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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.

    CooParticlesAPI

    Mod

    A library to spawn custom particles.

    C79/ 100
    • OverviewC
    • SecurityPartly checked
    • PrivacyGoes online
    • AINone found
    • CompatibilityMinecraft 1.21.1
    • ModpacksIn 9
    • ReleasesLatest 14 Aug

    Download

    CooParticlesAPI-Fabric-1.21.1-2.5.5.3.jar

    Released 14 Aug 2026 · 8.0 MB

    Passed: our checks found nothing harmful in this file.

    Download
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade C

    How grades work

    Strengths

    • Regular releases for Minecraft 1.21.1, a version many recently updated mods still support
    • Around for years

    Points lost

    • Many modpacks removed it−10 points
    • No public issue tracker−3 points
    • Releases replaced within 3 days to fix a problem−1 point
    • Under 5 million downloads−1 point
    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.2 months ago (14 Aug 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.1.21.1 on Fabric and 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 8 of the last 24 months 6 / 6

    • Stability

      11 points lost11 / 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.5 of the 7 modpacks with two or more versions removed it in a later one (71%) See the 5 modpacks0 / 10
      Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.3 of its 21 releases in 2 years needed a quick fix (14%) See the 3 releases6 / 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

      3 points lost7 / 10
      Source codeWhether the project page links to its source code, so anyone can read what it does.GitHub · CooStack/CooParticlesAPI 7 / 7
      Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.No link to report problems 0 / 3

    • Popularity

      1 point lost3 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.64,649 3 / 4

    • Track record

      Full points8 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.17 months, 28 releases 8 / 8

    • Security

      Partly checked
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in the parts we could check. 2 latest files for recent Minecraft versions cannot be checked (1.21.1 Fabric and 1.21.1 NeoForge): its author does not let other sites download them from CurseForge. See Security
    Total79 / 100

    55.9 of the 71 points that apply = 79 out of 100. The points above are rounded to whole numbers.

    Images

    • Eg

    About

    CooParticlesAPI is a particle and rendering framework for mod developers, bringing together tools for creating and coordinating custom effects. It includes three particle systems: ControlableParticle, a CPU-based system adapted from Minecraft’s particle engine; CParticle, a GPU-based system using the vanilla TextureSheet approach; and CooFx, a Blender-oriented system that supports Blender particle logic. Developers can build particle compositions and emitters, use a listener-style event system, and render custom models through RenderEntity and Pipeline, including post-processing effects. The framework also provides a Blender bridge for model and camera animation, along with DisplayEntity and terrain-mapping tools. Its custom data packages let clients synchronize particle rendering while supporting counts beyond Minecraft’s standard limit of 16,384 particles and reducing network issues from sending large numbers of packets. Most custom shading is designed to work with Iris shader processing.

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

    In-game changes

    Changes the game's code in 10 areas, as a library other mods build on: Rendering and graphicsChanges 5 game code files in this area: drawing mobs, items, particles and textures on screen., World renderingChanges 4 game code files in this area: drawing the terrain, sky, clouds and weather., Game optionsChanges 3 game code files in this area: settings, key bindings and the option screens., PlayerChanges 2 game code files in this area: your character: movement, abilities, hunger and controls., User interfaceChanges 1 game code file in this area: menus, screens, tooltips, the chat window and the in-game overlay., SoundChanges 1 game code file in this area: playing sounds, music and the sound engine., Inventory and itemsChanges 1 game code file in this area: items, chests and other containers, crafting and enchanting., Mobs and their behaviorChanges 1 game code file in this area: mobs, animals, villagers, projectiles and how they move and act., Game coreChanges 1 game code file in this area: the main loop, lighting and other code the whole game uses. and Server and world logicChanges 1 game code file in this area: the world, commands, scoreboards, saved data and game rules..

    Adds 1 block, 6 items and 4 sounds.

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

    Replaces 1 of vanilla Minecraft's core shaders.

    Details

    Creator
    CooStack
    License
    All rights reserved
    Downloads
    65K
    Created
    19 May 2025
    Official pages
    Modrinth , CurseForge
    Links
    Source code

    Security

    No harmful code found in the parts we could check

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

    2 of its files for recent versions cannot be checked: its author does not let other sites download them from CurseForge.

