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    2,055,424 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 2026.269,392 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.

    Inertia Anti Cheat

    Mod

    Stop people from using unwanted mods on your server.

    D62/ 100
    • OverviewD
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityUp to 1.21.11
    • ModpacksIn 39
    • ReleasesLatest Dec 2025

    Download

    InertiaAntiCheat-1.1.1.2.jar

    Released 11 Dec 2025 · 183.3 KB

    Passed: our checks found nothing harmful in this file.

    Download

    Required to run

    • Fabric APIAMinecraft 1.21.11 · Fabric (release 0.141.6)
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade D

    How grades work

    Strengths

    • Security checks passed
    • Public source code and issue tracker

    Points lost

    • No release in 10 months−16 points
    • Many modpacks removed it−9 points
    • Releases in only 7 of the last 24 months−1 point
    • Under 5 million downloads−1 point
    All 11 criteria

    • Maintenance

      11 points lost16 / 27
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.10 months ago (11 Dec 2025) 2 / 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.1.21.11 on Fabric and Quilt. 29% of the 718 popular Fabric mods updated in the last 6 months also have files for 1.21.11. 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

      9 points lost13 / 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.13 of the 35 modpacks with two or more versions removed it in a later one (37%) See the 13 modpacks1 / 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 13 releases in 2 years needed a quick fix (8%) 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 · DiffuseHyperion/InertiaAntiCheat 7 / 7
      Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.GitHub issues · DiffuseHyperion/InertiaAntiCheat 3 / 3

    • Popularity

      1 point lost3 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.106,547 3 / 4

    • Track record

      6 points lost2 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.3.4 years, 40 releases 2 / 8

    • Security

      Passed
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in all 11 latest files for recent Minecraft versions. See Security
    Total62 / 100

    43.7 of the 71 points that apply = 62 out of 100. The points above are rounded to whole numbers.

    Images

    • Screenshot 1 of Inertia Anti Cheat
    • Screenshot 2 of Inertia Anti Cheat

    About

    Inertia Anti Cheat helps server operators restrict unwanted client mods by checking players’ mod lists when they join and disconnecting players whose lists do not meet the server’s rules. Operators can use a blacklist to block specific mods, such as Wurst or Meteor, a whitelist to require particular mods, or a combined mod-list hash to enforce a server modpack. For modpack checks, optional soft-whitelisting lets players use approved extras, such as Sodium or a zoom or full-brightness mod, without including them in the required pack hash. The mod can also encrypt client mod-list responses in transit, while its documentation notes that this does not prevent clients from falsifying those lists. Checks are configurable to identify mods by their file data, mod ID, or file name, with individual blacklist and whitelist validation or group hash validation. This is a basic deterrent rather than a foolproof anti-cheat system, and it does not check resource packs, so it cannot detect X-ray packs.

    Written from Modrinth . How we write it

    In-game changes

    Changes the game's code in 2 areas: Networking and multiplayerChanges 7 game code files in this area: connections, the server list and what is sent between your game and a server. and User interfaceChanges 3 game code files in this area: menus, screens, tooltips, the chat window and the in-game overlay..

    Adds no new blocks, items or other content.

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

    Often used with it

    See all 30
    LithiumAFerriteCoreAMod MenuASodium ExtraAConcurrent Chunk Management Engine (Fabric)A

    Details

    Creator
    DiffuseHyperion
    License
    GNU General Public License v3.0 only
    Downloads
    107K
    Created
    18 May 2023
    Official page
    Modrinth
    Links
    Source code , Issues , Wiki

    Security

    No harmful code found

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

    What it can do on your computer

    Creates settings files
    The mod keeps its settings in the config folder of your game, where you can change or delete them. 1 file in your config folder.
    Connects to the internet
    It has code that can go online, for example to check for updates, load skins or send crash reports. Found in toml4j, a library it includes. 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 16 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.
      16 latest files: the newest file for each Minecraft version and loader. The answer above is about the 11 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 · All 11 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 11 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 so far that AI was used to make it

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

    We have not read its code history yet.

    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 · 5 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.
      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
      20 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
      7 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
      106 code files read

    Compatibility

    See all 40 files
    Fabric
    Quilt
    1.171.201.2126.1

    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 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.It has no file for Minecraft versions newer than 1.21.11. Many recently updated mods still support 1.21.11.

