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    2,054,849 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 2026.269,417 projects gradedProjects with a letter from A to F. Counted on 25 Oct 2026.
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    © 2026 ModgradeNot an official Minecraft product. Not approved by or associated with Mojang or Microsoft.

    Chrysalis

    Mod

    A library mod that gives developers tools to make mods.

    D56/ 100
    • OverviewD
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityUp to 1.21.4
    • ModpacksIn 38
    • ReleasesLatest May 2025

    Download

    chrysalis-0.5.7.jar

    Released 24 May 2025 · 1.9 MB

    Passed: our checks found nothing harmful in this file.

    Download
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade D

    How grades work

    Strengths

    • Security checks passed
    • Public source code and issue tracker

    Points lost

    • No release in 17 months−20 points
    • Many modpacks removed it−6 points
    • Releases in only 2 of the last 24 months−4 points
    • Under 5 million downloads−1 point
    All 11 criteria

    • Maintenance

      16 points lost11 / 27
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.17 months ago (24 May 2025) 0 / 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.1.21.4 on NeoForge, 1.21.1 on Fabric. 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 2 of the last 24 months 2 / 6

    • Stability

      6 points lost16 / 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.8 of the 30 modpacks with two or more versions removed it in a later one (27%) See the 8 modpacks4 / 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

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

    • Popularity

      1 point lost3 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.38,410 3 / 4

    • Track record

      8 points lost0 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.2.0 years, 6 releases 0 / 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
    Total56 / 100

    39.6 of the 71 points that apply = 56 out of 100. The points above are rounded to whole numbers.

    About

    Chrysalis is a NeoForge library mod that helps developers build Minecraft mods with reusable utilities, templates, and configurable, data-driven features. Its tag system makes many vanilla mechanics easier to extend through data, including which items Piglins barter for or can pacify them, which blocks can form Nether portals, and which materials repair Iron Golems or support Chorus Plants. The library also provides helpers and templates for registering common content such as tools, armor, potions, music discs, spawn eggs, buttons, pressure plates, logs, and custom particles, along with models for blocks such as buttons, walls, and biome-tinted petals. Additional systems include structure-specific music, mob bucketing, camera shake, weighted splash text, custom emissive textures, and more flexible mob-griefing rules. Developers can also use admin-only testing items for tasks such as restoring health or hunger, clearing effects, teleporting to a spawnpoint, and instantly defeating mobs, as well as commands to check the library version or reload its data registries.

    Written from Modrinth . How we write it

    In-game changes

    Changes the game's code in 11 areas, as a library other mods build on: Mobs and their behaviorChanges 27 game code files in this area: mobs, animals, villagers, projectiles and how they move and act., Inventory and itemsChanges 25 game code files in this area: items, chests and other containers, crafting and enchanting., Blocks and fluidsChanges 25 game code files in this area: how blocks, fluids and redstone work., Rendering and graphicsChanges 8 game code files in this area: drawing mobs, items, particles and textures on screen., User interfaceChanges 8 game code files in this area: menus, screens, tooltips, the chat window and the in-game overlay., Server and world logicChanges 7 game code files in this area: the world, commands, scoreboards, saved data and game rules., PlayerChanges 5 game code files in this area: your character: movement, abilities, hunger and controls., World renderingChanges 2 game code files in this area: drawing the terrain, sky, clouds and weather., Game coreChanges 2 game code files in this area: the main loop, lighting and other code the whole game uses., World generationChanges 1 game code file in this area: terrain, biomes and structures made when new land is created. and SoundChanges 1 game code file in this area: playing sounds, music and the sound engine..

    Adds 1 block, 17 items, 3 entities, 1 loot table, 36 sounds and 1 key binding.

    Counted from the names and data files in the mod, so the list may not be complete.

    Replaces 10 of vanilla Minecraft's item textures, 10 advancements, 9 interface textures, 4 models and 1 core shader.

