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    2,024,305 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 2026.269,486 projects gradedProjects with a letter from A to F. Counted on 24 Oct 2026.
    How it worksMalware we foundAPIAboutPrivacyTermsContact

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

    CraftTweaker

    Mod

    Change recipes and customize game rules in modpacks and servers.

    A96/ 100
    • OverviewA
    • SecurityPassed
    • PrivacyGoes online
    • AINone found
    • CompatibilityUp to 1.21.1
    • ModpacksIn 28,957
    • ReleasesLatest 8 Jul

    Download

    CraftTweaker-fabric-1.21.1-21.0.38.jar

    Released 17 Mar 2026 · 4.0 MB

    Passed: our checks found nothing harmful in this file.

    Download

    Required to run

    • Fabric APIAMinecraft 1.21.1 · Fabric (release 0.116.17)
    • Faux Custom Entity DataAMinecraft 1.21.1 · Fabric (release 13.0.1)
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade A

    How grades work

    Strengths

    • Public source code and issue tracker
    • Widely used
    • Around for years

    Points lost

    • Some modpacks removed it−2 points
    • No release in 4 months−1 point
    All 11 criteria

    • Maintenance

      1 point lost26 / 27
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.4 months ago (8 Jul 2026) 11 / 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, 1.20.4 on Forge. 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 16 of the last 24 months 6 / 6

    • Stability

      2 points lost20 / 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.62 of the 393 modpacks with two or more versions removed it in a later one (16%) See the 62 modpacks8 / 10
      Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.Not counted: it puts out releases very often, so quick fixes are normal for it 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 · CraftTweaker/CraftTweaker 7 / 7
      Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.GitHub issues · CraftTweaker/CraftTweaker 3 / 3

    • Popularity

      Full points4 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.233,787,794 4 / 4

    • Track record

      Full points8 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.10.8 years, 1650 releases 8 / 8

    • Security

      Passed
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in all 4 latest files for recent Minecraft versions. See Security
    Total96 / 100

    67.9 of the 71 points that apply = 96 out of 100. The points above are rounded to whole numbers.

    About

    CraftTweaker is a scripting mod for modpack authors and servers to tailor Minecraft, using its ZenScript language to define changes in script files. Scripts can add, remove, or revise recipes across crafting systems, including the crafting table, furnace, campfire, and modded machines such as Botania’s Mana Infusion and Thermal Expansion’s Pulverizer. Crafting-table scripts can define shapeless, shaped, and mirrored recipes, with optional recipe functions that determine outputs from input details such as damage or NBT data. Beyond recipes, CraftTweaker can script events, add commands, change item properties, and add item tooltips; when used with addon mods, it can also support additions such as custom blocks, items, and world-generation trees. A server can send its scripts to joining clients, so they receive the server’s changes without needing their own script files.

    Written from Modrinth . How we write it

    In-game changes

    Changes the game's code in 4 areas, as a library other mods build on: Inventory and itemsChanges 3 game code files in this area: items, chests and other containers, crafting and enchanting., Game data and resourcesChanges 3 game code files in this area: recipes, tags, advancements, language files and other game data., Networking and multiplayerChanges 2 game code files in this area: connections, the server list and what is sent between your game and a server. and Server and world logicChanges 1 game code file in this area: the world, commands, scoreboards, saved data and game rules..

    Adds no new blocks, items or other content.

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

    Often used with it

    See all 29
    Thermal FoundationCThermal ExpansionCChiselCFastWorkbenchBBotaniaA

    Details

    Creators
    jaredlll08, Witixin and kindlich
    License
    MIT License
    Downloads
    233.8M
    Created
    28 Dec 2015
    Official pages
    Modrinth , CurseForge
    Links
    Source code , Issues , Wiki , Discord

    Security

    No harmful code found

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

    What it can do on your computer

    Can download and run new code
    The same part of the code can download data and run it as code. Auto-updaters do this, and so does malware. Only in its files for Fabric 1.20.1 to 1.21.1.Not a Warning: we read its code and found no code downloaded over http or run without a check.
    Accepts connections from other computers
    It can accept connections from other computers. Only in its files for Fabric 1.20.1 to 1.21.1.
    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 the mod's own code, in javassist, a library it includes and in reflections, a library it includes. See Privacy
    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.

    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 58 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.
      58 latest files: the newest file for each Minecraft version and loader. The answer above is about the 4 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 about you

    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 · All 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 all 4 files, for recent Minecraft versions. See each file in Releases
    • blamejared.com
      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 that AI was used to make it

    We looked for AI tools in its texts, files, images, code history and pull requests 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 · 8 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
      2,878 commits read
    • Pull requestsThe recent pull requests, comments, topics and README of the GitHub repository.
      Nothing found
      50 pull requests read
    • 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
      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
    • Icon and galleryThe metadata of the original icon and gallery images of the project.
      Nothing found
      2 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
      2,373 code files read

    Compatibility

    See all 1,650 files
    Fabric
    NeoForge
    Forge
    1.31.81.111.161.2026.1

    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 APIon FabricAFaux Custom Entity Dataon FabricA
    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

    103 projects need CraftTweaker to work. Here are the 100 most downloaded.

