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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.

    KubeJS Studio

    Mod

    A GUI Studio and built-in IDE for KubeJS.

    B86/ 100
    • OverviewB
    • SecurityPassed
    • PrivacyNone found
    • AIAI-aided code +1
    • CompatibilityUp to 26.1.2
    • ModpacksIn 60
    • ReleasesLatest 29 Sep

    Download

    kubejsstudio-neoforge-26.1-1.3.0.jar

    Released 29 Sep 2026 · 8.0 MB

    Passed: our checks found nothing harmful in this file.

    Download

    Required to run

    • KubeJSAMinecraft 26.1.2 · NeoForge (release 8.0.7)
    • RhinoNeeded by KubeJSAMinecraft 26.1.2 · NeoForge (release 2101.2.7-build.85-Rhino)
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade B

    How grades work

    Strengths

    • Security checks passed
    • Regular releases for Minecraft 26.1.2, a version many recently updated mods still support
    • Public source code and issue tracker

    Points lost

    • First release only 4 months ago−6 points
    • Some modpacks removed it−1 point
    • Under 5 million downloads−1 point
    All 11 criteria

    • Maintenance

      Full points21 / 21
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.4 weeks ago (29 Sep 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.26.1.2 on NeoForge, 1.20.1 on Forge. 62% of the 995 popular NeoForge mods updated in the last 6 months also have files for 26.1.2. 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.Does not apply. The project is under 6 months old.

    • Stability

      1 point lost14 / 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.7 of the 49 modpacks with two or more versions removed it in a later one (14%) See the 7 modpacks9 / 10
      Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.Does not apply. The project is under 6 months old.
      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.git.tysontheember.dev 7 / 7
      Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.git.tysontheember.dev 3 / 3

    • Popularity

      1 point lost3 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.26,210 3 / 4

    • Track record

      6 points lost2 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.4 months, 14 releases 2 / 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
    Total86 / 100

    49.7 of the 58 points that apply = 86 out of 100. The points above are rounded to whole numbers.

    Images

    • Themes
    • Tags
    • Settings
    • Recipes
    • Farmers Delight Recipes
    • Create Recipes
    • Properties
    • Loot
    • Andvanced Loot
    • Files
    • Tools
    • Hover Tooltips
    • Error Detection
    • Console
    • Create
    • Review

    About

    KubeJS Studio is an in-game authoring workspace for creating and editing KubeJS content, with visual tools and a code editor that can be used together; it writes ordinary scripts, datapack JSON and resource files that remain usable without Studio. Its recipe browser can create, override, disable or duplicate recipes, with forms for vanilla crafting, cooking, stonecutting and smithing, as well as Create processing such as heated mixing and sequenced assembly, plus layouts for Farmer’s Delight, Ars Nouveau and common Mekanism machines. Recipes from other mods can use forms generated from their KubeJS schemas, while unsupported or more complex recipe data can be edited as raw JSON; JEI and EMI recipe pages can also open a selected recipe in Studio. The tag editor works across items, blocks, fluids, entities and exposed dynamic registries, showing proposed additions and removals against live contents before changes are queued. Loot tables are edited as pools and entries, with typed controls for rolls, counts, weights, conditions and functions such as tool checks, random chances, Fortune-style bonuses, explosion decay, names, lore and components or NBT. Studio can change item and block properties, including item stack size, durability and food values, and block hardness, light and mining settings; it can also rename and retexture existing content and create items, blocks and fluids with builders for examples such as tools, armor, slabs, doors and crops. For script authors, its file explorer and multi-tab editor provides live KubeJS completion, hover documentation, signature help and diagnostics informed by the running pack, including mod-provided recipe types and identifiers. Changes made through the visual tools are queued for review, with a file diff before applying by default; recipe, tag and loot edits can be written as scripts or datapack JSON, while property changes, new registry entries and resource edits use their corresponding generated files. A console shows KubeJS errors and warnings, lets users jump from an error to its source line, and provides commands and reload controls for testing changes.

    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: User interfaceChanges 4 game code files in this area: menus, screens, tooltips, the chat window and the in-game overlay., Rendering and graphicsChanges 3 game code files in this area: drawing mobs, items, particles and textures on screen., Game data and resourcesChanges 1 game code file in this area: recipes, tags, advancements, language files and other game data. and Game coreChanges 1 game code file in this area: the main loop, lighting and other code the whole game uses..

    A library packed inside it changes 34 more game code files: LowDragLib2.

    Adds 2 blocks and 7 key bindings.

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

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

    Often used with it

    See all 30
    Sophisticated StorageAFTB Chunks (NeoForge)AKubeJS CreateBAllTheLeaks (Memory Leak Fix)AFTB Essentials (Forge & Fabric)A

    Details

    Creator
    TysonTheEmber
    License
    Embers Modding License
    Downloads
    26K
    Created
    4 Jul 2026
    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.

    What it can do on your computer

    Accepts connections from other computers
    It can accept connections from other computers. Found in LowDragLib2, a library it includes.
    Starts other programs
    It can start another program on your computer. Found in the mod's own code and in LowDragLib2, a library it includes.
    Uses folders outside the game
    It can read or write files outside your Minecraft folder, on the rest of your computer. Found: your Downloads and the temporary files folder.
    Creates settings files
    The mod keeps its settings in the config folder of your game, where you can change or delete them. 8 files 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. Found in LowDragLib2, a library it includes. 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 · All 3 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.
      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.
    • Uses folders outside the game
      Uses the temporary files folder.Uses Downloads.
    • Looked for, not foundWe looked for these in the file and did not find them.
      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

    AI was used for its code and text

    The author declares AI code and text on Modrinth.

