Skip to content
BrowseScan your modsScan

    No project matches this search.

    2,060,121 files checkedFiles from Modrinth and CurseForge we downloaded and checked. Counted on 25 Oct 2026.641,511 files with their code readFiles whose code we turned back into readable code and read, in an isolated environment. Counted on 25 Oct 2026.269,682 projects gradedProjects with a letter from A to F. Counted on 25 Oct 2026.
    How it worksMalware we foundWhat's newAPIAboutPrivacyTermsContact

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

    Flopper

    Mod

    A hopper for transferring fluids.

    Download

    Files come from Modrinth and CurseForge servers.

    flopper-26.3-fabric-1.1.9-257.jar Beta

    Released 21 Sep 2026 · 61.0 KB

    Passed: our checks found nothing harmful in this file.

    Download

    Required to run

    • Cyclops CoreAMinecraft 26.3 · Fabric (release 1.30.0-1196)
    A99/ 100
    Security
    Passed
    Privacy
    None found
    Runs on
    Client and server
    Loaders
    Fabric, Forge, NeoForge, Quilt
    Minecraft versions
    Up to 26.3
    • OverviewA
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityUp to 26.3
    • ModpacksIn 540
    • ReleasesLatest 21 Sep
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade A

    How grades work

    Strengths

    • Security checks passed
    • Regular releases for the newest Minecraft versions
    • Stable releases
    • Public source code and issue tracker
    • Widely used

    Points lost

    No points lost.

    All 11 criteria

    • Maintenance

      Full points27 / 27
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.5 weeks ago (21 Sep 2026) 12 / 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.26.3 on Forge, NeoForge, Fabric and Quilt (latest) 9 / 9
      Regular releasesIn how many of the last 24 months a new file came out. Full points at 8 months.Releases in 19 of the last 24 months 6 / 6

    • Stability

      Full points22 / 22
      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.39 of the 376 modpacks with two or more versions removed it in a later one (10%) 10 / 10
      Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.No quick fix in 2 years 7 / 7
      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 points10 / 10
      Source codeWhether the project page links to its source code, so anyone can read what it does.GitHub · CyclopsMC/Flopper 7 / 7
      Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.GitHub issues · CyclopsMC/Flopper 3 / 3

    • Popularity

      Full points4 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.8,836,177 4 / 4

    • Track record

      Full points8 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.8.6 years, 290 releases 8 / 8

    • Security

      Passed
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in all 34 latest files for recent Minecraft versions. See Security
    Total99 / 100

    70.9 of the 71 points that apply = 99.9, so 99 out of 100: only a project that lost no point gets 100. The points above are rounded to whole numbers.

    Images

    • Fluid Rendering
    • Recipe
    • Better bounding boxes
    • Disable using redstone
    • Flopper features

    About

    Flopper adds an early-game fluid hopper for moving fluids between tanks and the world, bringing hopper-like transfer to fluid handling. It draws fluid from above and sends it toward its target side, preferring tanks when both tank and world interactions are possible; redstone can disable it. The block has no GUI: right-click to view its contents or insert fluid from a tank item, and shift-right-click to extract fluid; its contents can also be rendered visibly. Configurable capacity, transfer rates, cooldowns, world interactions, fluid rendering, and related interaction behavior let players adjust how the Flopper works.

    Written from Modrinth . How we write it

    In-game changes

    Changes the game's code in 1 area: PlayerChanges 3 game code files in this area: your character: movement, abilities, hunger and controls..

    Adds:

    • 1 recipe

    Counted from the files of the mod. Content made only in its code is not counted.

    Keeps all of vanilla Minecraft's textures, models and sounds.

    Details

    Creator
    rubensworks
    License
    MIT License
    Downloads
    8.8M
    Created
    20 Mar 2018
    Official pages
    Modrinth , CurseForge
    Links
    Source code , Issues , Discord

    Security

    No harmful code found

    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 Forge 1.20.1. See Privacy
    Creates settings files
    The mod keeps its settings in the config folder of your game, where you can change or delete them. Only in its files for Forge 1.20.1.

