Skip to content
BrowseScan your modsScan

    No project matches this search.

    2,046,932 files checkedFiles from Modrinth and CurseForge we downloaded and checked. Counted on 24 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 24 Oct 2026.269,480 projects gradedProjects with a letter from A to F. Counted on 24 Oct 2026.
    How it worksMalware we foundAPIAboutPrivacyTermsContact

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

    JamLib

    Mod

    A shared library used by JamCoreModding's other mods.

    A97/ 100
    • OverviewA
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityUp to 26.3
    • ModpacksIn 13,147
    • ReleasesLatest 18 Sep

    Download

    jamlib-fabric-2.3.1+26.3.x.jar

    Released 18 Sep 2026 · 258.8 KB

    Passed: our checks found nothing harmful in this file.

    Download

    Required to run

    • Fabric APIAMinecraft 26.3 · Fabric (release 0.165.0)
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade A

    How grades work

    Strengths

    • Regular releases for the newest Minecraft versions
    • Public source code and issue tracker
    • Widely used
    • Around for years

    Points lost

    • Releases replaced within 3 days to fix a problem−2 points
    All 11 criteria

    • Maintenance

      Full points27 / 27
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.5 weeks ago (18 Sep 2026) 12 / 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.26.3 (latest) on NeoForge and Fabric, 26.2 on Quilt, 1.20.4 on Forge 9 / 9
      Regular releasesIn how many of the last 24 months a new file came out. Full points at 8 months.Releases in 14 of the last 24 months 6 / 6

    • Stability

      2 points lost20 / 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.32 of the 374 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.4 of its 22 releases in 2 years needed a quick fix (18%) See the 4 releases5 / 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

      Full points10 / 10
      Source codeWhether the project page links to its source code, so anyone can read what it does.GitHub · JamCoreModding/jam-lib 7 / 7
      Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.GitHub issues · JamCoreModding/jam-lib 3 / 3

    • Popularity

      Full points4 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.78,182,435 4 / 4

    • Track record

      Full points8 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.4.4 years, 176 releases 8 / 8

    • Security

      Passed
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in all 20 latest files for recent Minecraft versions. See Security
    Total97 / 100

    69.1 of the 71 points that apply = 97 out of 100. The points above are rounded to whole numbers.

    About

    JamLib is a platform-agnostic library used by JamCoreModding’s mods, providing abstractions for working across platforms. It also offers event and networking utilities, a JSON5 configuration API, and a checker for identifying reposted mods.

    Written from Modrinth and the GitHub README . How we write it

    In-game changes

    Changes the game's code in 5 areas, as a library other mods build on: PlayerChanges 3 game code files in this area: your character: movement, abilities, hunger and controls., Server and world logicChanges 3 game code files in this area: the world, commands, scoreboards, saved data and game rules., Game optionsChanges 2 game code files in this area: settings, key bindings and the option screens., User interfaceChanges 2 game code files in this area: menus, screens, tooltips, the chat window and the in-game overlay. and Networking and multiplayerChanges 2 game code files in this area: connections, the server list and what is sent between your game and a server..

    Adds no new blocks, items or other content.

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

    Often used with it

    See all 29
    Chat HeadsALithiumAAmendmentsAComplementary Shaders - UnboundAsparkA

    Details

    Creator
    Jam Core
    License
    MIT License
    Downloads
    78.5M
    Created
    15 May 2022
    Official pages
    Modrinth , CurseForge
    Links
    Source code , Issues , Discord

    Security

    No harmful code found

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

    What it can do on your computer

    Connects to the internet
    It has code that can go online, for example to check for updates, load skins or send crash reports. No web address is written in its code. See Privacy

    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 38 latest files checked, last on 16 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.
      38 latest files: the newest file for each Minecraft version and loader. The answer above is about the 20 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.
      Folders outside the game, other programs, updating itself, the webcam or microphone, an AI service.
    • Modrinth and CurseForgeA release with a different file on Modrinth and on CurseForge, whose code is not the same. Each file is checked on its own. Nothing is blocked.
      Minecraft 1.20.1 · Forge · release 1.3.5 · 14 Apr 2025: Modrinth jamlib-forge-1.3.5+1.20.1.jar, CurseForge jamlib-forge-1.3.5+1.20.1.jar. 1 class changed, 1 class only in the CurseForge file, in io.github.jamalam360.jamlib: JamLibPlatform$Platform, JamLibPlatform$1 (CurseForge only).
      code differs in 1 release

