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

    Ars Polymorphia

    Mod

    Choose between different crafting results from your storage lectern.

    C79/ 100
    • OverviewC
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityUp to 1.21.1
    • ModpacksIn 662
    • ReleasesLatest Feb 2025

    Download

    ars_polymorphia-1.0.3.jar

    Released 22 Feb 2025 · 19.7 KB

    Passed: our checks found nothing harmful in this file.

    Download

    Required to run

    • Ars NouveauAMinecraft 1.21.1 · NeoForge (release 5.13.3)
    • PolymorphAMinecraft 1.21.1 · NeoForge (release 1.1.0)
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade C

    How grades work

    Strengths

    • Security checks passed
    • Stable releases
    • Public source code and issue tracker
    • Widely used

    Points lost

    • No release in 20 months−8 points
    • Releases in only 1 of the last 24 months−5 points

    C at most after 12 months without a release.

    All 11 criteria
    • Maintenance

      10 points lost17 / 27
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.20 months ago (22 Feb 2025). 367 modpacks released in the last 6 months still include it, so it keeps 60% of these points. The grade cannot go above C after 12 months without a release. 7 / 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. 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 1 of the last 24 months 1 / 6
    • Stability

      Full points15 / 15
      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.18 of the 375 modpacks with two or more versions removed it in a later one (5%) 10 / 10
      Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.Not measured yet.
      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 · Vonr/Ars-Polymorphia 7 / 7
      Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.GitHub issues · Vonr/Ars-Polymorphia 3 / 3
    • Popularity

      Full points4 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.7,803,981 4 / 4
    • Track record

      3 points lost5 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.20 months, 4 releases 5 / 8
    • Security

      Passed
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in the latest file for recent Minecraft versions. See Security
    Total79 / 100

    50.8 of the 64 points that apply = 79 out of 100. The points above are rounded to whole numbers.

    About

    Ars Polymorphia adds Polymorph support to Ars Nouveau’s Storage Lecterns, allowing you to craft items from the lectern terminal when the same ingredients match multiple recipes. A button above the output slot opens a list of possible results; choosing one changes the output, and the selection is remembered while the ingredients remain unchanged, making repeated crafting possible.

    Written from Modrinth . How we write it

    In-game changes

    Does not change the game's code directly.

    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
    Ars NouveauASophisticated StorageAArs ElementalAArs AdditionsBCreate: Enchantment IndustryA

    Details

    Creator
    Qther
    License
    GNU Lesser General Public License v3.0 only
    Downloads
    7.8M
    Created
    10 Feb 2025
    Official pages
    Modrinth , CurseForge
    Links
    Source code , Issues

    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 · The latest file 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.
      1 latest file, for a recent version. 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 · Its one file 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 its one file, 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
      7 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
      11 code files read

    Compatibility

    See all 4 files
    NeoForge
    1.2126.126.2

    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.
    Ars NouveauAPolymorphA
    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.

    Modpacks using this project

    Find modpacks with it
    Modpacks that released a new version with this project, each month
    2001000
    Oct 2024: 0 modpacksNov 2024: 0 modpacksDec 2024: 0 modpacksJan 2025: 0 modpacksFeb 2025: 4 modpacksMar 2025: 22 modpacksApr 2025: 32 modpacksMay 2025: 30 modpacksJun 2025: 36 modpacksJul 2025: 42 modpacksAug 2025: 56 modpacksSep 2025: 45 modpacksOct 2025: 51 modpacksNov 2025: 61 modpacksDec 2025: 68 modpacksJan 2026: 67 modpacksFeb 2026: 68 modpacksMar 2026: 73 modpacksApr 2026: 86 modpacksMay 2026: 110 modpacksJun 2026: 98 modpacksJul 2026: 103 modpacksAug 2026: 111 modpacksSep 2026: 99 modpacks
    Oct 2024Oct 2025Sep 2026
    Modpacks that released a new version with this project, each month
    Oct 20240
    Nov 20240
    Dec 20240
    Jan 20250
    Feb 20254
    Mar 202522
    Apr 202532
    May 202530
    Jun 202536
    Jul 202542
    Aug 202556
    Sep 202545
    Oct 202551
    Nov 202561
    Dec 202568
    Jan 202667
    Feb 202668
    Mar 202673
    Apr 202686
    May 2026110
    Jun 202698
    Jul 2026103
    Aug 2026111
    Sep 202699

    More modpacks put it in their new versions than a year ago: 101 a month now, 40 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..

    662 modpacks include Ars Polymorphia 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 15 Oct 2026All the Mons - ATMons2.1M downloadslast version with it 6 Sep 2026MineColonies: Dimensional Adventure1.2M downloadslast version with it 4 Oct 2026TNP Limitless 8 - LL8333K downloadslast version with it 16 Oct 2026[MODIFIED] Cobblemon: PLUS282K downloadslast version with it 25 Oct 2025All the Magic - Arcana201K downloadslast version with it 23 Aug 2026All the Mods 10 Aeronautics200K downloadslast version with it 30 Sep 2026NeoTech Reborn113K downloadslast version with it 18 Oct 2026Beebeeblock - The Skyhive92K downloadslast version with it 16 Oct 2026Mystic's Monstrosity84K downloadslast version with it 27 Jan 2026
    1 to 10 of 30123

    Often in the same modpacks

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

    ProjectTypeShareGrade
    Ars NouveauAModin 100% of the modpacks with Ars PolymorphiaSophisticated StorageAModin 86% of the modpacks with Ars PolymorphiaArs ElementalAModin 83% of the modpacks with Ars PolymorphiaArs AdditionsBModin 79% of the modpacks with Ars PolymorphiaCreate: Enchantment IndustryAModin 73% of the modpacks with Ars PolymorphiaFTB Chunks (NeoForge)AModin 72% of the modpacks with Ars PolymorphiaRelicsAModin 72% of the modpacks with Ars PolymorphiaAmendmentsAModin 71% of the modpacks with Ars PolymorphiaChippedCModin 70% of the modpacks with Ars PolymorphiaApothic-EnchantingAModin 70% of the modpacks with Ars Polymorphia
    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 to 1.21.1·NeoForge1.0.31.0.3 · ars_polymorphia-1.0.3.jarSends: None foundRequires:Ars Nouveau, PolymorphPassedOur checks found nothing harmful in this file. Its code was read too.

    4 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.21 to 1.21.11.21 to 1.21.1The latest file for its Minecraft version and loader·NeoForge1.0.31.0.3 · ars_polymorphia-1.0.3.jar (main file)·22 Feb 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 19.7 KB
    1.21 to 1.21.11.21 to 1.21.1·NeoForge1.0.21.0.2 · ars_polymorphia-1.0.2.jar (main file)·19 Feb 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 19.7 KB
    1.21 to 1.21.11.21 to 1.21.1·NeoForge1.0.11.0.1 · ars_polymorphia-1.0.1.jar (main file)·19 Feb 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 21.4 KB
    1.21 to 1.21.11.21 to 1.21.1·NeoForge1.0.01.0.0 · ars_polymorphia-1.0.0.jar (main file)·10 Feb 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthNot on CurseForgeDownload · Stable · 19.5 KB