    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 34 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.
      47 latest files: the newest file for each Minecraft version and loader. The answer above is about the 34 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.
      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 34 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 34 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 that AI was used to make it

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

    One weak clue: a branch is named like those Claude Code creates. It does not show that the tool was used.

    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 · 6 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.
      Weak signA branch name only. It does not show that the tool was used.: A branch named like those Claude Code creates claude/minecraft-26-3-update-xr1cny
    • 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
      40 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
      6 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
      26 code files read

    Compatibility

    See all 290 files
    Fabric
    NeoForge
    Forge
    Quilt
    1.121.151.171.2026.1

    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.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.
    Cyclops CoreA
    OptionalProjects it can work with but does not need. The author lists them.
    Forge Config API Porton FabricA
    IncludesProjects packed inside its files.Nothing
    LanguagesThe languages the text in the game is available in, from the language files of its latest files we checked. A language file can translate only part of the text.English, 简体中文, Русский and
    Speed of updatesHow fast it gets a file for new Minecraft versions, on average, compared with similar projects. Not part of the grade.Faster than most mods. On average, it gets a file 18 days after a new Minecraft version comes out. Measured on the last 6 Minecraft versions.

    Modpacks using this project

    Find modpacks with it
    Modpacks that released a new version with this project, each month
    30150
    Oct 2024: 24 modpacksNov 2024: 20 modpacksDec 2024: 21 modpacksJan 2025: 24 modpacksFeb 2025: 25 modpacksMar 2025: 26 modpacksApr 2025: 22 modpacksMay 2025: 26 modpacksJun 2025: 19 modpacksJul 2025: 23 modpacksAug 2025: 24 modpacksSep 2025: 13 modpacksOct 2025: 17 modpacksNov 2025: 21 modpacksDec 2025: 27 modpacksJan 2026: 26 modpacksFeb 2026: 23 modpacksMar 2026: 18 modpacksApr 2026: 19 modpacksMay 2026: 17 modpacksJun 2026: 20 modpacksJul 2026: 12 modpacksAug 2026: 11 modpacksSep 2026: 17 modpacks
    Oct 2024Oct 2025Sep 2026
    Modpacks that released a new version with this project, each month
    Oct 202424
    Nov 202420
    Dec 202421
    Jan 202524
    Feb 202525
    Mar 202526
    Apr 202522
    May 202526
    Jun 202519
    Jul 202523
    Aug 202524
    Sep 202513
    Oct 202517
    Nov 202521
    Dec 202527
    Jan 202626
    Feb 202623
    Mar 202618
    Apr 202619
    May 202617
    Jun 202620
    Jul 202612
    Aug 202611
    Sep 202617

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

    ModpackDownloadsLast version with it
    FTB OceanBlock 21.5M downloadslast version with it 24 Aug 2026World of Dragons (wod)1.3M downloadslast version with it 26 Dec 2025Volcano Block859K downloadslast version with it 2 Nov 2024All the Mods 5 - ATM5693K downloadslast version with it 10 Dec 2021All the Mods 4 - ATM4674K downloadslast version with it 2 Jul 2020Seaopolis494K downloadslast version with it 11 Sep 2026Techopolis 3494K downloadslast version with it 20 Oct 2026Ocean Outlast424K downloadslast version with it 9 Oct 2024FTB Evolution423K downloadslast version with it 12 Oct 2026Enigmatica 2: Expert - Extended315K downloadslast version with it 28 Sep 2026
    1 to 10 of 30123