    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 20 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 20 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
      40 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
      8 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
      162 code files read

    Compatibility

    See all 176 files
    Fabric
    NeoForge
    Forge
    Quilt
    1.181.201.2126.1

    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.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 APIon FabricAArchitectury APIin some filesA
    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.Faster than most mods. On average, it gets a file 15 days after a new Minecraft version comes out. Measured on the last 6 Minecraft versions.

    Related projects

    Projects that need JamLib to work.

    ProjectTypeDownloadsGrade
    RightClickHarvestAMod76M downloadsShut Up GL ErrorBMod3.7M downloadsUtility BeltBMod1.2M downloadsReapingBMod523K downloadsSort It Out!AMod385K downloadsQuicker Connect ButtonDMod34K downloadsYou May Rest NowDMod19K downloadsTotally Balanced Bone DropsDMod12K downloadsConfigurable Boss BarsDMod9.9K downloadsWake Up TimeDMod8.9K downloads
    1 to 10 of 1412

    Modpacks using this project

    Find modpacks with it
    Modpacks that released a new version with this project, each month
    2K1K0
    Oct 2024: 321 modpacksNov 2024: 310 modpacksDec 2024: 309 modpacksJan 2025: 372 modpacksFeb 2025: 368 modpacksMar 2025: 569 modpacksApr 2025: 761 modpacksMay 2025: 849 modpacksJun 2025: 795 modpacksJul 2025: 803 modpacksAug 2025: 901 modpacksSep 2025: 839 modpacksOct 2025: 914 modpacksNov 2025: 1,084 modpacksDec 2025: 1,147 modpacksJan 2026: 1,247 modpacksFeb 2026: 1,107 modpacksMar 2026: 1,077 modpacksApr 2026: 1,113 modpacksMay 2026: 1,269 modpacksJun 2026: 1,212 modpacksJul 2026: 1,363 modpacksAug 2026: 1,338 modpacksSep 2026: 1,307 modpacks
    Oct 2024Oct 2025Sep 2026
    Modpacks that released a new version with this project, each month
    Oct 2024321
    Nov 2024310
    Dec 2024309
    Jan 2025372
    Feb 2025368
    Mar 2025569
    Apr 2025761
    May 2025849
    Jun 2025795
    Jul 2025803
    Aug 2025901
    Sep 2025839
    Oct 2025914
    Nov 20251,084
    Dec 20251,147
    Jan 20261,247
    Feb 20261,107
    Mar 20261,077
    Apr 20261,113
    May 20261,269
    Jun 20261,212
    Jul 20261,363
    Aug 20261,338
    Sep 20261,307

    More modpacks put it in their new versions than a year ago: 1,267 a month now, 825 a year agoThe average of the last 6 months, compared with the same 6 months a year before. We say it only when the change is large..

    13,147 modpacks include JamLib in at least one of their versions. Here are the 30 most downloaded.

    ModpackDownloadsLast version with it
    All the Mods 10 - ATM1022.5M downloadslast version with it 20 May 2025Prominence™ II: Hasturian Era15.4M downloadslast version with it 23 Oct 2026Cursed Walking - A Modern Zombie Apocalypse8.7M downloadslast version with it 8 Aug 2026Better MC [FABRIC] BMC17.9M downloadslast version with it 20 Nov 2023Better MC [FABRIC] - BMC25.9M downloadslast version with it 15 Jul 2026Immersed With Shaders4.5M downloadslast version with it 8 Sep 2024Medieval MC [FABRIC] MMC14.4M downloadslast version with it 21 Nov 2023DarkRPG - RPG with Magic, Origins, Quests, Adventure3.9M downloadslast version with it 24 Oct 2026Homestead3.6M downloadslast version with it 23 Oct 2026Beyond Depth3.4M downloadslast version with it 18 Oct 2026
    1 to 10 of 30123

