Skip to content
BrowseScan your modsScan

    No project matches this search.

    2,024,305 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 2026.269,486 projects gradedProjects with a letter from A to F. Counted on 24 Oct 2026.
    How it worksMalware we foundAPIAboutPrivacyTermsContact

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

    Packet Fixer

    Mod

    Fixes packet errors and connection timeouts in modded worlds.

    A96/ 100
    • OverviewA
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityUp to 26.3
    • ModpacksIn 15,283
    • ReleasesLatest 20 Sep

    Download

    PacketFixer-fabric-3.3.6.jar

    Released 15 Sep 2026 · 31.7 KB

    Passed: our checks found nothing harmful in this file.

    Download
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade A

    How grades work

    Strengths

    • Regular releases for the newest Minecraft versions
    • Public source code and issue tracker
    • Widely used
    • Around for years

    Points lost

    • Releases replaced within 3 days to fix a problem−2 points
    • Some modpacks removed it−1 point
    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 (20 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 (latest) on Fabric, Quilt and NeoForge, 1.20.6 on Forge 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

      3 points lost19 / 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.46 of the 384 modpacks with two or more versions removed it in a later one (12%) See the 46 modpacks9 / 10
      Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.9 of its 44 releases in 2 years needed a quick fix (20%) See the 9 releases5 / 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 · TonimatasDEV/PacketFixer 7 / 7
      Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.GitHub issues · TonimatasDEV/PacketFixer 3 / 3

    • Popularity

      Full points4 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.145,301,562 4 / 4

    • Track record

      Full points8 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.4.0 years, 356 releases 8 / 8

    • Security

      Passed
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in all 10 latest files for recent Minecraft versions. See Security
    Total96 / 100

    67.9 of the 71 points that apply = 96 out of 100. The points above are rounded to whole numbers.

    About

    Packet Fixer increases packet-size limits to address packet, NBT, and connection-timeout errors, helping modpacks accommodate larger or more complex mod setups. It targets issues such as oversized NBT tags and payloads, packets exceeding protocol limits, chunk-packet memory allocation errors, and oversized VarInts or VarLongs. The mod is required on both the client and server.

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

    In-game changes

    Changes the game's code in 3 areas: Networking and multiplayerChanges 36 game code files in this area: connections, the server list and what is sent between your game and a server., Game coreChanges 2 game code files in this area: the main loop, lighting and other code the whole game uses. and Server and world logicChanges 1 game code file in this area: the world, commands, scoreboards, saved data and game rules..

    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
    Chat HeadsAsparkAAmendmentsABadOptimizationsAAttributeFixA

    Details

    Creator
    TonimatasDEV
    License
    MIT License
    Downloads
    145.3M
    Created
    17 Oct 2022
    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

    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 · All 17 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.
      17 latest files: the newest file for each Minecraft version and loader. The answer above is about the 10 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 · All 10 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 10 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, code history and pull requests 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 · 8 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.
      Nothing found
      256 commits read
    • Pull requestsThe recent pull requests, comments, topics and README of the GitHub repository.
      Nothing found
      8 pull requests read
    • 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
      38 of 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
      1 image read
    • Icon and galleryThe metadata of the original icon and gallery images of the project.
      Nothing found
      2 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
      29 code files read

    Compatibility

    See all 356 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.Works in your game or on a server. With both, you get extra features.
    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.Faster than most mods. On average, it gets a file 2 days after a new Minecraft version comes out. Measured on the last 6 Minecraft versions.

    Related projects

    Projects that need Packet Fixer to work.

    ProjectTypeDownloadsGrade
    Origins++CMod4.5M downloadsFSang18's HeroesCMod1.4M downloadsSatsu Iron man addon (Palladium)BMod685K downloadsInto The Omniverse: AlienEvo AddonPackDMod640K downloadsOmnitrix Evolution (Alienevo Addon)CMod532K downloadsNBC HeroesDMod453K downloadsAliens UntappedDMod362K downloadsAeroFlameDMod312K downloadsOmni-Evo: Aliens (Alienevo Addon)DMod292K downloadsGravestone: HerotimeCMod186K downloads
    1 to 10 of 361234