    Often in the same modpacks

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

    ProjectTypeShareGrade
    Crafting TweaksAModin 61% of the modpacks with FlopperCooking for BlockheadsAModin 60% of the modpacks with FlopperElevatorModAModin 58% of the modpacks with FlopperTorchMasterAModin 54% of the modpacks with FlopperMekanism GeneratorsBModin 53% of the modpacks with FlopperBuilding GadgetsAModin 52% of the modpacks with FlopperImmersive EngineeringCModin 52% of the modpacks with FlopperRefined StorageBModin 52% of the modpacks with FlopperEnder Storage 1.8.+CModin 51% of the modpacks with FlopperIndustrial ForegoingAModin 51% of the modpacks with Flopper
    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
    26.3·Fabric, Quilt1.1.9-2571.1.9-257 · flopper-26.3-fabric-1.1.9-257.jarSends: None foundRequires:Cyclops CorePassedOur checks found nothing harmful in this file. Its code was read too.
    26.3·NeoForge1.1.9-2571.1.9-257 · flopper-26.3-neoforge-1.1.9-257.jarSends: None foundRequires:Cyclops CorePassedOur checks found nothing harmful in this file. Its code was read too.
    26.3·Forge1.1.9-2571.1.9-257 · flopper-26.3-forge-1.1.9-257.jarSends: None foundRequires:Cyclops CorePassedOur checks found nothing harmful in this file. Its code was read too.
    26.2·Fabric, Quilt1.1.9-2451.1.9-245 · flopper-26.2-fabric-1.1.9-245.jarSends: None foundRequires:Cyclops CorePassedOur checks found nothing harmful in this file. Its code was read too.
    26.2·NeoForge1.1.9-2451.1.9-245 · flopper-26.2-neoforge-1.1.9-245.jarSends: None foundRequires:Cyclops CorePassedOur checks found nothing harmful in this file. Its code was read too.
    26.2·Forge1.1.9-2451.1.9-245 · flopper-26.2-forge-1.1.9-245.jarSends: None foundRequires:Cyclops CorePassedOur checks found nothing harmful in this file. Its code was read too.
    26.1.2·Fabric, Quilt1.1.91.1.9 · flopper-26.1.2-fabric-1.1.9.jarSends: None foundRequires:Cyclops CorePassedOur checks found nothing harmful in this file. Its code was read too.
    26.1.2·NeoForge1.1.91.1.9 · flopper-26.1.2-neoforge-1.1.9.jarSends: None foundRequires:Cyclops CorePassedOur checks found nothing harmful in this file. Its code was read too.
    26.1.2·Forge1.1.91.1.9 · flopper-26.1.2-forge-1.1.9.jarSends: None foundRequires:Cyclops CorePassedOur checks found nothing harmful in this file. Its code was read too.
    26.1.1·Fabric, Quilt1.1.81.1.8 · flopper-26.1.1-fabric-1.1.8.jarSends: None foundRequires:Cyclops CorePassedOur checks found nothing harmful in this file. Its code was read too.
    1 to 10 of 4712345

