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

    TslatEffectsLib

    Mod

    A library other mods use to add custom effects.

    C66/ 100
    • OverviewC
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityUp to 1.21.5
    • ModpacksIn 24
    • ReleasesLatest Sep 2025

    Download

    TslatEffectsLib-fabric-1.21.5-1.10.2.jar

    Released 23 Apr 2025 · 271.3 KB

    Passed: our checks found nothing harmful in this file.

    Download

    Required to run

    • Fabric APIAMinecraft 1.21.5 · Fabric (release 0.128.2)
    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 13 months−20 points
    • Releases in only 3 of the last 24 months−4 points
    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.13 months ago (17 Sep 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.1.21.5 on Forge and NeoForge, 1.21.1 on Fabric. 24% of the 516 popular Forge 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 3 of the last 24 months 2 / 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.2 of the 19 modpacks with two or more versions removed it in a later one (11%) 10 / 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 · Tslat/TslatEffectsLib 7 / 7
      Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.GitHub issues · Tslat/TslatEffectsLib 3 / 3

    • Popularity

      Full points4 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.842,350 4 / 4

    • Track record

      8 points lost0 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.4.0 years, 127 releases 0 / 8

    • Security

      Passed
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in all 13 latest files for recent Minecraft versions. See Security
    Total66 / 100

    46.7 of the 71 points that apply = 66 out of 100. The points above are rounded to whole numbers.

    About

    TslatEffectsLib is a developer library that extends Minecraft’s MobEffect system, making it easier for mods to create more flexible and dynamic effects. It adds callbacks for effect application, reapplication, removal, ticking, and incoming or outgoing attacks, along with checks for whether an effect can apply or conflicts with another effect. Developers can also customize effect names and tick behavior per instance, add client-side tick and screen-overlay rendering callbacks, and use helper classes to build effects and potions. The library also offers extended enchantment functionality and a particle deployment system for modifying particles dynamically from the client or server, plus an expanded command for generating particles.

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

    In-game changes

    Changes the game's code in 7 areas, as a library other mods build on: Inventory and itemsChanges 5 game code files in this area: items, chests and other containers, crafting and enchanting., Mobs and their behaviorChanges 2 game code files in this area: mobs, animals, villagers, projectiles and how they move and act., Rendering and graphicsChanges 1 game code file in this area: drawing mobs, items, particles and textures on screen., User interfaceChanges 1 game code file in this area: menus, screens, tooltips, the chat window and the in-game overlay., PlayerChanges 1 game code file in this area: your character: movement, abilities, hunger and controls., Game data and resourcesChanges 1 game code file in this area: recipes, tags, advancements, language files and other game data. and Server and world logicChanges 1 game code file in this area: the world, commands, scoreboards, saved data and game rules..

    A library packed inside it changes 1 more game code file: Cardinal Components API (items).

    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
    AllTheLeaks (Memory Leak Fix)ANot Enough Recipe Book [NERB]APacket FixerAWhat Are They Up To (Watut)BCrash AssistantA

    Details

    Creator
    Tslat
    License
    MIT License
    Downloads
    842K
    Created
    10 Nov 2022
    Official pages
    Modrinth , CurseForge
    Links
    Source code , Issues , Discord

    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 · All 32 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.
      32 latest files: the newest file for each Minecraft version and loader. The answer above is about the 13 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 13 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 13 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 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
      24 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
      1 image 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
      79 code files read

    Compatibility

    See all 127 files
    Fabric
    NeoForge
    Forge
    1.191.201.2126.1

    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.Its newest file is for 1.21.5. 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 TslatEffectsLib to work.