    Modpacks using this project

    Find modpacks with it
    Modpacks that released a new version with this project, each month
    2K1K0
    Oct 2024: 644 modpacksNov 2024: 707 modpacksDec 2024: 752 modpacksJan 2025: 850 modpacksFeb 2025: 806 modpacksMar 2025: 860 modpacksApr 2025: 938 modpacksMay 2025: 1,020 modpacksJun 2025: 1,025 modpacksJul 2025: 1,028 modpacksAug 2025: 1,073 modpacksSep 2025: 1,054 modpacksOct 2025: 1,103 modpacksNov 2025: 1,203 modpacksDec 2025: 1,343 modpacksJan 2026: 1,431 modpacksFeb 2026: 1,320 modpacksMar 2026: 1,322 modpacksApr 2026: 1,492 modpacksMay 2026: 1,571 modpacksJun 2026: 1,536 modpacksJul 2026: 1,622 modpacksAug 2026: 1,526 modpacksSep 2026: 1,470 modpacks
    Oct 2024Oct 2025Sep 2026
    Modpacks that released a new version with this project, each month
    Oct 2024644
    Nov 2024707
    Dec 2024752
    Jan 2025850
    Feb 2025806
    Mar 2025860
    Apr 2025938
    May 20251,020
    Jun 20251,025
    Jul 20251,028
    Aug 20251,073
    Sep 20251,054
    Oct 20251,103
    Nov 20251,203
    Dec 20251,343
    Jan 20261,431
    Feb 20261,320
    Mar 20261,322
    Apr 20261,492
    May 20261,571
    Jun 20261,536
    Jul 20261,622
    Aug 20261,526
    Sep 20261,470

    More modpacks put it in their new versions than a year ago: 1,536 a month now, 1,023 a year agoThe average of the last 6 months, compared with the same 6 months a year before. We say it only when the change is large..

    15,283 modpacks include Packet Fixer in at least one of their versions. Here are the 30 most downloaded.

    ModpackDownloadsLast version with it
    All the Mods 10 - ATM1022.5M downloadslast version with it 3 Jan 2025Better MC [FORGE] - BMC421.1M downloadslast version with it 9 Oct 2026Prominence™ II: Hasturian Era15.4M downloadslast version with it 23 Oct 2026All the Mods 9 - ATM913.7M downloadslast version with it 12 Oct 2025COBBLEVERSE - Pokemon Adventure [Cobblemon]12.6M downloadslast version with it 22 Jul 2026DeceasedCraft - Urban Zombie Apocalypse9.8M downloadslast version with it 17 Jul 2026Cursed Walking - A Modern Zombie Apocalypse8.7M downloadslast version with it 8 Aug 2026Better MC [FABRIC] - BMC25.9M downloadslast version with it 15 Jul 2026Better MC [FORGE] BMC15.8M downloadslast version with it 21 Jun 2025Cisco's Fantasy Medieval RPG [Ultimate]5.1M downloadslast version with it 1 Jun 2026
    1 to 10 of 30123

    Often in the same modpacks

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

    ProjectTypeShareGrade
    Chat HeadsAModin 48% of the modpacks with Packet FixersparkAModin 47% of the modpacks with Packet FixerAmendmentsAModin 45% of the modpacks with Packet FixerBadOptimizationsAModin 42% of the modpacks with Packet FixerAttributeFixAModin 42% of the modpacks with Packet FixerChippedCModin 42% of the modpacks with Packet FixerConnectivityAModin 41% of the modpacks with Packet FixerComplementary Shaders - UnboundAShaderin 41% of the modpacks with Packet FixerLithiumAModin 38% of the modpacks with Packet FixerHandcraftedCModin 37% of the modpacks with Packet Fixer
    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, Quilt3.3.63.3.6 · PacketFixer-fabric-3.3.6.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    26.3·NeoForge3.3.73.3.7 · PacketFixer-neoforge-3.3.7.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    26.2·Fabric, Quilt3.3.63.3.6 · PacketFixer-fabric-3.3.6.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    26.2·NeoForge3.3.63.3.6 · PacketFixer-neoforge-3.3.6.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    26.1 to 26.1.2·Fabric, Quilt3.3.53.3.5 · packetfixer-fabric-3.3.5-26.1.2.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    26.1 to 26.1.2·NeoForge3.3.43.3.4 · packetfixer-neoforge-3.3.4-26.1.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.9 to 1.21.11·Fabric, Quilt3.3.53.3.5 · packetfixer-fabric-3.3.5-1.21.11.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.9 to 1.21.11·NeoForge3.3.53.3.5 · packetfixer-neoforge-3.3.5-1.21.11.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.5 to 1.21.8·Fabric, NeoForge, Quilt3.3.13.3.1 · packetfixer-3.3.1-1.20.5-1.21.X-merged.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.18 to 1.20.4·Fabric, NeoForge, Forge, Quilt3.3.23.3.2 · packetfixer-3.3.2-1.18-1.20.4-merged.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1 to 10 of 1712

