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    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.

    Atlas Lib

    Mod

    A library for shared code between minecraft mods.

    A94/ 100
    • OverviewA
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityUp to 1.21.1
    • ModpacksIn 4,227
    • ReleasesLatest 6 Jun

    Download

    Atlas-Lib-1.21.0-1.1.14.jar

    Released 20 Jun 2024 · 91.0 KB

    Passed: our checks found nothing harmful in this file.

    Download
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade A

    How grades work

    Strengths

    • Stable releases
    • Public source code and issue tracker
    • Widely used

    Points lost

    • No release in 5 months−3 points
    • Releases in only 7 of the last 24 months−1 point
    All 11 criteria

    • Maintenance

      3 points lost24 / 27
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.5 months ago (6 Jun 2026) 10 / 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.1.21.1 on NeoForge, 1.20.1 on Forge. 15% or more of the popular 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 7 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.28 of the 323 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.1 of its 9 releases in 2 years needed a quick fix (11%) 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

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

    • Popularity

      Full points4 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.35,763,974 4 / 4

    • Track record

      1 point lost7 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.5.6 years, 48 releases 7 / 8

    • Security

      Passed
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in both latest files for recent Minecraft versions. See Security
    Total94 / 100

    66.7 of the 71 points that apply = 94 out of 100. The points above are rounded to whole numbers.

    About

    Atlas Lib is a shared-code library for other Minecraft mods, including serialization and math utilities. For dependent mods, it provides tools for registering groups of items and blocks, rendering models, handling entity and block positioning, reading JSON from datapacks and values from NBT, and networking. It has no standalone gameplay features; mods that use it include Cosmetic Wood, Follow Me, The Hordes, Piper, and DC Classes.

    Written from Modrinth and CurseForge . How we write it

    In-game changes

    Does not change the game's code directly.

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

    Often used with it

    See all 29
    Serene SeasonsAZombie AwarenessCSecurityCraftAThe Lost CitiesAAI Improvements: Performance TuningA

    Details

    Creator
    Smileycorp
    License
    GNU Lesser General Public License v2.1 only
    Downloads
    35.8M
    Created
    1 Apr 2021
    Official pages
    Modrinth , CurseForge
    Links
    Source code , Issues

    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 address written in the code is contacted by the code that runs. 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 11 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.
      11 latest files: the newest file for each Minecraft version and loader. The answer above is about the 2 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.

    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 · Both 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 both 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, sounds 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 · 7 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
      21 of 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
      2 images read
    • Sounds in its filesThe tags of the sound files in the files you download, where some AI music tools write their name.
      Nothing found
      4 sounds 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
      52 code files read

    Compatibility

    See all 48 files
    NeoForge
    Forge
    1.121.151.171.2026.1

    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.Nothing
    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.It has no file for Minecraft versions newer than 1.21.1. Many recently updated mods still support 1.21.1.

    Related projects

    Projects that need Atlas Lib to work.

    ProjectTypeDownloadsGrade
    The HordesBMod23.5M downloadsFollow MeDMod8.1M downloadsBlood SmelteryAMod1.3M downloadsDeeper DepthsAMod38K downloadsZVIAMEMod3.5K downloadsDoctor Wandering StrangeCResource pack15 downloads

    Modpacks using this project

    Find modpacks with it
    Modpacks that released a new version with this project, each month
    3001500
    Oct 2024: 199 modpacksNov 2024: 185 modpacksDec 2024: 214 modpacksJan 2025: 190 modpacksFeb 2025: 207 modpacksMar 2025: 174 modpacksApr 2025: 197 modpacksMay 2025: 237 modpacksJun 2025: 203 modpacksJul 2025: 197 modpacksAug 2025: 202 modpacksSep 2025: 201 modpacksOct 2025: 182 modpacksNov 2025: 193 modpacksDec 2025: 206 modpacksJan 2026: 218 modpacksFeb 2026: 176 modpacksMar 2026: 207 modpacksApr 2026: 200 modpacksMay 2026: 251 modpacksJun 2026: 232 modpacksJul 2026: 266 modpacksAug 2026: 250 modpacksSep 2026: 220 modpacks
    Oct 2024Oct 2025Sep 2026
    Modpacks that released a new version with this project, each month
    Oct 2024199
    Nov 2024185
    Dec 2024214
    Jan 2025190
    Feb 2025207
    Mar 2025174
    Apr 2025197
    May 2025237
    Jun 2025203
    Jul 2025197
    Aug 2025202
    Sep 2025201
    Oct 2025182
    Nov 2025193
    Dec 2025206
    Jan 2026218
    Feb 2026176
    Mar 2026207
    Apr 2026200
    May 2026251
    Jun 2026232
    Jul 2026266
    Aug 2026250
    Sep 2026220