    290 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    26.3The latest file for its Minecraft version and loader·NeoForge1.1.9-2571.1.9-257 · flopper-26.3-neoforge-1.1.9-257.jar (main file)Beta·21 Sep 2026PassedOur checks found nothing harmful in this file. Its code was read too. Same code on Modrinth and CurseForge.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 59.0 KB
    26.3The latest file for its Minecraft version and loader·Forge1.1.9-2571.1.9-257 · flopper-26.3-forge-1.1.9-257.jar (main file)Beta·21 Sep 2026PassedOur checks found nothing harmful in this file. Its code was read too. Same code on Modrinth and CurseForge.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 55.2 KB
    26.3The latest file for its Minecraft version and loader·Fabric, Quilt1.1.9-2571.1.9-257 · flopper-26.3-fabric-1.1.9-257.jar (main file)Beta·21 Sep 2026PassedOur checks found nothing harmful in this file. Its code was read too. Same code on Modrinth and CurseForge.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 61.0 KB
    26.3·Forge1.1.9-2561.1.9-256 · flopper-26.3-forge-1.1.9-256.jar (main file)Beta·20 Sep 2026PassedOur checks found nothing harmful in this file. Same code on Modrinth and CurseForge.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 55.2 KB
    26.3·Fabric, Quilt1.1.9-2561.1.9-256 · flopper-26.3-fabric-1.1.9-256.jar (main file)Beta·20 Sep 2026PassedOur checks found nothing harmful in this file. Same code on Modrinth and CurseForge.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 61.0 KB
    26.3·NeoForge1.1.9-2561.1.9-256 · flopper-26.3-neoforge-1.1.9-256.jar (main file)Beta·20 Sep 2026PassedOur checks found nothing harmful in this file. Same code on Modrinth and CurseForge.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 59.0 KB
    26.3·Forge1.1.9-2531.1.9-253 · flopper-26.3-forge-1.1.9-253.jar (main file)Beta·20 Sep 2026PassedOur checks found nothing harmful in this file. Same code on Modrinth and CurseForge.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 55.2 KB
    26.3·Fabric, Quilt1.1.9-2531.1.9-253 · flopper-26.3-fabric-1.1.9-253.jar (main file)Beta·20 Sep 2026PassedOur checks found nothing harmful in this file. Same code on Modrinth and CurseForge.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 61.0 KB
    26.3·NeoForge1.1.9-2531.1.9-253 · flopper-26.3-neoforge-1.1.9-253.jar (main file)Beta·20 Sep 2026PassedOur checks found nothing harmful in this file. Same code on Modrinth and CurseForge.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 59.0 KB
    26.3·Forge1.1.9-2501.1.9-250 · flopper-26.3-forge-1.1.9-250.jar (main file)Beta·20 Sep 2026PassedOur checks found nothing harmful in this file. Same code on Modrinth and CurseForge.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 55.2 KB
    26.3·Fabric, Quilt1.1.9-2501.1.9-250 · flopper-26.3-fabric-1.1.9-250.jar (main file)Beta·20 Sep 2026PassedOur checks found nothing harmful in this file. Same code on Modrinth and CurseForge.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 61.0 KB
    26.3·NeoForge1.1.9-2501.1.9-250 · flopper-26.3-neoforge-1.1.9-250.jar (main file)Beta·20 Sep 2026PassedOur checks found nothing harmful in this file. Same code on Modrinth and CurseForge.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 59.0 KB
    26.2The latest file for its Minecraft version and loader·NeoForge1.1.9-2451.1.9-245 · flopper-26.2-neoforge-1.1.9-245.jar (main file)Beta·18 Sep 2026PassedOur checks found nothing harmful in this file. Its code was read too. Same code on Modrinth and CurseForge.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 59.3 KB
    26.2The latest file for its Minecraft version and loader·Forge1.1.9-2451.1.9-245 · flopper-26.2-forge-1.1.9-245.jar (main file)Beta·18 Sep 2026PassedOur checks found nothing harmful in this file. Its code was read too. Same code on Modrinth and CurseForge.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 55.6 KB
    26.2The latest file for its Minecraft version and loader·Fabric, Quilt1.1.9-2451.1.9-245 · flopper-26.2-fabric-1.1.9-245.jar (main file)Beta·18 Sep 2026PassedOur checks found nothing harmful in this file. Its code was read too. Same code on Modrinth and CurseForge.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 61.5 KB
    26.1.2·Fabric, Quilt1.1.9-2441.1.9-244 · flopper-26.1.2-fabric-1.1.9-244.jar (main file)Beta·10 Sep 2026PassedOur checks found nothing harmful in this file. Same code on Modrinth and CurseForge.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 60.7 KB
    26.1.2·Forge1.1.9-2441.1.9-244 · flopper-26.1.2-forge-1.1.9-244.jar (main file)Beta·10 Sep 2026PassedOur checks found nothing harmful in this file. Same code on Modrinth and CurseForge.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 55.5 KB
    26.1.2·NeoForge1.1.9-2441.1.9-244 · flopper-26.1.2-neoforge-1.1.9-244.jar (main file)Beta·10 Sep 2026PassedOur checks found nothing harmful in this file. Same code on Modrinth and CurseForge.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 59.3 KB
    26.2·NeoForge1.1.9-2431.1.9-243 · flopper-26.2-neoforge-1.1.9-243.jar (main file)Beta·1 Sep 2026PassedOur checks found nothing harmful in this file. Same code on Modrinth and CurseForge.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 59.3 KB
    26.2·Forge1.1.9-2431.1.9-243 · flopper-26.2-forge-1.1.9-243.jar (main file)Beta·1 Sep 2026PassedOur checks found nothing harmful in this file. Same code on Modrinth and CurseForge.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 55.6 KB
    1 to 20 of 29012345…15