    ProjectTypeDownloadsGrade
    MTLibDMod108.2M downloadsContentTweakerDMod59.2M downloadsJEITweakerCMod43.7M downloadsLootTweakerCMod37.1M downloadsItem StagesCMod27.3M downloadsInitial InventoryCMod26.9M downloadsDimension StagesEMod21.9M downloadsZenStagesEMod17.9M downloadsCreateTweakerCMod17.4M downloadsWaila StagesEMod16.5M downloads
    1 to 10 of 10012345…10

    Modpacks using this project

    Find modpacks with it
    Modpacks that released a new version with this project, each month
    1K5000
    Oct 2024: 701 modpacksNov 2024: 697 modpacksDec 2024: 759 modpacksJan 2025: 810 modpacksFeb 2025: 763 modpacksMar 2025: 731 modpacksApr 2025: 719 modpacksMay 2025: 755 modpacksJun 2025: 691 modpacksJul 2025: 753 modpacksAug 2025: 692 modpacksSep 2025: 607 modpacksOct 2025: 663 modpacksNov 2025: 639 modpacksDec 2025: 666 modpacksJan 2026: 737 modpacksFeb 2026: 656 modpacksMar 2026: 671 modpacksApr 2026: 636 modpacksMay 2026: 668 modpacksJun 2026: 632 modpacksJul 2026: 642 modpacksAug 2026: 605 modpacksSep 2026: 530 modpacks
    Oct 2024Oct 2025Sep 2026
    Modpacks that released a new version with this project, each month
    Oct 2024701
    Nov 2024697
    Dec 2024759
    Jan 2025810
    Feb 2025763
    Mar 2025731
    Apr 2025719
    May 2025755
    Jun 2025691
    Jul 2025753
    Aug 2025692
    Sep 2025607
    Oct 2025663
    Nov 2025639
    Dec 2025666
    Jan 2026737
    Feb 2026656
    Mar 2026671
    Apr 2026636
    May 2026668
    Jun 2026632
    Jul 2026642
    Aug 2026605
    Sep 2026530

    28,957 modpacks include CraftTweaker in at least one of their versions. Here are the 30 most downloaded.

    ModpackDownloadsLast version with it
    RLCraft30.4M downloadslast version with it 27 Jun 2023SkyFactory 414.2M downloadslast version with it 13 Dec 2021DawnCraft - Echoes of Legends10.5M downloadslast version with it 20 Nov 2025DeceasedCraft - Urban Zombie Apocalypse9.8M downloadslast version with it 12 Jul 2024Cursed Walking - A Modern Zombie Apocalypse8.7M downloadslast version with it 22 Feb 2025Better MC [FABRIC] BMC17.9M downloadslast version with it 4 Jun 2022Roguelike Adventures and Dungeons7.6M downloadslast version with it 15 May 2026SevTech: Ages7.2M downloadslast version with it 17 Dec 2021FTB Presents SkyFactory 36.8M downloadslast version with it 10 Dec 2021All the Mods 6 - ATM66.5M downloadslast version with it 21 Aug 2020
    1 to 10 of 30123

    Often in the same modpacks

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

    ProjectTypeShareGrade
    Thermal FoundationCModin 40% of the modpacks with CraftTweakerThermal ExpansionCModin 39% of the modpacks with CraftTweakerChiselCModin 39% of the modpacks with CraftTweakerFastWorkbenchBModin 39% of the modpacks with CraftTweakerBotaniaAModin 38% of the modpacks with CraftTweakerImmersive EngineeringCModin 37% of the modpacks with CraftTweakerCooking for BlockheadsAModin 35% of the modpacks with CraftTweakerMekanism GeneratorsBModin 35% of the modpacks with CraftTweakerEnder Storage 1.8.+CModin 35% of the modpacks with CraftTweakerFastFurnaceBModin 34% of the modpacks with CraftTweaker
    1 to 10 of 29123

    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·Fabric21.0.3821.0.38 · CraftTweaker-fabric-1.21.1-21.0.38.jarSends: Nothing about youRequires:Fabric API, Faux Custom Entity DataFabric API, Faux Custom Entity DataPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.1·NeoForge21.0.3821.0.38 · CraftTweaker-neoforge-1.21.1-21.0.38.jarSends: Nothing about youRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.1·Fabric14.0.6014.0.60 · CraftTweaker-fabric-1.20.1-14.0.60.jarSends: Nothing about youRequires:Fabric API, Faux Custom Entity DataFabric API, Faux Custom Entity DataPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.1·Forge14.0.6014.0.60 · CraftTweaker-forge-1.20.1-14.0.60.jarSends: Nothing about youRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    Older Minecraft versions
    1.21·Fabric20.0.2420.0.24 · CraftTweaker-fabric-1.21-20.0.24.jarSends: Nothing about youRequires:Fabric API, Faux Custom Entity DataFabric API, Faux Custom Entity DataPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21·NeoForge20.0.2420.0.24 · CraftTweaker-neoforge-1.21-20.0.24.jarSends: Nothing about youRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.6·Fabric19.0.1319.0.13 · CraftTweaker-fabric-1.20.6-19.0.13.jarSends: Nothing about youRequires:Faux Custom Entity Data, Fabric APIFaux Custom Entity Data, Fabric APIPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.6·NeoForge19.0.1319.0.13 · CraftTweaker-neoforge-1.20.6-19.0.13.jarSends: Nothing about youRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.5·Fabric18.0.318.0.3 · CraftTweaker-fabric-1.20.5-18.0.3.jarSends: Nothing about youRequires:Fabric API, Faux Custom Entity DataFabric API, Faux Custom Entity DataPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.5·NeoForge18.0.318.0.3 · CraftTweaker-neoforge-1.20.5-18.0.3.jarSends: Nothing about youRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1 to 10 of 58123456