    4,227 modpacks include Atlas Lib in at least one of their versions. Here are the 30 most downloaded.

    ModpackDownloadsLast version with it
    DawnCraft - Echoes of Legends10.5M downloadslast version with it 20 Nov 2025DeceasedCraft - Urban Zombie Apocalypse9.8M downloadslast version with it 17 Jul 2026Cursed Walking - A Modern Zombie Apocalypse8.7M downloadslast version with it 8 Aug 2026Fear Nightfall: Remains of Chaos2.9M downloadslast version with it 13 Sep 2025Mineshafts & Monsters2.1M downloadslast version with it 9 Nov 2022Endless Horror - The ULTIMATE Horror Experience1.5M downloadslast version with it 10 Sep 2026Last Days of Humanity1.4M downloadslast version with it 29 May 2024Rebirth of the Night (RotN)1.3M downloadslast version with it 2 Feb 2026VerityCraft - A Realistic Horror Experience with Verity1.1M downloadslast version with it 22 Oct 2026Soulrend - Dark Fantasy RPG Soulslike1.1M downloadslast version with it 21 Oct 2026
    1 to 10 of 30123

    Often in the same modpacks

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

    ProjectTypeShareGrade
    Serene SeasonsAModin 49% of the modpacks with Atlas LibZombie AwarenessCModin 49% of the modpacks with Atlas LibSecurityCraftAModin 45% of the modpacks with Atlas LibThe Lost CitiesAModin 42% of the modpacks with Atlas LibAI Improvements: Performance TuningAModin 40% of the modpacks with Atlas LibEnhancedVisualsAModin 39% of the modpacks with Atlas LibEnhanced CelestialsBModin 39% of the modpacks with Atlas LibGuard VillagersAModin 37% of the modpacks with Atlas LibAttributeFixAModin 37% of the modpacks with Atlas LibTissou's Zombie PackCResource packin 35% of the modpacks with Atlas 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 to 1.21.1·NeoForge1.1.141.1.14 · Atlas-Lib-1.21.0-1.1.14.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20 to 1.20.1·NeoForge, Forge1.1.121.1.12 · Atlas Lib-1.20.1-1.1.12.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    Older Minecraft versions
    1.19.4·Forge1.1.81.1.8 · Atlas-Lib-1.19.4-1.1.8.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.19.3·Forge1.1.6a1.1.6a · Atlas-Lib-1.19.3-1.1.6a.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.19.2·Forge1.1.61.1.6 · Atlas-Lib-1.19.2-1.1.6.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.19·Forge1.1.41.1.4 · Atlas-Lib-1.19-1.1.4.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.18.2·Forge1.1.81.1.8 · Atlas-Lib-1.18.2-1.1.8.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.18·Forge1.1.31.1.3 · Atlas-Lib-1.18-1.1.3.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.17.1·Forge1.1.31.1.3 · Atlas-Lib-1.17.1-1.1.3.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.16.5·Forge1.1.3c1.1.3c · Atlas-Lib-1.16.5-1.1.3c.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1 to 10 of 1112

