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    2,073,003 files checkedFiles from Modrinth and CurseForge we downloaded and checked. Counted on 27 Oct 2026.649,484 files with their code readFiles whose code we turned back into readable code and read, in an isolated environment. Counted on 27 Oct 2026.270,354 projects gradedProjects with a letter from A to F. Counted on 27 Oct 2026.

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

    Mapper Base

    Mod

    A simple library mod that includes all common content shared by my other mods.

    Download

    Files come from Modrinth and CurseForge servers.

    mapperbase-1.21.1-7.1.1.0.jar

    Released 23 May 2025 · 218.7 KB

    Passed: our checks found nothing harmful in this file.

    Download
    C79/ 100
    Security
    Passed
    Privacy
    None found
    Runs on
    Client and server
    Loaders
    Forge, NeoForge
    Minecraft versions
    Up to 1.21.1
    • OverviewC
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityUp to 1.21.1
    • ModpacksIn 963
    • ReleasesLatest May 2025
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade C

    How grades work

    Strengths

    • Security checks passed
    • Stable releases
    • Public source code and issue tracker
    • Widely used

    Points lost

    • No release in 17 months−9 points
    • Releases in only 3 of the last 24 months−4 points

    C at most after 12 months without a release.

    All 11 criteria
    • Maintenance

      9 points lost18 / 27
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.17 months ago (6 Jun 2025). 63 modpacks released in the last 6 months still include it, so it keeps 53% of these points. The grade cannot go above C after 12 months without a release. 7 / 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 NeoForge, 1.20.1 on Forge. 65% of the 993 popular NeoForge 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.Releases in 3 of the last 24 months 2 / 6
    • 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.30 of the 356 modpacks with two or more versions removed it in a later one (8%) 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

      Full points10 / 10
      Source codeWhether the project page links to its source code, so anyone can read what it does.GitHub · MapperTV/mapperbase 7 / 7
      Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.GitHub issues · MapperTV/mapperbase 3 / 3
    • Popularity

      Full points4 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.12,207,077 4 / 4
    • Track record

      4 points lost4 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.6.6 years, 18 releases 4 / 8
    • Security

      Passed
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in both latest files for recent Minecraft versions. See Security
    Total79 / 100

    50.8 of the 64 points that apply = 79 out of 100. The points above are rounded to whole numbers.

    In-game changes

    Does not change the game's code directly.

    Adds:

    • 9 blocksRaw Steel Block, Steel Block, Steel Button, Steel Fence, Steel Fence Gate, Steel Pressure Plate, Steel Slab, Steel Stairs and 1 more. Blocks with their own name, checked against the block files.
    • 21 itemsFlatter Hammer, Iron Plate, Iron Rod, Pig Iron Chunk, Raw Steel, Reinforced Flatter Hammer, Rivet, Steel Axe and 13 more. Items with their own name, not counting blocks, checked against the item files.
    • 40 recipes
    • 1 loot table

    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
    Mapper
    License
    MIT License
    Downloads
    12.2M
    Created
    15 Mar 2020
    Official pages
    Modrinth , CurseForge
    Links
    Source code , Issues , Wiki

    Security

    No harmful code found

    We checked its files and read their code, without running it.

    What it can do on your computer

    Creates settings files
    The mod keeps its settings in the config folder of your game, where you can change or delete 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 15 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.
      11 latest files: the newest file for each Minecraft version and loader. The answer above is about the 2 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 · Both 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 both 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.

    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 README.
      Nothing found
    • 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
      9 of 38 changelogs read
    • Its filesCredits and texts in the files you download that name an AI tool.
      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
      29 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
      60 code files read

    Compatibility

    See all 18 files
    NeoForge
    Forge
    1.151.171.201.2126.1

    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.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
    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.It has no file for Minecraft versions newer than 1.21.1. Many recently updated mods still support 1.21.1.

    Related projects

    Projects that need Mapper Base to work.