    Often used with it

    See all 30
    Mod MenuAFerriteCoreALithiumAYUNG's Better Nether FortressesAEnd RebornB

    Details

    Creators
    sydneybeanmc and Soumeh
    License
    Chrysalis License
    Downloads
    38K
    Created
    29 Apr 2023
    Official pages
    Modrinth , CurseForge
    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. Only in its files for NeoForge 1.21.4.

    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 18 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 so far that AI was used to make it

    We looked for AI tools in its texts, files, images and sounds 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 · 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.
      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
      5 of 8 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
      182 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
      40 of 51 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
      311 code files read

    Compatibility

    See all 6 files
    Fabric
    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.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.Its newest file is for 1.21.4. 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 Chrysalis to work.

    ProjectTypeDownloadsGrade
    [ARCHIVED] Endgame Reborn-Mod17K downloads[ARCHIVED] End Reborn Additions-Mod7.5K downloadsInterfaced (Discontinued)-Mod1.4K downloads

    Modpacks using this project

    Find modpacks with it

    38 modpacks include Chrysalis in at least one of their versions. Here are the 30 most downloaded.

    ModpackDownloadsLast version with it
    Legacies52K downloadslast version with it 24 Mar 2025create mod+13K downloadslast version with it 16 Mar 2024VisionSteps5.9K downloadslast version with it 3 Mar 2024Trailer Reimagined5.2K downloadslast version with it 22 Jul 2024Rede Moby FPS+ Turbo Boost Utilits4.1K downloadslast version with it 8 Oct 2024AlbMC3.8K downloadslast version with it 12 May 2024[DISCONTINUED] Subjectively Correct2.6K downloadslast version with it 2 Apr 2024Roguelike Conquest2.4K downloadslast version with it 19 Dec 2024Minecraft 2: Beyond Blocks2.3K downloadslast version with it 17 Nov 2024Not-So-Vanilla1.7K downloadslast version with it 1 Dec 2024
    1 to 10 of 30123

    Often in the same modpacks

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

    ProjectTypeShareGrade
    Mod MenuAModin 100% of the modpacks with ChrysalisFerriteCoreAModin 95% of the modpacks with ChrysalisLithiumAModin 95% of the modpacks with ChrysalisYUNG's Better Nether FortressesAModin 74% of the modpacks with ChrysalisEnd RebornBModin 71% of the modpacks with ChrysalisMemory Leak Fix-Modin 71% of the modpacks with ChrysalisSodium ExtraAModin 71% of the modpacks with ChrysalisBetterF3AModin 68% of the modpacks with ChrysalisYUNG's Better Desert TemplesAModin 68% of the modpacks with ChrysalisYUNG's Better Ocean MonumentsAModin 68% of the modpacks with Chrysalis
    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
    1.21.4·NeoForge0.5.70.5.7 · chrysalis-0.5.7.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.4·NeoForge0.5.30.5.3 · chrysalis-0.5.3.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.1·Fabric0.5.00.5.0 · chrysalis-0.5.0.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.

    6 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.21.4The latest file for its Minecraft version and loader·NeoForge0.5.70.5.7 · chrysalis-0.5.7.jar (main file)·24 May 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthNot on CurseForgeDownload · Stable · 1.9 MB
    1.21.4·NeoForge0.5.60.5.6 · chrysalis-0.5.6.jar (main file)·12 May 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthNot on CurseForgeDownload · Stable · 1.8 MB
    1.21.4·NeoForge0.5.50.5.5 · chrysalis-0.5.5.jar (main file)·25 Apr 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthNot on CurseForgeDownload · Stable · 1.8 MB
    1.21.4·NeoForge0.5.40.5.4 · chrysalis-0.5.4.jar (main file)·17 Apr 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthNot on CurseForgeDownload · Stable · 1.8 MB
    1.21.4The latest file for its Minecraft version and loader·NeoForge0.5.30.5.3 · chrysalis-0.5.3.jar (main file)·10 Apr 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 1.8 MB
    1.21.1The latest file for its Minecraft version and loader·Fabric0.5.00.5.0 · chrysalis-0.5.0.jar (first file)·13 Oct 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 941.7 KB