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    2,053,304 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 2026.269,472 projects gradedProjects with a letter from A to F. Counted on 25 Oct 2026.
    How it worksMalware we foundAPIAboutPrivacyTermsContact

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

    K4Lib

    Mod

    A shared library that other mods need to run.

    E37/ 100
    • OverviewE
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityUp to 1.12.2
    • ModpacksIn 205
    • ReleasesLatest Jan 2018

    Download

    k4lib-1.12.1-2.1.81-universal.jar

    Released 2 Jan 2018 · 164.5 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

    Points lost

    • No release in 8.8 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−3 points
    • Under 5 million downloads−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.8.8 years ago (2 Jan 2018) 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 8.8 years; no file for a popular modding version.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

      3 points lost12 / 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.32 of the 167 modpacks with two or more versions removed it in a later one (19%) See the 32 modpacks7 / 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 · K-4U/k4lib 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

      1 point lost3 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.553,838 3 / 4

    • Track record

      8 points lost0 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.12.0 years, 36 releases 0 / 8

    • Security

      Passed
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in all 10 latest files. See Security
    Total37 / 100

    22.3 of the 61 points that apply = 37 out of 100. The points above are rounded to whole numbers.

    About

    K4Lib is a shared library that provides a dependency for several K4 mods, including Hydraulicraft, ColorChat, PvPToggle, DoubleJump, ServerInfoProvider, ServerInfoViewer, Fast Travel, LiveNotifier, and RainSjaman. It is intended for use by mod developers integrating it into their projects, and it may also be included in modpacks that are not behind a paywall.

    Written from CurseForge and the GitHub README . 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 30
    Inventory Tweaks [1.12 only]-ChiselCExtra UtilitiesDPams HarvestCraftDWailaD

    Details

    Creator
    K4Unl
    License
    Not known
    Downloads
    554K
    Created
    6 Oct 2014
    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. Only in its files for 1.7.10, 1.8.8 to 1.12.2. 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 10 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.
      10 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 · All 10 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 10 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 and images and found none.

    We have not read its changelogs and 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 · 4 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.
      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 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
      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
      42 code files read

    Compatibility

    See all 36 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 K4Lib to work.

    ProjectTypeDownloadsGrade
    ServerInfoProviderEMod112K downloadsServerInfoViewerEMod56K downloadsFast TravelEMod21K downloadsLiveNotifierFMod7.6K downloadsRainSjamanEMod3.9K downloads

    Modpacks using this project

    Find modpacks with it

    205 modpacks include K4Lib in at least one of their versions. Here are the 30 most downloaded.

    ModpackDownloadsLast version with it
    Modern Skyblock 2698K downloadslast version with it 5 Jul 2017The Pioneers218K downloadslast version with it 9 Mar 2016All the Mods 0 - ATM052K downloadslast version with it 2 Apr 2020Galactic Engineers52K downloadslast version with it 2 Sep 2017Why Not Just Morph?46K downloadslast version with it 29 May 2024Compitum Magia44K downloadslast version with it 7 Jul 2017UberARKCraft Modpack41K downloadslast version with it 26 Oct 2016The Fox Pack34K downloadslast version with it 24 Nov 2015MUNDO L3TCRAFT26K downloadslast version with it 20 Oct 2015Tech Savvy20K downloadslast version with it 4 Jul 2016
    1 to 10 of 30123

    Often in the same modpacks

    Mods that modpacks often add together with K4Lib. Share: how many of the modpacks with K4Lib also have that mod.

    ProjectTypeShareGrade
    Inventory Tweaks [1.12 only]-Modin 80% of the modpacks with K4LibChiselCModin 71% of the modpacks with K4LibExtra UtilitiesDModin 65% of the modpacks with K4LibPams HarvestCraftDModin 62% of the modpacks with K4LibWailaDModin 60% of the modpacks with K4LibWaila HarvestabilityDModin 60% of the modpacks with K4LibBiblioCraftDModin 59% of the modpacks with K4LibWawla - What Are We Looking AtDModin 58% of the modpacks with K4LibMorpheusDModin 57% of the modpacks with K4LibBetterFpsCModin 56% of the modpacks with K4Lib
    1 to 10 of 30123