    What it can do on your computer

    Uses folders outside the game
    It can read or write files outside your Minecraft folder, on the rest of your computer. Found: your user folder.
    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. No web address is written in full 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 · 2 of 4 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.
      4 latest files: the newest file for each Minecraft version and loader. All 4 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. 2 of them are not checked yet. 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.
      Other programs, updating itself, the webcam or microphone, an AI service.

    Privacy

    We found nothing it sends about you, in the 2 of its 4 files we read

    We read its code without running it: it contacts 1 web address while you play.

    Like any connection, each address it contacts sees your IP address.

    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 · 2 of 4 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 2 of 4 files, for recent Minecraft versions. See each file in Releases
    • Address built while the game runsThe code builds this address while the game runs: it is not written in the file.
      Purpose not known.
    • 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
      20 of 29 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
      20 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
      2,158 code files read

    Compatibility

    See all 28 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.
    Kotlin for Forgeon NeoForgeA
    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 CooParticlesAPI to work.

    ProjectTypeDownloadsGrade
    UsefulMagicCMod79K downloads

    Modpacks using this project

    Find modpacks with it

    Modpacks that include CooParticlesAPI in at least one of their versions, most downloaded first.

    ModpackDownloadsLast version with it
    Tensura Tomfoolery8.7K downloadslast version with it 12 May 2026Vanilla Bloom1.2K downloadslast version with it 22 Apr 2026Power Engineering792 downloadslast version with it 19 Dec 2025All The Wizards786 downloadslast version with it 5 Jun 2026Eternal Journey261 downloadslast version with it 21 Dec 2025Cobblemon: WeBallin142 downloadslast version with it 11 Sep 2025Aetherbound - Skies of Arcana64 downloadslast version with it 30 Jun 2026T-REr61 downloadslast version with it 27 Feb 2026CapitalismoPack18 downloadslast version with it 25 Sep 2025

    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
    1.21.1·Fabric2.5.5.32.5.5.3 · CooParticlesAPI-Fabric-1.21.1-2.5.5.3.jarSends: Nothing about youRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.1·Fabric2.0.02.0.0 · CooParticlesAPI-Fabric-1.21.1-2.0.0.jarSends: Not read yetRequires:NothingNot checkedWe have not checked this file yet.
    1.21.1·NeoForge2.5.5.32.5.5.3 · CooParticlesAPI-NeoForge-1.21.1-2.5.5.3.jarSends: None foundRequires:Kotlin for ForgePassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.1·NeoForge2.0.02.0.0 · CooParticlesAPI-NeoForge-1.21.1-2.0.0.jarSends: Not read yetRequires:Kotlin for ForgeNot checkedWe have not checked this file yet.

