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    2,054,849 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 2026.269,417 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.

    HZLib

    Mod

    Needed by other Heria Zone mods to run.

    B81/ 100
    • OverviewB
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityMinecraft 1.21.1
    • ModpacksIn 20
    • ReleasesLatest 4 Jul

    Download

    hzlib-fabric-1.21.1-1.0.0.jar

    Released 4 Jul 2026 · 336.7 KB

    Passed: our checks found nothing harmful in this file.

    Download
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade B

    How grades work

    Strengths

    • Security checks passed
    • Stable releases

    Points lost

    • First release only 4 months ago−6 points
    • No public issue tracker−3 points
    • No release in 4 months−1 point
    • Under 5 million downloads−1 point
    All 11 criteria

    • Maintenance

      1 point lost20 / 21
      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 (4 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, Forge and NeoForge. 53% of the 718 popular Fabric 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.Does not apply. The project is under 6 months old.

    • Stability

      Full points15 / 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.1 of the 14 modpacks with two or more versions removed it in a later one (7%) 10 / 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

      3 points lost7 / 10
      Source codeWhether the project page links to its source code, so anyone can read what it does.GitHub · heria-zone/hzlib 7 / 7
      Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.No link to report problems 0 / 3

    • Popularity

      1 point lost3 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.17,383 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, 6 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
    Total81 / 100

    47.1 of the 58 points that apply = 81 out of 100. The points above are rounded to whole numbers.

    About

    HZLib is a shared library that provides the framework and platform services used by Heria Zone’s other mods; it is not a standalone gameplay mod and does nothing on its own. Its entity framework supports reusable entity families, composable features, configurable stats, and variants, while its appearance system can vary textures, models, size, and animations or switch and combine appearance layers according to runtime conditions. Data-driven animation profiles define slots such as idle, walking, resting, sitting, riding, attacking, and being hurt, with animation pools and selection behaviors; conditional idle slots can also coordinate changes such as sitting or standing. The library includes entity levelling and combat progression with configurable attribute scaling, protection features, and enchantment integration. For entity data, it supplies a version-agnostic, typed save-and-load pipeline with migration support, along with declarative per-bone visibility rules for model animations. Its platform services abstract registration, configuration, events, and networking across Fabric, Forge, and NeoForge, allowing Heria Zone mods to share common logic across those loaders.

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

    In-game changes

    Does not change the game's code directly.

    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
    Complementary Shaders - UnboundACreate Big CannonsAChunkyACreate: Copycats+ACreate AeronauticsB

    Details

    Creator
    Heria Zone
    License
    GNU Lesser General Public License v3.0 only
    Downloads
    17K
    Created
    24 Jun 2026
    Official pages
    Modrinth , CurseForge
    Links
    Source code

    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 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.
    • 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 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

    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 · 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.
      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.
      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
      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
      235 code files read

    Compatibility

    See all 6 files
    Fabric
    NeoForge
    Forge
    1.2126.126.2

    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.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 the newest Minecraft version.

    Related projects

    Projects that need HZLib to work.

    ProjectTypeDownloadsGrade
    Lovely Robot: LegacyDMod2.1K downloads

    Modpacks using this project

    Find modpacks with it

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

    ModpackDownloadsLast version with it
    Ships Ahoy!4K downloadslast version with it 8 Oct 2026MacedCraft2.8K downloadslast version with it 2 Oct 2026Aetherwinds1K downloadslast version with it 30 Jul 2026Embervale SMP910 downloadslast version with it 14 Oct 2026Mechanik866 downloadslast version with it 21 Oct 2026DiretoriaPlays - Future Era (Era do Futuro)864 downloadslast version with it 14 Aug 2026AdvoTech Aeronautic718 downloadslast version with it 15 Sep 2026Pseudo Eschaton384 downloadslast version with it 16 Sep 2026Wasteland Decay - Advanced Parasite Apocalypse275 downloadslast version with it 17 Oct 2026Fallen Aeronautics140 downloadslast version with it 20 Oct 2026
    1 to 10 of 2012

    Often in the same modpacks

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

    ProjectTypeShareGrade
    Complementary Shaders - UnboundAShaderin 60% of the modpacks with HZLibCreate Big CannonsAModin 55% of the modpacks with HZLibChunkyAModin 55% of the modpacks with HZLibCreate: Copycats+AModin 55% of the modpacks with HZLibCreate AeronauticsBModin 50% of the modpacks with HZLibDeeper and DarkerAModin 50% of the modpacks with HZLibLovely Robot: RebootCModin 45% of the modpacks with HZLibRelicsAModin 45% of the modpacks with HZLibTrashSlotAModin 45% of the modpacks with HZLibFTB Ultimine (NeoForge)AModin 45% of the modpacks with HZLib
    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
    1.21.1·Fabric1.0.01.0.0 · hzlib-fabric-1.21.1-1.0.0.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.1·NeoForge1.0.01.0.0 · hzlib-neoforge-1.21.1-1.0.0.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.1·Forge1.0.01.0.0 · hzlib-forge-1.21.1-1.0.0.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.

    6 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.21.1The latest file for its Minecraft version and loader·NeoForge1.0.01.0.0 · hzlib-neoforge-1.21.1-1.0.0.jar (main file)·4 Jul 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 319.6 KB
    1.21.1The latest file for its Minecraft version and loader·Forge1.0.01.0.0 · hzlib-forge-1.21.1-1.0.0.jar (main file)·4 Jul 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 321.2 KB
    1.21.1The latest file for its Minecraft version and loader·Fabric1.0.01.0.0 · hzlib-fabric-1.21.1-1.0.0.jar (main file)·4 Jul 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 336.7 KB
    1.21.1·NeoForge0.1.00.1.0 · hzlib-neoforge-1.21.1-0.1.0.jar (main file)Alpha·24 Jun 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Alpha · 289.5 KB
    1.21.1·Forge0.1.00.1.0 · hzlib-forge-1.21.1-0.1.0.jar (main file)Alpha·24 Jun 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Alpha · 291.1 KB
    1.21.1·Fabric0.1.00.1.0 · hzlib-fabric-1.21.1-0.1.0.jar (main file)Alpha·24 Jun 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Alpha · 305.6 KB