    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 to 1.12.2·Not stated2.1.81-universal2.1.81-universal · k4lib-1.12.1-2.1.81-universal.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.11.2·Not stated2.1.76-universal2.1.76-universal · k4lib-1.11.2-2.1.76-universal.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.10.2·Not stated1.0.74-universal1.0.74-universal · k4lib-1.10.2-1.0.74-universal.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.10·Not stated1.0.58-universal1.0.58-universal · k4lib-1.10-1.0.58-universal.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.9.4·Not stated1.0.5-universal1.0.5-universal · k4lib-1.9.4-1.0.5-universal.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.9·Not stated1.0.4-universal1.0.4-universal · k4lib-1.9-1.0.4-universal.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.8.9·Not stated1.0.18-universal1.0.18-universal · k4lib-1.8.9-1.0.18-universal.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.8.8·Not stated1.0.5-universal1.0.5-universal · k4lib-1.8.8-1.0.5-universal.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.8·Not stated1.0.11-universal1.0.11-universal · k4lib-1.8-1.0.11-universal.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.7.10·Not stated0.1.75-universal0.1.75-universal · k4lib-1.7.10-0.1.75-universal.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.

    36 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.12 to 1.12.21.12 to 1.12.2The latest file for its Minecraft version and loader·Forge2.1.81-universal2.1.81-universal · k4lib-1.12.1-2.1.81-universal.jar·2 Jan 2018PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 164.5 KB
    1.12.1·Forge2.1.80-universal2.1.80-universal · k4lib-1.12.1-2.1.80-universal.jar·30 Sep 2017PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 56.2 KB
    1.12·Forge2.1.77-universal2.1.77-universal · k4lib-1.12-2.1.77-universal.jar·8 Jul 2017PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 57.0 KB
    1.10.2The latest file for its Minecraft version and loader·Forge1.0.74-universal1.0.74-universal · k4lib-1.10.2-1.0.74-universal.jar·22 Apr 2017PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 57.1 KB
    1.11.2The latest file for its Minecraft version and loader·Forge2.1.76-universal2.1.76-universal · k4lib-1.11.2-2.1.76-universal.jar·22 Apr 2017PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 56.9 KB
    1.7.10The latest file for its Minecraft version and loader·Forge0.1.75-universal0.1.75-universal · k4lib-1.7.10-0.1.75-universal.jar·22 Apr 2017PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 51.3 KB
    1.10.2·Forge1.0.66-universal1.0.66-universal · k4lib-1.10.2-1.0.66-universal.jar·8 Oct 2016PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 56.3 KB
    1.10.2·Forge1.0.64-universal1.0.64-universal · k4lib-1.10.2-1.0.64-universal.jar·4 Oct 2016PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 56.1 KB
    1.10.2·Forge1.0.59-universal1.0.59-universal · k4lib-1.10.2-1.0.59-universal.jar·1 Oct 2016PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 54.3 KB
    1.10 to 1.10.21.10 to 1.10.2The latest file for its Minecraft version and loader·Forge1.0.58-universal1.0.58-universal · k4lib-1.10-1.0.58-universal.jar·23 Jun 2016PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 54.3 KB
    1.9.4The latest file for its Minecraft version and loader·Forge1.0.5-universal1.0.5-universal · k4lib-1.9.4-1.0.5-universal.jar·23 May 2016PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 53.7 KB
    1.9The latest file for its Minecraft version and loader·Forge1.0.4-universal1.0.4-universal · k4lib-1.9-1.0.4-universal.jar·1 Apr 2016PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 53.7 KB
    1.8.9The latest file for its Minecraft version and loader·Forge1.0.18-universal1.0.18-universal · k4lib-1.8.9-1.0.18-universal.jar·31 Mar 2016PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 53.2 KB
    1.8.9·Forge1.0.16-universal1.0.16-universal · k4lib-1.8.9-1.0.16-universal.jar·12 Feb 2016PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 52.6 KB
    1.8.9·Forge1.0.14-universal1.0.14-universal · k4lib-1.8.9-1.0.14-universal.jar·8 Feb 2016PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 52.3 KB
    1.8.9·Forge1.0.12-universal1.0.12-universal · k4lib-1.8.9-1.0.12-universal.jar·4 Feb 2016PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 51.9 KB
    1.8.9·Forge1.0.11-universal1.0.11-universal · k4lib-1.8.9-1.0.11-universal.jar·3 Feb 2016PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 51.6 KB
    1.8.9·Forge1.0.10-universal1.0.10-universal · k4lib-1.8.9-1.0.10-universal.jar·1 Feb 2016PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 50.5 KB
    1.8.9·Forge1.0.8-universal1.0.8-universal · k4lib-1.8.9-1.0.8-universal.jar·28 Jan 2016PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 49.8 KB
    1.8.9·Forge1.0.7-universal1.0.7-universal · k4lib-1.8.9-1.0.7-universal.jar·19 Jan 2016PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 49.7 KB
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