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

    JJ Coin

    Mod

    Coins for trading, with a secure coffer to store them.

    F22/ 100
    • OverviewF
    • SecurityPassed
    • PrivacyGoes online
    • AINone found
    • CompatibilityUp to 1.12.2
    • ModpacksIn 31
    • ReleasesLatest Apr 2020

    Download

    JJ Coin 1.12-1.12.2-v1.0.5.jar

    Released 14 Apr 2020 · 163.1 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 6.5 years−26 points
    • Newest file is for 1.12.2, older than the versions mods are made for now−9 points
    • No source code link−7 points
    • Many modpacks removed it−4 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.6.5 years ago (14 Apr 2020) 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 6.5 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

      4 points lost11 / 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.7 of the 29 modpacks with two or more versions removed it in a later one (24%) See the 7 modpacks6 / 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.275,028 3 / 4

    • Track record

      8 points lost0 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.8.4 years, 3 releases 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
    Total22 / 100

    13.5 of the 61 points that apply = 22 out of 100. The points above are rounded to whole numbers.

    About

    JJ Coin adds a four-denomination currency for Minecraft economies: copper coins are worth 1, silver 10, gold 100, and diamond 1,000. Players can store coins in a special coffer chest that accepts only coins, displays the deposited total, and shows a player's coins when they open a coffer, including one owned by another player. Coffers are protected from explosions and cannot be broken by other players; commands can report a coffer's balance or coordinates, or another player's coin total.

    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 1.12 to 1.12.2.

    Adds 1 block: Coffer; 4 items: Copper Coin, Diamond Coin, Gold Coin and Silver Coin; 3 recipes.

    Counted from the names and data files in the mod, so the list may not be complete.

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

    Often used with it

    See all 30
    ChiselCBetterFpsCFoamFixCInventory Tweaks [1.12 only]-RusticD

    Details

    Creator
    JdiJack_
    License
    Not known
    Downloads
    275K
    Created
    11 Jun 2018
    Official page
    CurseForge

    Security

    No harmful code found

    It has no file for a recent Minecraft version. This is about its files for Minecraft 1.12 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. It contacts 1 web address. 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 about you

    It has no file for a recent Minecraft version. This is about its files for Minecraft 1.12 to 1.12.2.

    We read its code without running it: it contacts 1 web address while you play.

    Like any connection, each address it contacts sees your IP address.

    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 1.12 to 1.12.2. See each file in Releases
    • api.mojang.com
      Talks to an online service the mod works with.

    AI

    No sign that AI was used to make it

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

    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
      2 of 6 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
      11 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 3 files
    Forge
    1.121.151.171.2026.1

    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

    31 modpacks include JJ Coin in at least one of their versions. Here are the 30 most downloaded.

    ModpackDownloadsLast version with it
    Engineer's Life759K downloadslast version with it 7 Nov 2023Less Tech More Dragon [RETIRED]94K downloadslast version with it 30 Nov 2019Flan's Mod Factions Pack25K downloadslast version with it 29 May 2021MC SAO22K downloadslast version with it 16 Mar 2021Set Sail7.5K downloadslast version with it 31 Jul 2019The Cyborg Runner6.8K downloadslast version with it 3 Sep 2022Capitalia6.6K downloadslast version with it 23 Jun 2022WW2 Modpack4.5K downloadslast version with it 11 Jun 2021StyxCraft2.2K downloadslast version with it 30 Nov 2019Umbra Arcana1.9K downloadslast version with it 1 Nov 2019
    1 to 10 of 30123

    Often in the same modpacks

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

    ProjectTypeShareGrade
    ChiselCModin 68% of the modpacks with JJ CoinBetterFpsCModin 61% of the modpacks with JJ CoinFoamFixCModin 58% of the modpacks with JJ CoinInventory Tweaks [1.12 only]-Modin 52% of the modpacks with JJ CoinRusticDModin 48% of the modpacks with JJ CoinRoguelike DungeonsAModin 48% of the modpacks with JJ CoinPams HarvestCraftDModin 48% of the modpacks with JJ CoinCustom NPCsDModin 45% of the modpacks with JJ CoinBiblioCraftDModin 45% of the modpacks with JJ CoinVanillaFixDModin 42% of the modpacks with JJ Coin
    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 stated1.0.51.0.5 · JJ Coin 1.12-1.12.2-v1.0.5.jarSends: Nothing about youRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.

    3 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.12 to 1.12.21.12 to 1.12.2The latest file for its Minecraft version and loader·Forge1.0.51.0.5 · JJ Coin 1.12-1.12.2-v1.0.5.jar·14 Apr 2020PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 163.1 KB
    1.12 to 1.12.21.12 to 1.12.2·Forge1.0.41.0.4 · JJ Coin 1.12-1.12.2-v1.0.4.jar·28 Mar 2020PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 153.3 KB
    1.12 to 1.12.21.12 to 1.12.2·Forge1.0.01.0.0 · JJ Coin 1.12-1.12.2-v1.0.0.jar·11 Jun 2018PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 145.1 KB