    48 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.12.2The latest file for its Minecraft version and loader·Forge1.1.111.1.11 · Atlas-Lib-1.12.2-1.1.11.jar (main file)·6 Jun 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 1.3 MB
    1.12.2·Forge1.1.101.1.10 · Atlas-Lib-1.12.2-1.1.10.jar (main file)·30 Mar 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 1.3 MB
    1.12.2·Forge1.1.91.1.9 · Atlas-Lib-1.12.2-1.1.9.jar·9 Sep 2025PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 1.2 MB
    1.12.2·Forge1.1.8a1.1.8a · Atlas-Lib-1.12.2-1.1.8a.jar·22 Aug 2025PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 1.2 MB
    1.12.2·Forge1.1.81.1.8 · Atlas-Lib-1.12.2-1.1.8.jar·30 Jul 2025PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 1.2 MB
    1.12.2·Forge1.1.7a1.1.7a · Atlas-Lib-1.12.2-1.1.7a.jar·23 Jul 2025PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 1.2 MB
    1.12.2·Forge1.1.71.1.7 · Atlas-Lib-1.12.2-1.1.7.jar·23 Jul 2025PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 1.2 MB
    1.12.2·Forge1.1.61.1.6 · Atlas-Lib-1.12.2-1.1.6.jar·5 Nov 2024PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 148.0 KB
    1.21 to 1.21.11.21 to 1.21.1The latest file for its Minecraft version and loader·NeoForge1.1.141.1.14 · Atlas-Lib-1.21.0-1.1.14.jar (main file)·20 Jun 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 91.0 KB
    1.21·NeoForge1.21.0-1.1.131.21.0-1.1.13 · Atlas-Lib-1.21.0-1.1.13.jar·19 Jun 2024PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 87.4 KB
    1.20 to 1.20.11.20 to 1.20.1The latest file for its Minecraft version and loader·Forge, NeoForge1.1.121.1.12 · Atlas Lib-1.20.1-1.1.12.jar (main file)·11 Apr 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 121.5 KB
    1.20 to 1.20.11.20 to 1.20.1·Forge, NeoForge1.1.11a1.1.11a · Atlas+Lib-1.20.1-1.1.11a.jar (main file)·16 Jul 2023PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 113.2 KB
    1.20.1·Forge1.1.111.1.11 · Atlas Lib-1.20.1-1.1.11.jar·16 Jul 2023PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 113.1 KB
    1.20 to 1.20.11.20 to 1.20.1·Forge1.1.10b1.1.10b · Atlas Lib-1.20.1-1.1.10b.jar·26 Jun 2023PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 112.9 KB
    1.20 to 1.20.11.20 to 1.20.1·Forge1.1.10a1.1.10a · Atlas Lib-1.20.1-1.1.10a.jar·26 Jun 2023PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 112.7 KB
    1.20 to 1.20.11.20 to 1.20.1·Forge1.1.101.1.10 · Atlas Lib-1.20.1-1.1.10.jar·26 Jun 2023PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 112.8 KB
    1.20 to 1.20.11.20 to 1.20.1·Forge1.1.9a1.1.9a · Atlas Lib-1.20.1-1.1.9a.jar·18 Jun 2023PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 112.6 KB
    1.20 to 1.20.11.20 to 1.20.1·Forge1.1.91.1.9 · Atlas Lib-1.20-1.1.9.jar·10 Jun 2023PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 111.5 KB
    1.19.4The latest file for its Minecraft version and loader·Forge1.1.81.1.8 · Atlas-Lib-1.19.4-1.1.8.jar (main file)·10 Jun 2023PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 107.7 KB
    1.18.2The latest file for its Minecraft version and loader·Forge1.1.81.1.8 · Atlas-Lib-1.18.2-1.1.8.jar (main file)·4 Jun 2023PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 112.9 KB
    1 to 20 of 48123

    Quick fixes

    In the last 2 years, 1 release needed a quick fix: a new release within 3 days to fix a problem. This counts in the grade, but it is too few to lose points.

    See them, newest first

    Quick fixesReleases followed within 3 days by a new release that fixes a problem in them.1

    • Atlas-Lib-1.12.2-1.1.7a.jar23 Jul 2025~ Fixed crash when booting up when raids backport isn't installed…