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    2,054,198 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 2026.269,438 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.

    LambdaLib

    Mod

    A common library that provides many modding utilities.

    E40/ 100
    • OverviewE
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityUp to 1.12.2
    • ModpacksIn 126
    • ReleasesLatest Mar 2019

    Download

    LambdaLib2-0.1.8.jar

    Released 6 Mar 2019 · 510.1 KB

    Passed: our checks found nothing harmful in this file.

    Download
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade E

    How grades work

    Strengths

    • Security checks passed
    • Public source code
    • Widely used

    Points lost

    • No release in 7.6 years−26 points
    • Newest file is for 1.12.2, older than the versions mods are made for now−9 points
    • Some modpacks removed it−1 point
    All 11 criteria

    • Maintenance

      27 points lost0 / 27
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.7.6 years ago (6 Mar 2019) 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.Newest supported: 1.12.2. About 9 years behind popular modding versions. Latest Minecraft: 26.3. Abandoned: no release for 7.6 years; no file for a popular modding version; no recent human commit.0 / 9
      Regular releasesIn how many of the last 24 months a new file came out. Full points at 8 months.No release in the last 24 months 0 / 6

    • 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.13 of the 99 modpacks with two or more versions removed it in a later one (13%) See the 13 modpacks9 / 10
      Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.Not measured yet.
      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 points7 / 7
      Source codeWhether the project page links to its source code, so anyone can read what it does.GitHub · LambdaInnovation/LambdaLib 7 / 7
      Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.Does not apply. CurseForge links are not in our data.

    • Popularity

      Full points4 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.1,219,448 4 / 4

    • Track record

      8 points lost0 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.11.0 years, 9 releases 0 / 8

    • Security

      Passed
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in both latest files. See Security
    Total40 / 100

    24.6 of the 61 points that apply = 40 out of 100. The points above are rounded to whole numbers.

    About

    LambdaLib is a modding utility library that helps Minecraft mod developers build interfaces, register content, and exchange data with less repetitive code. Its CGUI framework represents interfaces as hierarchical widgets, with reusable components for features such as drawing textures, displaying or editing text, and changing a button’s tint on hover; event handlers respond to clicks, typing, drawing, and other actions. CGUI can be used for ordinary screens as well as HUDs and other GUI-like displays, including interfaces rendered in 3D, and its in-game editor lets developers create interfaces visually and load them from XML. Widgets can be nested, moved and scaled relative to their parent, and copied along with their components and child widgets, making it easier to compose and reuse complex interface layouts. LambdaLib also includes AnnoReg, which uses annotations to assist with registry work, and NetworkS11n, which automates object serialization and simplifies sending messages and events across the network. Its serialization utilities also support XML and object copying, while the shared rules for exposed fields let developers control what data is included.

    Written from CurseForge . How we write it

    In-game changes

    It has no file for a recent Minecraft version. This is about its files for Minecraft 1.7.10 to 1.12.2.

    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
    Extra UtilitiesDInventory Tweaks [1.12 only]-BotaniaAChiselCPams HarvestCraftD

    Details

    Creator
    weathfold
    License
    Not known
    Downloads
    1.2M
    Created
    25 Oct 2015
    Official page
    CurseForge
    Links
    Source code

    Security

    No harmful code found

    It has no file for a recent Minecraft version. This is about its files for Minecraft 1.7.10 to 1.12.2.

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

    What it can do on your computer

    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 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 · Both latest files checked, last on 15 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.
      2 latest files: the newest file for each Minecraft version and loader. None is for a recent Minecraft version, so the answer above is about all of them. 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
    • 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

    It has no file for a recent Minecraft version. This is about its files for Minecraft 1.7.10 to 1.12.2.

    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 · Both 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 both files, for Minecraft 1.7.10 to 1.12.2. See each file in Releases

    AI

    No sign so far that AI was used to make it

    We looked for AI tools in its description, files, images and code history and found none.