    ProjectTypeDownloadsGrade
    R.E.P.O. Love PotionDMod1.6K downloads

    Modpacks using this project

    Find modpacks with it

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

    ModpackDownloadsLast version with it
    Cursed Walking - A Modern Zombie Apocalypse8.7M downloadslast version with it 8 Aug 2026BETTER FANTASY - Overture203K downloadslast version with it 11 Oct 2026Cursed Walking - Lite Edition112K downloadslast version with it 18 Oct 2026Cursed Walking - Nightmare!19K downloadslast version with it 11 Sep 2026The Last AWAKENED2.2K downloadslast version with it 11 Oct 2026Freaky Pack - Cute vs Horror1.4K downloadslast version with it 27 Sep 2026Dreamy Hollow - A Wonderful Cozy Experience 1.1K downloadslast version with it 22 Oct 2026RuneCraft(RPG)1.1K downloadslast version with it 22 Aug 2025TILAPIA STORY971 downloadslast version with it 29 Mar 2026Epoch of the Banished Gods836 downloadslast version with it 10 Oct 2026
    1 to 10 of 24123

    Often in the same modpacks

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

    ProjectTypeShareGrade
    AllTheLeaks (Memory Leak Fix)AModin 67% of the modpacks with TslatEffectsLibNot Enough Recipe Book [NERB]AModin 63% of the modpacks with TslatEffectsLibPacket FixerAModin 63% of the modpacks with TslatEffectsLibWhat Are They Up To (Watut)BModin 63% of the modpacks with TslatEffectsLibCrash AssistantAModin 58% of the modpacks with TslatEffectsLibMmmMmmMmmMmmAModin 54% of the modpacks with TslatEffectsLibMutant MonstersAModin 50% of the modpacks with TslatEffectsLib[TaCZ] Timeless and Classics ZeroAModin 50% of the modpacks with TslatEffectsLibLet Me DespawnAModin 50% of the modpacks with TslatEffectsLibBadOptimizationsAModin 50% of the modpacks with TslatEffectsLib
    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
    1.21.5·Fabric1.10.21.10.2 · TslatEffectsLib-fabric-1.21.5-1.10.2.jarSends: None foundRequires:Fabric APIPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.5·NeoForge1.10.21.10.2 · TslatEffectsLib-neoforge-1.21.5-1.10.2.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.5·Forge1.10.21.10.2 · TslatEffectsLib-forge-1.21.5-1.10.2.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21 to 1.21.1·Fabric1.9.21.9.2 · TslatEffectsLib-fabric-1.21-1.9.2.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.1·Fabric1.9.11.9.1 · TslatEffectsLib-fabric-1.21-1.9.1.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21 to 1.21.1·NeoForge1.9.21.9.2 · TslatEffectsLib-neoforge-1.21-1.9.2.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.1·NeoForge1.9.11.9.1 · TslatEffectsLib-neoforge-1.21-1.9.1.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21 to 1.21.1·Forge1.9.21.9.2 · TslatEffectsLib-forge-1.21-1.9.2-slim.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.1·Forge1.9.1-slim1.9.1-slim · TslatEffectsLib-forge-1.21-1.9.1-slim.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.1·Fabric1.8.71.8.7 · TslatEffectsLib-fabric-1.20.1-1.8.7.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1 to 10 of 321234