    ProjectTypeDownloadsGrade
    EmbellishCraftCMod11.5M downloadsRoad StuffEMod890K downloadsEmbellishCraft: Biomes O'Plenty AddonEMod326K downloads

    Modpacks using this project

    Find modpacks with it
    Modpacks that released a new version with this project, each month
    30150
    Oct 2024: 11 modpacksNov 2024: 13 modpacksDec 2024: 12 modpacksJan 2025: 11 modpacksFeb 2025: 17 modpacksMar 2025: 13 modpacksApr 2025: 15 modpacksMay 2025: 24 modpacksJun 2025: 20 modpacksJul 2025: 19 modpacksAug 2025: 15 modpacksSep 2025: 11 modpacksOct 2025: 14 modpacksNov 2025: 11 modpacksDec 2025: 21 modpacksJan 2026: 16 modpacksFeb 2026: 15 modpacksMar 2026: 15 modpacksApr 2026: 18 modpacksMay 2026: 16 modpacksJun 2026: 20 modpacksJul 2026: 20 modpacksAug 2026: 14 modpacksSep 2026: 10 modpacks
    Oct 2024Oct 2025Sep 2026
    Modpacks that released a new version with this project, each month
    Oct 202411
    Nov 202413
    Dec 202412
    Jan 202511
    Feb 202517
    Mar 202513
    Apr 202515
    May 202524
    Jun 202520
    Jul 202519
    Aug 202515
    Sep 202511
    Oct 202514
    Nov 202511
    Dec 202521
    Jan 202616
    Feb 202615
    Mar 202615
    Apr 202618
    May 202616
    Jun 202620
    Jul 202620
    Aug 202614
    Sep 202610

    963 modpacks include Mapper Base in at least one of their versions. Here are the 30 most downloaded.

    ModpackDownloadsLast version with it
    DeceasedCraft - Urban Zombie Apocalypse9.8M downloadslast version with it 17 Jul 2026Cursed Walking - A Modern Zombie Apocalypse8.7M downloadslast version with it 23 May 2024Valhelsia 22.8M downloadslast version with it 11 Dec 2021Enigmatica 6 - E6 - 1.16.51.6M downloadslast version with it 20 May 2021Craft to Exile [Dissonance]908K downloadslast version with it 19 Aug 2023Life in the village 2859K downloadslast version with it 6 Dec 2022Ragnamod VI614K downloadslast version with it 20 Dec 2022TownCraft441K downloadslast version with it 8 Sep 2022Engineer's Life 2297K downloadslast version with it 26 Dec 2023Modern City Modpack209K downloadslast version with it 8 Jun 2021
    1 to 10 of 30123

    Often in the same modpacks

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

    ProjectTypeShareGrade
    Macaw's RoofsAModin 63% of the modpacks with Mapper BaseMacaw's FurnitureBModin 60% of the modpacks with Mapper BaseBlueprintAModin 60% of the modpacks with Mapper BaseImmersive EngineeringCModin 58% of the modpacks with Mapper BaseDecorative BlocksCModin 55% of the modpacks with Mapper BaseCooking for BlockheadsAModin 55% of the modpacks with Mapper BaseFastWorkbenchBModin 50% of the modpacks with Mapper BaseMacaw's TrapdoorsAModin 50% of the modpacks with Mapper BaseFastFurnaceBModin 49% of the modpacks with Mapper BasePam's HarvestCraft 2: Food CoreAModin 47% of the modpacks with Mapper Base
    1 to 10 of 29123

    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·NeoForge7.1.1.07.1.1.0 · mapperbase-1.21.1-7.1.1.0.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.1·Forge6.0.0.06.0.0.0 · mapperbase-1.20.1-6.0.0.0.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    Older Minecraft versions
    1.19.2·Forge5.0.0.25.0.0.2 · mapperbase-1.19.2-5.0.0.2.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.18.2·Forge4.0.1.04.0.1.0 · mapperbase-1.18.2-4.0.1.0.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.18.1·Forge4.0.0.14.0.0.1 · mapperbase-1.18.1-4.0.0.1.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.17.1·Forge3.0.0.03.0.0.0 · mapperbase-1.17.1-3.0.0.0.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.16.5·Forge2.4.0.02.4.0.0 · mapperbase-1.16.5-2.4.0.0.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.16.4·Forge2.3.0.02.3.0.0 · mapperbase-1.16.4-2.3.0.0.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.16.3·Forge2.2.0.02.2.0.0 · mapperbase-1.16.3-2.2.0.0.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.16.1·Forge2.0.0.02.0.0.0 · mapperbase-1.16.1-2.0.0.0.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1 to 10 of 1112