    We looked for AI tools in its texts, files and images 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 · 5 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.
      Declares AI code, text. No AI features declared.
    • 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
      2 of 28 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
      4 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
      2,134 code files read

    Compatibility

    See all 14 files
    NeoForge
    Forge
    1.201.2126.126.3

    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.Install it in your game only. Servers do not need it, so you can join any server.
    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.
    KubeJSAKotlin for Forgeon ForgeA
    OptionalProjects it can work with but does not need. The author lists them.
    Just Enough Items (JEI)AEMIin some filesB
    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.No file yet for the newest Minecraft version.

    Modpacks using this project

    Find modpacks with it

    60 modpacks include KubeJS Studio in at least one of their versions. Here are the 30 most downloaded.

    ModpackDownloadsLast version with it
    Modded Together138K downloadslast version with it 24 Sep 2026Druidic Quest: Expert52K downloadslast version with it 13 Oct 2026Mechanical Infinity15K downloadslast version with it 5 Aug 2026InsaneCraft Insanity Reborn7.3K downloadslast version with it 24 Sep 2026Xomaps Potato Sky6.5K downloadslast version with it 18 Oct 2026Modern Revolutions Skies4K downloadslast version with it 30 Jul 2026Pixelmon E2craft3.7K downloadslast version with it 3 Aug 2026StoneBlock Project Matter3.1K downloadslast version with it 9 Aug 2026Avaritia infinity adventure2.1K downloadslast version with it 22 Oct 2026Mystical Astral Infinity1.9K downloadslast version with it 22 Sep 2026
    1 to 10 of 30123

    Often in the same modpacks

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

    ProjectTypeShareGrade
    Sophisticated StorageAModin 66% of the modpacks with KubeJS StudioFTB Chunks (NeoForge)AModin 66% of the modpacks with KubeJS StudioKubeJS CreateBModin 61% of the modpacks with KubeJS StudioAllTheLeaks (Memory Leak Fix)AModin 61% of the modpacks with KubeJS StudioFTB Essentials (Forge & Fabric)AModin 61% of the modpacks with KubeJS StudioChippedCModin 59% of the modpacks with KubeJS StudioFTB Ultimine (NeoForge)AModin 57% of the modpacks with KubeJS StudioLootJS: KubeJS AddonAModin 56% of the modpacks with KubeJS StudioCreate: Copycats+AModin 56% of the modpacks with KubeJS StudiosparkAModin 54% of the modpacks with KubeJS Studio
    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
    26.1 to 26.1.2·NeoForge1.3.01.3.0 · kubejsstudio-neoforge-26.1-1.3.0.jarSends: None foundRequires:KubeJSPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.1·NeoForge1.3.01.3.0 · kubejsstudio-neoforge-1.21.1-1.3.0.jarSends: None foundRequires:KubeJSPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.1·Forge1.3.01.3.0 · kubejsstudio-forge-1.20.1-1.3.0.jarSends: None foundRequires:KubeJS, Kotlin for ForgeKubeJS, Kotlin for ForgePassedOur checks found nothing harmful in this file. Its code was read too.

    14 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.21.1The latest file for its Minecraft version and loader·NeoForge1.3.01.3.0 · kubejsstudio-neoforge-1.21.1-1.3.0.jar (main file)·29 Sep 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 8.4 MB
    26.1 to 26.1.226.1 to 26.1.2The latest file for its Minecraft version and loader·NeoForge1.3.01.3.0 · kubejsstudio-neoforge-26.1-1.3.0.jar (main file)·29 Sep 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 8.0 MB
    1.20.1The latest file for its Minecraft version and loader·Forge1.3.01.3.0 · kubejsstudio-forge-1.20.1-1.3.0.jar (main file)·29 Sep 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 6.9 MB
    1.21.1·NeoForge1.2.01.2.0 · kubejsstudio-neoforge-1.21.1-1.2.0.jar (main file)·25 Sep 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 8.3 MB
    1.20.1·Forge1.2.01.2.0 · kubejsstudio-forge-1.20.1-1.2.0.jar (main file)·25 Sep 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 6.9 MB
    26.1 to 26.1.226.1 to 26.1.2·NeoForge1.2.01.2.0 · kubejsstudio-neoforge-26.1-1.2.0.jar (main file)·25 Sep 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 8.0 MB
    1.21.1·NeoForge1.1.01.1.0 · kubejsstudio-neoforge-1.21.1-1.1.0.jar (main file)·1 Sep 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 7.8 MB
    26.1 to 26.1.226.1 to 26.1.2·NeoForge1.1.01.1.0 · kubejsstudio-neoforge-26.1-1.1.0.jar (main file)·1 Sep 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 7.7 MB
    1.20.1·Forge1.1.01.1.0 · kubejsstudio-forge-1.20.1-1.1.0.jar (main file)·1 Sep 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 5.9 MB
    1.21.1·NeoForge1.0.11.0.1 · kubejsstudio-neoforge-1.21.1-1.0.1.jar (main file)·19 Aug 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 7.6 MB
    1.20.1·Forge1.0.11.0.1 · kubejsstudio-forge-1.20.1-1.0.1.jar (main file)·19 Aug 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 5.7 MB
    1.21.1·NeoForge1.0.01.0.0 · kubejsstudio-neoforge-1.21.1-1.0.0.jar (main file)·16 Aug 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 7.6 MB
    1.20.1·Forge1.0.01.0.0 · kubejsstudio-forge-1.20.1-1.0.0.jar (main file)·16 Aug 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 5.7 MB
    1.21.1·NeoForge1.0.0-beta11.0.0-beta1 · kubejsstudio-neoforge-1.21.1-1.0.0-beta1.jar (main file)Beta·4 Jul 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 438.8 KB