    127 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.20.1The latest file for its Minecraft version and loader·Forge1.8.71.8.7 · TslatEffectsLib-forge-1.20.1-1.8.7.jar (main file)·17 Sep 2025PassedOur checks found nothing harmful in this file. Its code was read too. Same code on Modrinth and CurseForge.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 293.8 KB
    1.20.1The latest file for its Minecraft version and loader·Fabric1.8.71.8.7 · TslatEffectsLib-fabric-1.20.1-1.8.7-dev.jar (main file)·17 Sep 2025Not checkedOne of the two files is not checked yet. Modrinth file: Not checked. CurseForge file: Passed.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 310.4 KB
    1.21.5The latest file for its Minecraft version and loader·NeoForge1.10.21.10.2 · TslatEffectsLib-neoforge-1.21.5-1.10.2.jar (main file)·23 Apr 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 268.9 KB
    1.21.5The latest file for its Minecraft version and loader·Forge1.10.21.10.2 · TslatEffectsLib-forge-1.21.5-1.10.2.jar (main file)·23 Apr 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 446.9 KB
    1.21.5The latest file for its Minecraft version and loader·Fabric1.10.21.10.2 · TslatEffectsLib-fabric-1.21.5-1.10.2.jar (main file)·23 Apr 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthNot on CurseForgeDownload · Stable · 271.3 KB
    1.21.3The latest file for its Minecraft version and loader·NeoForge1.10.21.10.2 · TslatEffectsLib-neoforge-1.21.3-1.10.2.jar (main file)·16 Nov 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 269.0 KB
    1.21.3The latest file for its Minecraft version and loader·Forge1.10.21.10.2 · TslatEffectsLib-forge-1.21.3-1.10.2.jar (main file)·16 Nov 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 423.5 KB
    1.21.3The latest file for its Minecraft version and loader·Fabric1.10.21.10.2 · TslatEffectsLib-fabric-1.21.3-1.10.2.jar (main file)·16 Nov 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthNot on CurseForgeDownload · Stable · 271.4 KB
    1.21.3·NeoForge1.10.11.10.1 · TslatEffectsLib-neoforge-1.21.3-1.10.1.jar (main file)·7 Nov 2024PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 267.7 KB
    1.21 to 1.21.11.21 to 1.21.1The latest file for its Minecraft version and loader·NeoForge1.9.21.9.2 · TslatEffectsLib-neoforge-1.21-1.9.2.jar (main file)·7 Nov 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 270.2 KB
    1.21 to 1.21.11.21 to 1.21.1The latest file for its Minecraft version and loader·Forge1.9.21.9.2 · TslatEffectsLib-forge-1.21-1.9.2-slim.jar (main file)·7 Nov 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 269.0 KB
    1.21 to 1.21.11.21 to 1.21.1The latest file for its Minecraft version and loader·Fabric1.9.21.9.2 · TslatEffectsLib-fabric-1.21-1.9.2.jar (main file)·7 Nov 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 272.1 KB
    1.21.3·NeoForge1.101.10 · TslatEffectsLib-neoforge-1.21.3-1.10.jar (main file)·7 Nov 2024PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 267.7 KB
    1.21.3·Forge1.101.10 · TslatEffectsLib-forge-1.21.3-1.10.jar (main file)·7 Nov 2024PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 423.5 KB
    1.21.3·Fabric1.101.10 · TslatEffectsLib-fabric-1.21.3-1.10.jar (main file)·7 Nov 2024PassedOur checks found nothing harmful in this file.Open this file on ModrinthNot on CurseForgeDownload · Stable · 271.4 KB
    1.20.1The latest file for its Minecraft version and loader·NeoForge1.8.61.8.6 · TslatEffectsLib-neoforge-1.20.1-1.8.6.jar (first file)·12 Jul 2024PassedOur checks found nothing harmful in this file. Its code was read too. Same code on Modrinth and CurseForge.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 293.9 KB
    1.20.1·Forge1.8.61.8.6 · TslatEffectsLib-forge-1.20.1-1.8.6.jar (first file)·12 Jul 2024PassedOur checks found nothing harmful in this file. Same code on Modrinth and CurseForge.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 293.8 KB
    1.20.1·Fabric1.8.61.8.6 · TslatEffectsLib-fabric-1.20.1-1.8.6.jar·12 Jul 2024PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 310.3 KB
    1.21 to 1.21.11.21 to 1.21.1The latest file for its Minecraft version and loader·NeoForge1.9.11.9.1 · TslatEffectsLib-neoforge-1.21-1.9.1.jar (first file)·6 Jul 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 270.2 KB
    1.21 to 1.21.11.21 to 1.21.1The latest file for its Minecraft version and loader·Forge1.9.1-slim1.9.1-slim · TslatEffectsLib-forge-1.21-1.9.1-slim.jar (first file)·6 Jul 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 269.0 KB
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