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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.
    How it worksMalware we foundAPIAboutPrivacyTermsContact

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

    HeIium

    Mod

    Uses less memory, especially in worlds with lots of mods.

    F13/ 100
    • OverviewF
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityMinecraft 1.16.5
    • ModpacksIn 54
    • ReleasesLatest Nov 2021

    Download

    helium-1.0.jar Beta

    Released 14 Nov 2021 · 69.7 KB

    Passed: our checks found nothing harmful in this file.

    Download
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade F

    How grades work

    Strengths

    • Security checks passed

    Points lost

    • No release in 4.9 years−18 points
    • Many modpacks removed it−10 points
    • No file for a Minecraft version most modpacks use−9 points
    • Only one release−8 points
    • No source code link−7 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.4.9 years ago (14 Nov 2021) 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.1.16.5 on Forge. About 5.7 years behind popular modding versions. Latest Minecraft: 26.3. Abandoned: no release for 4.9 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

      10 points lost5 / 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.20 of the 49 modpacks with two or more versions removed it in a later one (41%) See the 20 modpacks0 / 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

      7 points lost0 / 7
      Source codeWhether the project page links to its source code, so anyone can read what it does.No link on the project page 0 / 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.65,963 3 / 4

    • Track record

      8 points lost0 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.4.9 years, 1 release 0 / 8

    • Security

      Passed
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in the latest file. See Security
    Total13 / 100

    7.9 of the 61 points that apply = 13 out of 100. The points above are rounded to whole numbers.

    About

    Helium is an unofficial Forge port of CaffeineMC’s Hydrogen, designed to reduce Minecraft’s memory use, particularly in heavily modded setups. It uses more compact data structures for block states and properties, which can save memory when mods add complex blocks. On the client, Helium deduplicates geometry used by multipart block models and simplifies block model predicates to avoid unnecessary chaining. It also fixes chunk-loading memory leaks that could leave a chunk’s on-disk NBT data in memory after loading. The mod can run on either the client or the server without needing to be installed on both, though the source describes the server-side benefits as small.

    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 1.16.5.

    Changes the game's code in 4 areas: Rendering and graphicsChanges 10 game code files in this area: drawing mobs, items, particles and textures on screen., Chunk loading and storageChanges 2 game code files in this area: how the game loads, tracks, saves and unloads chunks., World generationChanges 1 game code file in this area: terrain, biomes and structures made when new land is created. and Game coreChanges 1 game code file in this area: the main loop, lighting and other code the whole game uses..

    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
    SulfuricEAI Improvements: Performance TuningABlueprintAMagnesiumELazy DataFixerUpper(LazyDFU) [FORGE]C

    Details

    Creator
    someoneelsewastaken
    License
    Not known
    Downloads
    66K
    Created
    14 Nov 2021
    Official page
    CurseForge

    Security

    No harmful code found

    It has no file for a recent Minecraft version. This is about its files for Minecraft 1.16.5.

    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 · The latest file 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.
      1 latest file. It is not for a recent Minecraft version, so the answer above is about it. 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 1.16.5.

    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 · Its one file 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 its one file, for Minecraft 1.16.5. 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 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.
    • 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
      38 code files read

    Compatibility

    See the file in Releases
    Forge
    1.161.191.2126.1

    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.

    Modpacks using this project

    Find modpacks with it

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

    ModpackDownloadsLast version with it
    TownCraft441K downloadslast version with it 8 Sep 2022Vanilla Create Exploration65K downloadslast version with it 8 Jan 2022JoJo's Cube Adventure31K downloadslast version with it 2 May 2022Mystic's Monstrosity - Greedy Edition30K downloadslast version with it 3 Dec 2023zombie city survival15K downloadslast version with it 27 May 2022Sus Craft7.7K downloadslast version with it 25 Nov 2021Cobblemon - Industrial - Magico - Servidor Brasileiro (BR) [ONLINE] - [TechCraftBrasil + Cobblemon]7.2K downloadslast version with it 4 Mar 2023Blood N Wine 26.3K downloadslast version with it 18 Apr 2023CasmoCraft- CC15.1K downloadslast version with it 25 Nov 2023Dragon.Castle.Chicken.Duck4.8K downloadslast version with it 17 Nov 2021
    1 to 10 of 30123

    Often in the same modpacks

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

    ProjectTypeShareGrade
    SulfuricEModin 81% of the modpacks with HeIiumAI Improvements: Performance TuningAModin 76% of the modpacks with HeIiumBlueprintAModin 74% of the modpacks with HeIiumMagnesiumEModin 70% of the modpacks with HeIiumLazy DataFixerUpper(LazyDFU) [FORGE]CModin 70% of the modpacks with HeIiumYUNG's Better CavesAModin 69% of the modpacks with HeIiumSmooth Boot (Forge)DModin 67% of the modpacks with HeIiumSodium ExtrasCModin 67% of the modpacks with HeIiumBetter Fps - Render DistanceBModin 63% of the modpacks with HeIiumSodium Dynamic LightsCModin 63% of the modpacks with HeIium
    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
    1.16.5·Forge1.01.0 · helium-1.0.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.

    1 release

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.16.5The latest file for its Minecraft version and loader·Forge1.01.0 · helium-1.0.jarBeta·14 Nov 2021PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Beta · 69.7 KB