    28 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.21.1The latest file for its Minecraft version and loader·Fabric2.5.5.32.5.5.3 · CooParticlesAPI-Fabric-1.21.1-2.5.5.3.jar (main file)·14 Aug 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthNot on CurseForgeDownload · Stable · 8.0 MB
    1.21.1The latest file for its Minecraft version and loader·NeoForge2.5.5.32.5.5.3 · CooParticlesAPI-NeoForge-1.21.1-2.5.5.3.jar (main file)·14 Aug 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthNot on CurseForgeDownload · Stable · 7.9 MB
    1.21.1·NeoForge2.4.3.42.4.3.4 · CooParticlesAPI-NeoForge-1.21.1-2.4.3.4.jar (main file)·21 Jun 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthNot on CurseForgeDownload · Stable · 5.5 MB
    1.21.1·Fabric2.4.3.42.4.3.4 · CooParticlesAPI-Fabric-1.21.1-2.4.3.4.jar (main file)·21 Jun 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthNot on CurseForgeDownload · Stable · 5.6 MB
    1.21.1·NeoForge2.4.3.32.4.3.3 · CooParticlesAPI-NeoForge-1.21.1-2.4.3.3.jar (main file)·19 Jun 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthNot on CurseForgeDownload · Stable · 5.4 MB
    1.21.1·Fabric2.4.3.32.4.3.3 · CooParticlesAPI-Fabric-1.21.1-2.4.3.3.jar (main file)·19 Jun 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthNot on CurseForgeDownload · Stable · 5.6 MB
    1.21.1·NeoForge2.4.32.4.3 · CooParticlesAPI-NeoForge-1.21.1-2.4.3.jar (main file)·15 Jun 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthNot on CurseForgeDownload · Stable · 5.4 MB
    1.21.1·Fabric2.4.32.4.3 · CooParticlesAPI-Fabric-1.21.1-2.4.3.jar (main file)·15 Jun 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthNot on CurseForgeDownload · Stable · 5.6 MB
    1.21.1·Fabric2.2.4.22.2.4.2 · CooParticlesAPI-Fabric-1.21.1-2.2.4.2.jar (main file)·22 Dec 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthNot on CurseForgeDownload · Stable · 1.8 MB
    1.21.1·NeoForge2.2.4.22.2.4.2 · CooParticlesAPI-NeoForge-1.21.1-2.2.4.2.jar (main file)·22 Dec 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthNot on CurseForgeDownload · Stable · 1.7 MB
    1.21.1·NeoForge2.2.42.2.4 · CooParticlesAPI-NeoForge-1.21.1-2.2.4.jar (main file)·20 Dec 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthNot on CurseForgeDownload · Stable · 1.7 MB
    1.21.1·Fabric2.2.42.2.4 · CooParticlesAPI-Fabric-1.21.1-2.2.4.jar (main file)·20 Dec 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthNot on CurseForgeDownload · Stable · 1.8 MB
    1.21.1·Fabric2.1.12.1.1 · CooParticlesAPI-Fabric-1.21.1-2.1.1.jar (main file)·20 Sep 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthNot on CurseForgeDownload · Stable · 1.2 MB
    1.21.1·NeoForge2.1.12.1.1 · CooParticlesAPI-NeoForge-1.21.1-2.1.1.jar (main file)·20 Sep 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthNot on CurseForgeDownload · Stable · 1.2 MB
    1.21.1·NeoForge2.0.22.0.2 · CooParticlesAPI-NeoForge-1.21.1-2.0.2.jar (main file)·4 Sep 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthNot on CurseForgeDownload · Stable · 1.2 MB
    1.21.1·Fabric2.0.22.0.2 · CooParticlesAPI-Fabric-1.21.1-2.0.2.jar (main file)·4 Sep 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthNot on CurseForgeDownload · Stable · 1.2 MB
    1.21.1·Fabric2.0.12.0.1 · CooParticlesAPI-Fabric-1.21.1-2.0.1.jar (main file)·3 Sep 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthNot on CurseForgeDownload · Stable · 1.2 MB
    1.21.1·NeoForge2.0.12.0.1 · CooParticlesAPI-NeoForge-1.21.1-2.0.1.jar (main file)·3 Sep 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthNot on CurseForgeDownload · Stable · 1.2 MB
    1.21.1The latest file for its Minecraft version and loader·Fabric2.0.02.0.0 · CooParticlesAPI-Fabric-1.21.1-2.0.0.jar (main file)·18 Aug 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForge. CurseForge file not checked: its author does not let other sites download it from CurseForge.Download · Stable · 1.1 MB
    1.21.1The latest file for its Minecraft version and loader·NeoForge2.0.02.0.0 · CooParticlesAPI-NeoForge-1.21.1-2.0.0.jar (main file)·18 Aug 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForge. CurseForge file not checked: its author does not let other sites download it from CurseForge.Download · Stable · 1.1 MB
    1 to 20 of 2812

    Quick fixes

    In the last 2 years, 3 releases needed a quick fix: a new release within 3 days to fix a problem. This lowers the grade by 1 point.

    See them, newest first

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

    • 2.0.24 Sep 2025fix replay mod can not render custom renderer
    • 1.10.115 Jun 2025Fix server bug
    • 1.9.326 May 2025fixes Fixed unintended roll angle accumulation when rotating…