    We have not read its changelogs 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 · 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.
      Not on Modrinth.
    • 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 in the description
      Changelogs not read yet
    • 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
      376 code files read

    Compatibility

    See all 9 files
    Forge
    1.71.101.151.1926.1

    Point at or tap a version to see its loaders.

    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.No file yet for any of the last 6 Minecraft versions.

    Related projects

    Projects that need LambdaLib to work.

    ProjectTypeDownloadsGrade
    AcademyCraftEMod1.2M downloads

    Modpacks using this project

    Find modpacks with it

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

    ModpackDownloadsLast version with it
    Regrowth967K downloadslast version with it 11 Jan 2017Omnifactory610K downloadslast version with it 6 Apr 2019Worldly Galaxies 4 | Multiplayer Questing Modpack (1200+ QUESTS)56K downloadslast version with it 3 Dec 2016SCP Skyblock48K downloadslast version with it 13 Apr 2020Heros Unite: Legacy & Terror47K downloadslast version with it 25 Sep 2025bleach soul society renewed42K downloadslast version with it 14 Sep 2019Mana Metal New Horizons26K downloadslast version with it 25 Jan 2026Technical Electrical Cosmic Chaos24K downloadslast version with it 8 Mar 2019Anime-Craft (Official)20K downloadslast version with it 3 Aug 2020Framework Protocol Resurgence(Protocol Alpha)17K downloadslast version with it 25 Jun 2019
    1 to 10 of 30123

    Often in the same modpacks

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

    ProjectTypeShareGrade
    Extra UtilitiesDModin 83% of the modpacks with LambdaLibInventory Tweaks [1.12 only]-Modin 80% of the modpacks with LambdaLibBotaniaAModin 79% of the modpacks with LambdaLibChiselCModin 78% of the modpacks with LambdaLibPams HarvestCraftDModin 75% of the modpacks with LambdaLibThermal FoundationCModin 74% of the modpacks with LambdaLibThermal ExpansionCModin 71% of the modpacks with LambdaLibBlood MagicAModin 70% of the modpacks with LambdaLibEnder IOAModin 69% of the modpacks with LambdaLibWailaDModin 67% of the modpacks with LambdaLib
    1 to 10 of 29123

    Latest files

    The newest file for each Minecraft version and loader. None is for a recent Minecraft version. Recent versions: those released in the last 2 years, plus 1.20.1 and 1.21.1, among the most played in modpacks.

    MinecraftLoaderVersionSecuritySendsRequires
    Older Minecraft versions
    1.12.2·Not stated0.1.80.1.8 · LambdaLib2-0.1.8.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.7.10·Not stated1.2.31.2.3 · LambdaLib-1.2.3.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.

    9 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.12.2The latest file for its Minecraft version and loader·Forge0.1.80.1.8 · LambdaLib2-0.1.8.jar·6 Mar 2019PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 510.1 KB
    1.12.2·Forge0.1.70.1.7 · LambdaLib2-0.1.7.jar·2 Mar 2019PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 509.8 KB
    1.7.10The latest file for its Minecraft version and loader·Forge1.2.31.2.3 · LambdaLib-1.2.3.jar·7 Aug 2016PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 705.1 KB
    1.7.10·Forge1.2.21.2.2 · LambdaLib-1.2.2.jar·23 Jul 2016PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 716.5 KB
    1.7.10·Forge1.2.11.2.1 · LambdaLib-1.2.1.jar·6 Jul 2016PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 653.7 KB
    1.7.10·Forge1.2.01.2.0 · LambdaLib-1.2.0.jar·7 May 2016PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 784.9 KB
    1.7.10·Forge1.1.11.1.1 · LambdaLib-1.1.1.jarBeta·29 Jan 2016PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Beta · 705.2 KB
    1.7.10·Forge1.1.01.1.0 · LambdaLib-1.1.0.jarBeta·3 Jan 2016PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Beta · 1.5 MB
    1.7.10·Forge1.01.0 · LambdaLib-1.0.jar·25 Oct 2015PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 1.1 MB