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    2,046,932 files checkedFiles from Modrinth and CurseForge we downloaded and checked. Counted on 24 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 24 Oct 2026.269,480 projects gradedProjects with a letter from A to F. Counted on 24 Oct 2026.
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    © 2026 ModgradeNot an official Minecraft product. Not approved by or associated with Mojang or Microsoft.

    FastMathFabric

    Mod

    This mod changes math to replicate OptiFine's Fast Math feature

    E26/ 100
    • OverviewE
    • SecurityPassed
    • PrivacyNot read yet
    • AINone found
    • CompatibilityUp to 1.18
    • ModpacksIn none
    • ReleasesLatest Dec 2021

    Download

    FastMathFabric-MC1.18-0.0.2.jar

    Released 8 Dec 2021 · 9.1 KB

    Passed: our checks found nothing harmful in this file.

    A newer beta from 8 Dec 2021 is in Releases.

    Download
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade E

    How grades work

    Strengths

    • Security checks passed
    • Stable releases

    Points lost

    • No release in 4.9 years−26 points
    • No file for a Minecraft version most modpacks use−9 points
    • No public issue tracker−3 points
    • Under 5 million downloads−2 points
    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 (8 Dec 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.1.18 on Fabric. About 4.8 years behind popular modding versions. Latest Minecraft: 26.3. Abandoned: no release for 4.8 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

      Full points5 / 5
      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.Not measured yet.
      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 of the 8 known conflicts count in the grade See the 8 known conflicts5 / 5

    • Transparency

      3 points lost7 / 10
      Source codeWhether the project page links to its source code, so anyone can read what it does.GitHub · FwuffyPetsOwO/FastMathFabric 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

      2 points lost2 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.965 2 / 4

    • Track record

      8 points lost0 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.5.0 years, 4 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
    Total26 / 100

    13.8 of the 54 points that apply = 26 out of 100. The points above are rounded to whole numbers.

    In-game changes

    It has no file for a recent Minecraft version. This is about its files for Minecraft 1.17.1 to 1.18.

    Changes the game's code in 1 area: 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.

    Details

    Creator
    FwuffyPetsOwO
    License
    Apache License 2.0
    Downloads
    965
    Created
    17 Oct 2021
    Official page
    Modrinth
    Links
    Source code

    Security

    No harmful code found

    It has no file for a recent Minecraft version. This is about its files for Minecraft 1.17.1 to 1.18.

    We checked its files without running them.

    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 20 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.
      Not read yet
    • 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 have not read its code yet

    It has no file for a recent Minecraft version. This is about its files for Minecraft 1.17.1 to 1.18.

    The file checks found no code that connects to the internet.

    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 · Code not read yet
    • 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.
      None yet. 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 texts, files and images and found none.

    We have not read its 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
      4 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
      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
      3 code files read

    Compatibility

    See all 4 files
    Fabric
    1.171.201.2126.1

    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.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.

    Known conflicts

    These projects do not work together with FastMathFabric: their authors or FastMathFabric's author say so. If you install both, the game can crash or some features can stop working. Some of them do the same job as FastMathFabric, so you only need one.

    ProjectTypeDownloadsDeclared by
    LithiumMod242.4M downloadsdeclared by FastMathFabricOptiFabricMod10.1M downloadsdeclared by FastMathFabricLegacy OptiFabricMod31K downloadsdeclared by FastMathFabricOptiLegacyMod25K downloadsdeclared by FastMathFabricOptiLithiumMod15K downloadsdeclared by FastMathFabricOptiBabricMod9K downloadsdeclared by FastMathFabricPyradium (Forge)Mod5K downloadsdeclared by FastMathFabricOptiLithium ReforgedMod397 downloadsdeclared by FastMathFabric

    Modpacks using this project

    No known modpack uses it.

    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
    1.18·Fabric0.0.20.0.2 · FastMathFabric-MC1.18-0.0.2.jarSends: Not read yetRequires:NothingPassedOur checks found nothing harmful in this file.
    1.17.1·Fabric0.0.10.0.1 · FastMathFabric-MC1.17-0.0.1.jarSends: Not read yetRequires:NothingPassedOur checks found nothing harmful in this file.

    4 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.18·Fabric0.20.2 · SmallAngleMathFabric-MC1.18-0.0.2.jar (first file)Beta·8 Dec 2021PassedOur checks found nothing harmful in this file.Open this file on ModrinthDownload · Beta · 8.8 KB
    1.18The latest file for its Minecraft version and loader·Fabric0.0.20.0.2 · FastMathFabric-MC1.18-0.0.2.jar (main file)·8 Dec 2021PassedOur checks found nothing harmful in this file.Open this file on ModrinthDownload · Stable · 9.1 KB
    1.17.1·Fabric0.0.10.0.1 · SmallAngleMathFabric-MC1.17-0.0.1.jar (first file)Beta·17 Oct 2021PassedOur checks found nothing harmful in this file.Open this file on ModrinthDownload · Beta · 8.7 KB
    1.17.1The latest file for its Minecraft version and loader·Fabric0.0.10.0.1 · FastMathFabric-MC1.17-0.0.1.jar (first file)·17 Oct 2021PassedOur checks found nothing harmful in this file.Open this file on ModrinthDownload · Stable · 9.0 KB