    Often in the same modpacks

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

    ProjectTypeShareGrade
    Chat HeadsAModin 49% of the modpacks with JamLibLithiumAModin 46% of the modpacks with JamLibAmendmentsAModin 45% of the modpacks with JamLibComplementary Shaders - UnboundAShaderin 45% of the modpacks with JamLibsparkAModin 43% of the modpacks with JamLibHandcraftedCModin 40% of the modpacks with JamLibTowns and TowersBModin 39% of the modpacks with JamLibChippedCModin 39% of the modpacks with JamLibWhat Are They Up To (Watut)BModin 39% of the modpacks with JamLibReese's Sodium OptionsAModin 39% of the modpacks with JamLib
    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
    26.3·Fabric2.3.1-26.3.x2.3.1-26.3.x · jamlib-fabric-2.3.1+26.3.x.jarSends: None foundRequires:Fabric APIPassedOur checks found nothing harmful in this file. Its code was read too.
    26.3·NeoForge2.3.1-26.3.x2.3.1-26.3.x · jamlib-neoforge-2.3.1+26.3.x.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    26.2·Fabric, Quilt2.3.1-26.2.x2.3.1-26.2.x · jamlib-fabric-2.3.1+26.2.x.jarSends: None foundRequires:Fabric APIPassedOur checks found nothing harmful in this file. Its code was read too.
    26.2·NeoForge2.3.1-26.2.x2.3.1-26.2.x · jamlib-neoforge-2.3.1+26.2.x.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    26.1 to 26.1.2·Fabric, Quilt2.3.1-26.1.x2.3.1-26.1.x · jamlib-fabric-2.3.1+26.1.x.jarSends: None foundRequires:Fabric APIPassedOur checks found nothing harmful in this file. Its code was read too.
    26.1 to 26.1.2·NeoForge2.3.1-26.1.x2.3.1-26.1.x · jamlib-neoforge-2.3.1+26.1.x.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.11·Fabric, Quilt2.0.02.0.0 · jamlib-fabric-2.0.0+1.21.11.jarSends: None foundRequires:Fabric APIPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.11·NeoForge2.0.02.0.0 · jamlib-neoforge-2.0.0+1.21.11.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.9 to 1.21.10·Fabric, Quilt1.3.61.3.6 · jamlib-fabric-1.3.6+1.21.10.jarSends: None foundRequires:Fabric API, Architectury APIFabric API, Architectury APIPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.9 to 1.21.10·NeoForge1.3.61.3.6 · jamlib-neoforge-1.3.6+1.21.10.jarSends: None foundRequires:Architectury APIPassedOur checks found nothing harmful in this file. Its code was read too.
    1 to 10 of 381234