    1,650 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.16.4 to 1.16.51.16.4 to 1.16.5The latest file for its Minecraft version and loader·Forge7.1.2.5347.1.2.534 · CraftTweaker-1.16.5-7.1.2.534.jar·8 Jul 2026PassedOur checks found nothing harmful in this file. Its code was read too.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 2.4 MB
    1.16.4 to 1.16.51.16.4 to 1.16.5·Forge7.1.2.5337.1.2.533 · CraftTweaker-1.16.5-7.1.2.533.jar·26 Jun 2026PassedOur checks found nothing harmful in this file. Its code was read too.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 2.4 MB
    1.16.4 to 1.16.51.16.4 to 1.16.5·Forge7.1.2.5327.1.2.532 · CraftTweaker-1.16.5-7.1.2.532.jar·26 Jun 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 2.4 MB
    1.16.4 to 1.16.51.16.4 to 1.16.5·Forge7.1.2.5317.1.2.531 · CraftTweaker-1.16.5-7.1.2.531.jar·26 Jun 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 2.4 MB
    1.16.4 to 1.16.51.16.4 to 1.16.5·Forge7.1.2.5307.1.2.530 · CraftTweaker-1.16.5-7.1.2.530.jar·26 Jun 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 2.4 MB
    1.16.4 to 1.16.51.16.4 to 1.16.5·Forge7.1.2.5297.1.2.529 · CraftTweaker-1.16.5-7.1.2.529.jar·26 Jun 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 2.4 MB
    1.16.4 to 1.16.51.16.4 to 1.16.5·Forge7.1.2.5287.1.2.528 · CraftTweaker-1.16.5-7.1.2.528.jar·26 Jun 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 2.4 MB
    1.12.2The latest file for its Minecraft version and loader·Forge1.12-4.1.20.7151.12-4.1.20.715 · CraftTweaker2-1.12-4.1.20.715.jar·7 May 2026PassedOur checks found nothing harmful in this file. Its code was read too.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 1.5 MB
    1.12.2·Forge1.12-4.1.20.7141.12-4.1.20.714 · CraftTweaker2-1.12-4.1.20.714.jar·7 May 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 1.5 MB
    1.12.2·Forge1.12-4.1.20.7121.12-4.1.20.712 · CraftTweaker2-1.12-4.1.20.712.jar·5 May 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 1.5 MB
    1.20.1The latest file for its Minecraft version and loader·Forge14.0.6014.0.60 · CraftTweaker-forge-1.20.1-14.0.60.jar (main file)·17 Mar 2026PassedOur 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 · 3.1 MB
    1.20.1The latest file for its Minecraft version and loader·Fabric14.0.6014.0.60 · CraftTweaker-fabric-1.20.1-14.0.60.jar (main file)·17 Mar 2026PassedOur 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 · 3.8 MB
    1.21.1The latest file for its Minecraft version and loader·NeoForge21.0.3821.0.38 · CraftTweaker-neoforge-1.21.1-21.0.38.jar (main file)·17 Mar 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 3.3 MB
    1.21.1The latest file for its Minecraft version and loader·Fabric21.0.3821.0.38 · CraftTweaker-fabric-1.21.1-21.0.38.jar (main file)·17 Mar 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 4.0 MB
    1.21.1·NeoForge21.0.3721.0.37 · CraftTweaker-neoforge-1.21.1-21.0.37.jar (main file)·17 Mar 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 3.3 MB
    1.21.1·Fabric21.0.3721.0.37 · CraftTweaker-fabric-1.21.1-21.0.37.jar (main file)·17 Mar 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 4.0 MB
    1.21.1·NeoForge21.0.3621.0.36 · CraftTweaker-neoforge-1.21.1-21.0.36.jar (main file)·15 Mar 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 3.3 MB
    1.21.1·Fabric21.0.3621.0.36 · CraftTweaker-fabric-1.21.1-21.0.36.jar (main file)·15 Mar 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 4.0 MB
    1.12.2·Forge1.12-4.1.20.7111.12-4.1.20.711 · CraftTweaker2-1.12-4.1.20.711.jar·2 Jan 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 1.5 MB
    1.12.2·Forge1.12-4.1.20.7101.12-4.1.20.710 · CraftTweaker2-1.12-4.1.20.710.jar·2 Jan 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 1.5 MB
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