.8 KB
    1.21.1 to 1.21.21.21.1 to 1.21.2·Fabric3.0.03.0.0 · deltaboxlib-fabric-3.0.0+1.21.1.jar (main file)·29 Jan 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 875.7 KB
    1.20.1The latest file for its Minecraft version and loader·Fabric2.2.02.2.0 · deltaboxlib-fabric-2.2.0+1.20.1.jar (main file)·21 Jun 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 832.2 KB
    1.20.1The latest file for its Minecraft version and loader·Forge2.2.02.2.0 · deltaboxlib-forge-2.2.0+1.20.1.jar (main file)·21 Jun 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 785.7 KB
    1.20.1·Forge2.1.12.1.1 · deltaboxlib-2.1.1-forge-1.20.1.jar (main file)·28 Apr 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 939.0 KB
    1.20.1·Fabric2.1.12.1.1 · deltaboxlib-2.1.1-fabric-1.20.1.jar (main file)·28 Apr 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 993.1 KB
    1.20.1·Fabric2.1.02.1.0 · deltaboxlib-2.1.0-fabric-1.20.1.jar (main file)·17 Apr 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 993.2 KB
    1.20.1·Forge2.1.02.1.0 · deltaboxlib-2.1.0-forge-1.20.1.jar (main file)·17 Apr 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 939.1 KB
    1.20.1·Fabric2.0.02.0.0 · deltaboxlib-1.20.1-fabric-2.0.0.jar (main file)Alpha·5 Apr 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Alpha · 991.5 KB
    1.20.1·Forge1.1.31.1.3 · deltaboxlib-1.1.3.jar (main file)Beta·23 Jan 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 705.1 KB
    1.20.1·Forge1.1.21.1.2 · deltaboxlib-1.1.2.jar (main file)Beta·31 Oct 2024PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 687.0 KB
    1.20.1·Forge1.1.11.1.1 · deltaboxlib-1.1.1.jar (main file)Beta·25 Oct 2024PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 685.9 KB
    1.20.1·Forge1.1.01.1.0 · deltaboxlib-1.1.0.jar (main file)Beta·18 Sep 2024PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 613.6 KB
    1.20.1·Forge1.0.01.0.0 · deltaboxlib-1.0.0.jar (main file)Beta·31 Aug 2024PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 529.5 KB