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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.
    How it worksMalware we foundAPIAboutPrivacyTermsContact

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

    Improved Cleanroom Relauncher

    Mod

    Automatically sets up Cleanroom and installs the Java it needs.

    D60/ 100
    • OverviewD
    • SecurityPassed
    • PrivacyGoes online
    • AINone found
    • CompatibilityMinecraft 1.12.2
    • ModpacksIn 29
    • ReleasesLatest 16 Mar

    Download

    !improved-relauncher-0.3.8.jar

    Released 16 Mar 2026 · 394.1 KB

    Passed: our checks found nothing harmful in this file.

    Download
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade D

    How grades work

    Strengths

    • Security checks passed

    Points lost

    • No release in 7 months−10 points
    • Many modpacks removed it−8 points
    • Releases in only 4 of the last 24 months−3 points
    • Releases replaced within 3 days to fix a problem−3 points
    • No public issue tracker−3 points
    • Under 5 million downloads−1 point
    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.7 months ago (16 Mar 2026) 6 / 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.1.12.2 on Forge. A version many modpacks still use. 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 4 of the last 24 months 3 / 6

    • Stability

      11 points lost11 / 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.10 of the 28 modpacks with two or more versions removed it in a later one (36%) See the 10 modpacks2 / 10
      Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.2 of its 9 releases in 2 years needed a quick fix (22%) See the 2 releases4 / 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

      3 points lost7 / 10
      Source codeWhether the project page links to its source code, so anyone can read what it does.GitHub · Bruv-Network/Improved-Cleanroom-Relauncher 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

      1 point lost3 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.33,383 3 / 4

    • Track record

      4 points lost4 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.14 months, 9 releases 4 / 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
    Total60 / 100

    42.7 of the 71 points that apply = 60 out of 100. The points above are rounded to whole numbers.

    About

    Improved Cleanroom Relauncher streamlines launching a Minecraft 1.12.2 instance with Cleanroom Loader, automating setup for modpack users and reducing the need for manual setup instructions. On first run, it can download and install Java for the system’s operating system and architecture, select the latest Cleanroom Loader release, and fetch the required libraries, with progress shown during setup. Java major version and distribution are configurable, including Adoptium or GraalVM, and changing the requested version triggers an automatic switch; users can also set a Java executable path or configure automatic Cleanroom updates on launch. Downloads support parallel transfers, resuming after interruption, retries, and integrity checks, while a client-side configuration interface is available when automatic setup fails.

    Written from Modrinth and the GitHub README . How we write it

    In-game changes

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

    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
    AlfheimCVintageFixAFugueAUniversal TweaksAStellarCoreA

    Details

    Creator
    Bruv Network
    License
    MIT License
    Downloads
    33K
    Created
    28 Aug 2025
    Official pages
    Modrinth , CurseForge
    Links
    Source code

    Security

    No harmful code found

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

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

    What it can do on your computer

    Uses folders outside the game
    It can read or write files outside your Minecraft folder, on the rest of your computer. Found: your user folder, application data and launcher files.
    Starts other programs
    It can start another program on your computer. It can start a Java program and read system or hardware information.
    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 2 web addresses. See Privacy
    Creates settings files
    The mod keeps its settings in the config folder of your game, where you can change or delete them. 1 file in your config folder.

    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
    • 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.
    • Uses folders outside the game
      Uses the system folder for application data.Reads launcher files.
    • Looked for, not foundWe looked for these in the file and did not find them.
      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 1.12.2.

    We read its code without running it: it contacts 3 web addresses 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 1.12.2. See each file in Releases
    • api.adoptium.net
      Downloads Java runtime download information. Downloads Java runtime asset information.Explained by AI (may be wrong)Explained by an AI from the code. May be wrong.
    • api.github.com
      Checks for a new version of the mod.
    • Address built while the game runsThe code builds this address while the game runs: it is not written in the file.
      Downloads library files used by the mod. Checks the sizes of library files before downloading them.Explained by AI (may be wrong)Explained by an AI from the code. May be wrong.
    • 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 description, files and images and found none.