    Modpacks using this project

    Find modpacks with it

    39 modpacks include Inertia Anti Cheat in at least one of their versions. Here are the 30 most downloaded.

    ModpackDownloadsLast version with it
    Elevated Expeditions13K downloadslast version with it 19 Jun 2023TABSMP Modpack9.4K downloadslast version with it 28 Feb 2025Valley7.4K downloadslast version with it 16 Jul 2025Fabricly Light6.3K downloadslast version with it 5 Jul 2025[UNOFFICIAL] Doc's Apotheosis5.2K downloadslast version with it 19 Jul 2024Cobblemon Earth The Mizuni Region4.3K downloadslast version with it 12 Feb 2024Moon-Titan (ServerPack)3.8K downloadslast version with it 31 Mar 2026Pyonpack2.6K downloadslast version with it 26 Jul 2024Argon2.6K downloadslast version with it 26 Sep 2023Fresh Vanilla2.1K downloadslast version with it 15 Nov 2024
    1 to 10 of 30123

    Often in the same modpacks

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

    ProjectTypeShareGrade
    LithiumAModin 97% of the modpacks with Inertia Anti CheatFerriteCoreAModin 92% of the modpacks with Inertia Anti CheatMod MenuAModin 90% of the modpacks with Inertia Anti CheatSodium ExtraAModin 69% of the modpacks with Inertia Anti CheatConcurrent Chunk Management Engine (Fabric)AModin 67% of the modpacks with Inertia Anti CheatReese's Sodium OptionsAModin 64% of the modpacks with Inertia Anti CheatNo Chat ReportsAModin 62% of the modpacks with Inertia Anti CheatChat HeadsAModin 62% of the modpacks with Inertia Anti CheatZoomify (Zoom)AModin 59% of the modpacks with Inertia Anti CheatDynamic FPSAModin 59% of the modpacks with Inertia Anti Cheat
    1 to 10 of 30123

    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
    1.21.11·Fabric, Quilt1.1.1.21.1.1.2 · InertiaAntiCheat-1.1.1.2.jarSends: None foundRequires:Fabric APIPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.10·Fabric, Quilt1.1.1.11.1.1.1 · InertiaAntiCheat-1.1.1.1.jarSends: None foundRequires:Fabric APIPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.9·Fabric, Quilt1.1.11.1.1 · InertiaAntiCheat-1.1.1.jarSends: None foundRequires:Fabric APIPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.8·Fabric, Quilt1.1.0.41.1.0.4 · InertiaAntiCheat-1.1.0.4.jarSends: None foundRequires:Fabric APIPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.7·Fabric, Quilt1.1.0.31.1.0.3 · InertiaAntiCheat-1.1.0.3.jarSends: None foundRequires:Fabric APIPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.6·Fabric, Quilt1.1.0.21.1.0.2 · InertiaAntiCheat-1.1.0.2.jarSends: None foundRequires:Fabric APIPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.5·Fabric, Quilt1.1.01.1.0 · InertiaAntiCheat-1.1.0.jarSends: None foundRequires:Fabric APIPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.4·Fabric, Quilt1.0.4.21.0.4.2 · InertiaAntiCheat-1.0.4.2.jarSends: None foundRequires:Fabric APIPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.1·Fabric, Quilt1.0.4.21.0.4.2 · InertiaAntiCheat-1.0.4.2-1.21.1.jarSends: None foundRequires:Fabric APIPassedOur checks found nothing harmful in this file. Its code was read too.
    1.17 to 1.20.1·Fabric0.0.7.20.0.7.2 · InertiaAntiCheat-0.0.7.2+1.20.1.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1 to 10 of 1612