    176 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    26.3The latest file for its Minecraft version and loader·NeoForge2.3.1-26.3.x2.3.1-26.3.x · jamlib-neoforge-2.3.1+26.3.x.jar (main file)·18 Sep 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 263.7 KB
    26.3The latest file for its Minecraft version and loader·Fabric2.3.1-26.3.x2.3.1-26.3.x · jamlib-fabric-2.3.1+26.3.x.jar (main file)·18 Sep 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 258.8 KB
    26.1 to 26.1.226.1 to 26.1.2The latest file for its Minecraft version and loader·NeoForge2.3.1-26.1.x2.3.1-26.1.x · jamlib-neoforge-2.3.1+26.1.x.jar (main file)·17 Jun 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 263.5 KB
    26.1 to 26.1.226.1 to 26.1.2The latest file for its Minecraft version and loader·Fabric, Quilt2.3.1-26.1.x2.3.1-26.1.x · jamlib-fabric-2.3.1+26.1.x.jar (main file)·17 Jun 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 258.7 KB
    26.2The latest file for its Minecraft version and loader·NeoForge2.3.1-26.2.x2.3.1-26.2.x · jamlib-neoforge-2.3.1+26.2.x.jar (main file)·17 Jun 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 263.7 KB
    26.2The latest file for its Minecraft version and loader·Fabric, Quilt2.3.1-26.2.x2.3.1-26.2.x · jamlib-fabric-2.3.1+26.2.x.jar (main file)·17 Jun 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 258.9 KB
    26.2·NeoForge2.3.0-26.2.x2.3.0-26.2.x · jamlib-neoforge-2.3.0+26.2.x.jar (main file)·16 Jun 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 263.5 KB
    26.2·Fabric, Quilt2.3.0-26.2.x2.3.0-26.2.x · jamlib-fabric-2.3.0+26.2.x.jar (main file)·16 Jun 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 258.7 KB
    26.1 to 26.1.226.1 to 26.1.2·NeoForge2.3.0-26.1.x2.3.0-26.1.x · jamlib-neoforge-2.3.0+26.1.x.jar (main file)·10 Jun 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 263.3 KB
    26.1 to 26.1.226.1 to 26.1.2·Fabric, Quilt2.3.0-26.1.x2.3.0-26.1.x · jamlib-fabric-2.3.0+26.1.x.jar (main file)·10 Jun 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 258.6 KB
    26.1 to 26.1.226.1 to 26.1.2·NeoForge2.2.0-26.1.x2.2.0-26.1.x · jamlib-neoforge-2.2.0+26.1.x.jar (main file)·28 May 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 258.2 KB
    26.1 to 26.1.226.1 to 26.1.2·Fabric, Quilt2.2.0-26.1.x2.2.0-26.1.x · jamlib-fabric-2.2.0+26.1.x.jar (main file)·28 May 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 252.7 KB
    1.20.1The latest file for its Minecraft version and loader·Forge1.3.6-patch.11.3.6-patch.1 · jamlib-forge-1.3.6+1.20.1-patch.1.jar (main file)·27 May 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 187.1 KB
    1.20.1The latest file for its Minecraft version and loader·Fabric, Quilt1.3.6-patch.11.3.6-patch.1 · jamlib-fabric-1.3.6+1.20.1-patch.1.jar (main file)·27 May 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 235.0 KB
    26.1 to 26.1.226.1 to 26.1.2·NeoForge2.1.1-26.1.x2.1.1-26.1.x · jamlib-neoforge-2.1.1+26.1.x.jar (main file)·27 May 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 243.3 KB
    26.1 to 26.1.226.1 to 26.1.2·Fabric, Quilt2.1.1-26.1.x2.1.1-26.1.x · jamlib-fabric-2.1.1+26.1.x.jar (main file)·27 May 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 237.8 KB
    26.1 to 26.1.226.1 to 26.1.2·NeoForge2.1.0-26.1.x2.1.0-26.1.x · jamlib-neoforge-2.1.0+26.1.x.jar (main file)·25 May 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 243.5 KB
    26.1 to 26.1.226.1 to 26.1.2·Fabric, Quilt2.1.0-26.1.x2.1.0-26.1.x · jamlib-fabric-2.1.0+26.1.x.jar (main file)·25 May 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 237.8 KB
    26.1 to 26.1.226.1 to 26.1.2·NeoForge2.0.0-26.1.x2.0.0-26.1.x · jamlib-neoforge-2.0.0+26.1.x.jar (main file)·4 May 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 206.3 KB
    26.1 to 26.1.226.1 to 26.1.2·Fabric, Quilt2.0.0-26.1.x2.0.0-26.1.x · jamlib-fabric-2.0.0+26.1.x.jar (main file)·4 May 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 209.5 KB
    1 to 20 of 17612345…9

    Quick fixes

    In the last 2 years, 4 releases needed a quick fix: a new release within 3 days to fix a problem. This lowers the grade by 2 points.

    See them, newest first

    Quick fixesReleases followed within 3 days by a new release that fixes a problem in them.4

    • 2.3.1+26.2.x17 Jun 2026Fix network capability crash when connecting to a modded…
    • 2.1.1+26.1.x27 May 2026Fix resource reloading on Neoforge (#37)
    • 1.3.2+1.20.1-patch.119 Mar 2025Fix config crash.
    • 1.3.2+1.21.426 Feb 2025Fix crash on dedicated servers.