    18 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.21.1The latest file for its Minecraft version and loader·NeoForge7.1.1.07.1.1.0 · mapperbase-1.21.1-7.1.1.0.jar (main file, 2 other files in this version not shown)·23 May 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 218.7 KB
    1.21.1·NeoForge7.0.0.07.0.0.0 · mapperbase-1.21.1-7.0.0.0.jar (main file)·15 Apr 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 210.8 KB
    1.20.1The latest file for its Minecraft version and loader·Forge6.0.0.06.0.0.0 · mapperbase-1.20.1-6.0.0.0.jar (main file)·20 Oct 2024PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 162.4 KB
    1.19.2The latest file for its Minecraft version and loader·Forge5.0.0.25.0.0.2 · mapperbase-1.19.2-5.0.0.2.jar (first file)·6 May 2023PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 163.6 KB
    1.18.2The latest file for its Minecraft version and loader·Forge4.0.1.04.0.1.0 · mapperbase-1.18.2-4.0.1.0.jar (first file)·26 Aug 2022PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 164.2 KB
    1.18.1The latest file for its Minecraft version and loader·Forge4.0.0.14.0.0.1 · mapperbase-1.18.1-4.0.0.1.jar (first file, 2 other files in this version not shown)·13 Mar 2022PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 164.7 KB
    1.18.1·Forge4.0.0.04.0.0.0 · mapperbase-1.18.1-4.0.0.0.jar (first file, 2 other files in this version not shown)·23 Jan 2022PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 164.4 KB
    1.17.1The latest file for its Minecraft version and loader·Forge3.0.0.03.0.0.0 · mapperbase-1.17.1-3.0.0.0.jar (first file, 2 other files in this version not shown)·16 Jan 2022PassedOur 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 · Stable · 165.4 KB
    1.16.5The latest file for its Minecraft version and loader·Forge2.4.0.02.4.0.0 · mapperbase-1.16.5-2.4.0.0.jar (first file, 2 other files in this version not shown)·13 Jun 2021PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 217.3 KB
    1.16.4 to 1.16.51.16.4 to 1.16.5The latest file for its Minecraft version and loader·Forge2.3.0.02.3.0.0 · mapperbase-1.16.4-2.3.0.0.jar (first file, 2 other files in this version not shown)·2 Dec 2020PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 216.7 KB
    1.16.3 to 1.16.41.16.3 to 1.16.4The latest file for its Minecraft version and loader·Forge2.2.0.02.2.0.0 · mapperbase-1.16.3-2.2.0.0.jar (first file, 2 other files in this version not shown)·29 Oct 2020PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 211.9 KB
    1.16.3·Forge2.1.0.12.1.0.1 · mapperbase-1.16.3-2.1.0.1.jar (first file, 2 other files in this version not shown)·7 Oct 2020PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 208.4 KB
    1.16.3·Forge2.1.0.02.1.0.0 · mapperbase-1.16.3-2.1.0.0.jar (first file, 2 other files in this version not shown)·4 Oct 2020PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 206.9 KB
    1.16.1The latest file for its Minecraft version and loader·Forge2.0.0.02.0.0.0 · mapperbase-1.16.1-2.0.0.0.jar (first file, 2 other files in this version not shown)·25 Aug 2020PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 211.5 KB
    1.15.2The latest file for its Minecraft version and loader·Forge1.1.1.01.1.1.0 · mapperbase-1.15.2-1.1.1.0.jar (first file, 2 other files in this version not shown)·24 Jun 2020PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 207.9 KB
    1.15.2·Forge1.1.0.01.1.0.0 · mapperbase-1.15.2-1.1.0.0.jar (first file, 2 other files in this version not shown)·25 Apr 2020PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 207.9 KB
    1.15.2·Forge1.0.0.11.0.0.1 · mapperbase-1.15.2-1.0.0.1.jar (first file, 2 other files in this version not shown)·1 Apr 2020PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 195.7 KB
    1.15.2·Forge1.0.0.01.0.0.0 · mapperbase-1.15.2-1.0.0.0.jar (first file, 2 other files in this version not shown)·15 Mar 2020PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 191.7 KB