    We have not read its changelogs and 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 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
      135 code files read

    Compatibility

    See all 9 files
    Forge
    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.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 5 Minecraft versions.

    Related projects

    Projects that need Improved Cleanroom Relauncher to work.

    ProjectTypeDownloadsGrade
    Beta GraphicsBMod2.1K downloadsIris’s Plushie ModEMod1K downloads

    Modpacks using this project

    Find modpacks with it

    Modpacks that include Improved Cleanroom Relauncher in at least one of their versions, most downloaded first.

    ModpackDownloadsLast version with it
    Optimization482K downloadslast version with it 16 May 2026Photon Optimization53K downloadslast version with it 15 Apr 2026BeanPack: Invincible21K downloadslast version with it 7 Dec 2025Framework Protocol Resurgence(Protocol Alpha)17K downloadslast version with it 5 Jun 2026Plutonium15K downloadslast version with it 10 Apr 2026BelovodieCraft13K downloadslast version with it 23 Mar 2026Parasitus10K downloadslast version with it 19 Apr 2026MangoPlus3.9K downloadslast version with it 15 Jun 2026Magic: Superlative2.2K downloadslast version with it 13 Jun 2026Spice Of Life2.2K downloadslast version with it 14 Nov 2025
    1 to 10 of 29123

    Often in the same modpacks

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

    ProjectTypeShareGrade
    AlfheimCModin 86% of the modpacks with Improved Cleanroom RelauncherVintageFixAModin 86% of the modpacks with Improved Cleanroom RelauncherFugueAModin 83% of the modpacks with Improved Cleanroom RelauncherUniversal TweaksAModin 83% of the modpacks with Improved Cleanroom RelauncherStellarCoreAModin 66% of the modpacks with Improved Cleanroom RelauncherNothiriumCModin 66% of the modpacks with Improved Cleanroom RelauncherReach FixCModin 62% of the modpacks with Improved Cleanroom RelauncherChiselCModin 62% of the modpacks with Improved Cleanroom RelauncherNaughthiriumBModin 59% of the modpacks with Improved Cleanroom RelauncherFixerooAModin 59% of the modpacks with Improved Cleanroom Relauncher
    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
    1.12.2·Forge0.3.80.3.8 · !improved-relauncher-0.3.8.jarSends: Nothing about youRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.

    9 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.12.2The latest file for its Minecraft version and loader·Forge0.3.80.3.8 · !improved-relauncher-0.3.8.jar (main file)·16 Mar 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 394.1 KB
    1.12.2·Forge0.3.70.3.7 · !improved-relauncher-0.3.7.jar (main file)·4 Mar 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 393.7 KB
    1.12.2·Forge0.3.60.3.6 · !improved-relauncher-0.3.6.jar (main file)·20 Oct 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 392.8 KB
    1.12.2·Forge0.3.50.3.5 · !improved-relauncher-0.3.5.jar (main file)·9 Oct 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 392.5 KB
    1.12.2·Forge0.3.40.3.4 · !improved-relauncher-0.3.4.jar (main file)·8 Oct 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 392.4 KB
    1.12.2·Forge0.3.30.3.3 · !improved-relauncher-0.3.3.jar (main file)·8 Oct 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 391.6 KB
    1.12.2·Forge0.3.20.3.2 · !improved-relauncher-0.3.2.jar (main file)·4 Oct 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 390.6 KB
    1.12.2·Forge0.3.10.3.1 · !improved-relauncher-0.3.1.jar (main file)·16 Sep 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 370.1 KB
    1.12.2·Forge0.3.00.3.0 · !improved-relauncher-0.3.0.jar (main file)·28 Aug 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 353.6 KB

    Quick fixes

    In the last 2 years, 2 releases needed a quick fix: a new release within 3 days to fix a problem. This lowers the grade by 3 points.

    See them, newest first

    Quick fixesReleases followed within 3 days by a new release that fixes a problem in them.2

    • !improved-relauncher-0.3.5.jar9 Oct 2025Hotfix 2: Electric Boogaloo Fixed - MacOS Architecture…
    • !improved-relauncher-0.3.4.jar8 Oct 2025Hotfix Added - Architecture Validation (If your configured…