    40 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.21.11The latest file for its Minecraft version and loader·Fabric, Quilt1.1.1.21.1.1.2 · InertiaAntiCheat-1.1.1.2.jar (main file)·11 Dec 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Stable · 183.3 KB
    1.21.10The latest file for its Minecraft version and loader·Fabric, Quilt1.1.1.11.1.1.1 · InertiaAntiCheat-1.1.1.1.jar (main file)·17 Oct 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Stable · 183.8 KB
    1.21.9The latest file for its Minecraft version and loader·Fabric, Quilt1.1.11.1.1 · InertiaAntiCheat-1.1.1.jar (main file)·17 Oct 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Stable · 183.8 KB
    1.21.8The latest file for its Minecraft version and loader·Fabric, Quilt1.1.0.41.1.0.4 · InertiaAntiCheat-1.1.0.4.jar (main file)·27 Jul 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Stable · 177.4 KB
    1.21.7The latest file for its Minecraft version and loader·Fabric, Quilt1.1.0.31.1.0.3 · InertiaAntiCheat-1.1.0.3.jar (main file)·2 Jul 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Stable · 177.4 KB
    1.21.6The latest file for its Minecraft version and loader·Fabric, Quilt1.1.0.21.1.0.2 · InertiaAntiCheat-1.1.0.2.jar (main file)·19 Jun 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Stable · 177.4 KB
    1.21.6·Fabric, Quilt1.1.0.11.1.0.1 · InertiaAntiCheat-1.1.0.1.jar (main file)·17 Jun 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthDownload · Stable · 174.7 KB
    1.21.5The latest file for its Minecraft version and loader·Fabric, Quilt1.1.01.1.0 · InertiaAntiCheat-1.1.0.jar (main file)·16 Jun 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Stable · 174.8 KB
    1.21.5·Fabric, Quilt1.1.0-PRE-RELEASE1.1.0-PRE-RELEASE · InertiaAntiCheat-1.1.0-PRE_RELEASE.jar (main file)Beta·13 Jun 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthDownload · Beta · 1.6 MB
    1.21.5·Fabric, Quilt1.0.4.31.0.4.3 · InertiaAntiCheat-1.0.4.3.jar (main file)·9 Jun 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthDownload · Stable · 282.4 KB
    1.21.1The latest file for its Minecraft version and loader·Fabric, Quilt1.0.4.21.0.4.2 · InertiaAntiCheat-1.0.4.2-1.21.1.jar (main file)·26 Feb 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Stable · 282.3 KB
    1.21.4The latest file for its Minecraft version and loader·Fabric, Quilt1.0.4.21.0.4.2 · InertiaAntiCheat-1.0.4.2.jar (main file)·26 Feb 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Stable · 282.4 KB
    1.21.1·Fabric1.0.4.11.0.4.1 · InertiaAntiCheat-1.0.4.1-1.21.1.jar (main file)·7 Feb 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthDownload · Stable · 282.3 KB
    1.21.4·Fabric, Quilt1.0.4.11.0.4.1 · InertiaAntiCheat-1.0.4.1.jar (main file)·9 Dec 2024PassedOur checks found nothing harmful in this file.Open this file on ModrinthDownload · Stable · 282.4 KB
    1.21.3The latest file for its Minecraft version and loader·Fabric, Quilt1.0.41.0.4 · InertiaAntiCheat-1.0.4.jar (main file)·2 Nov 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Stable · 153.4 KB
    1.21.1·Fabric, Quilt1.0.3.11.0.3.1 · InertiaAntiCheat-1.0.3.1.jar (main file)·21 Sep 2024PassedOur checks found nothing harmful in this file.Open this file on ModrinthDownload · Stable · 128.7 KB
    1.21The latest file for its Minecraft version and loader·Fabric, Quilt1.0.31.0.3 · InertiaAntiCheat-1.0.3.jar (main file)·15 Jun 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Stable · 257.6 KB
    1.20.2 to 1.20.61.20.2 to 1.20.6The latest file for its Minecraft version and loader·Fabric0.0.7.20.0.7.2 · InertiaAntiCheat-0.0.7.2+1.20.2.jar (main file)Alpha·6 May 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Alpha · 107.8 KB
    1.17 to 1.20.11.17 to 1.20.1The latest file for its Minecraft version and loader·Fabric0.0.7.20.0.7.2 · InertiaAntiCheat-0.0.7.2+1.20.1.jar (main file)Alpha·6 May 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Alpha · 107.8 KB
    1.20.4The latest file for its Minecraft version and loader·Fabric, Quilt1.0.2.11.0.2.1 · InertiaAntiCheat-1.0.2.1.jar (main file)·7 Apr 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Stable · 260.6 KB
    1 to 20 of 4012

    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

    • 1.1.0.219 Jun 2025Fixed soft-whitelist not working when using ID transfer method…