    356 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    26.3The latest file for its Minecraft version and loader·NeoForge3.3.73.3.7 · PacketFixer-neoforge-3.3.7.jar (main file)·20 Sep 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 30.8 KB
    26.3The latest file for its Minecraft version and loader·Fabric, Quilt3.3.63.3.6 · PacketFixer-fabric-3.3.6.jar (main file)·15 Sep 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 31.7 KB
    26.3·NeoForge3.3.63.3.6 · PacketFixer-neoforge-3.3.6.jar (main file)·15 Sep 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 30.4 KB
    26.2The latest file for its Minecraft version and loader·Fabric, Quilt3.3.63.3.6 · PacketFixer-fabric-3.3.6.jar (main file)·16 Jul 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 30.4 KB
    26.2The latest file for its Minecraft version and loader·NeoForge3.3.63.3.6 · PacketFixer-neoforge-3.3.6.jar (main file)·16 Jul 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 29.5 KB
    26.2·Fabric, Quilt3.3.53.3.5 · packetfixer-fabric-3.3.5-26.2.jar (main file)·17 Jun 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 29.8 KB
    26.2·NeoForge3.3.53.3.5 · packetfixer-neoforge-3.3.5-26.2.jar (main file)·17 Jun 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 28.5 KB
    1.21.9 to 1.21.111.21.9 to 1.21.11The latest file for its Minecraft version and loader·Fabric, Quilt3.3.53.3.5 · packetfixer-fabric-3.3.5-1.21.11.jar (main file)·22 Apr 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 30.5 KB
    1.21.9 to 1.21.111.21.9 to 1.21.11The latest file for its Minecraft version and loader·NeoForge3.3.53.3.5 · packetfixer-neoforge-3.3.5-1.21.11.jar (main file)·22 Apr 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 28.5 KB
    26.1 to 26.1.226.1 to 26.1.2The latest file for its Minecraft version and loader·Fabric, Quilt3.3.53.3.5 · packetfixer-fabric-3.3.5-26.1.2.jar (main file)·22 Apr 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 29.8 KB
    26.1.2·Fabric, Quilt3.3.43.3.4 · packetfixer-fabric-3.3.4-26.1.2.jar (main file)·10 Apr 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 29.8 KB
    1.18 to 1.20.41.18 to 1.20.4The latest file for its Minecraft version and loader·Fabric, Forge, NeoForge, Quilt3.3.23.3.2 · packetfixer-3.3.2-1.18-1.20.4-merged.jar (main file)·4 Apr 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 184.2 KB
    26.1.1·Fabric, Quilt3.3.43.3.4 · packetfixer-fabric-3.3.4-26.1.1.jar (main file)·4 Apr 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthNot on CurseForgeDownload · Stable · 29.8 KB
    26.1·Fabric3.3.43.3.4 · packetfixer-fabric-3.3.4-26.1.jar (main file)·25 Mar 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 29.8 KB
    26.1 to 26.1.226.1 to 26.1.2The latest file for its Minecraft version and loader·NeoForge3.3.43.3.4 · packetfixer-neoforge-3.3.4-26.1.jar (main file)·25 Mar 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 28.5 KB
    1.21.10·Fabric, Quilt3.3.43.3.4 · packetfixer-fabric-3.3.4-1.21.10.jar (main file)·24 Jan 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 30.5 KB
    1.21.10·NeoForge3.3.43.3.4 · packetfixer-neoforge-3.3.4-1.21.10.jar (main file)·24 Jan 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 28.4 KB
    1.21.11·Fabric, Quilt3.3.43.3.4 · packetfixer-fabric-3.3.4-1.21.11.jar (main file)·24 Jan 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 30.5 KB
    1.21.11·NeoForge3.3.43.3.4 · packetfixer-neoforge-3.3.4-1.21.11.jar (main file)·24 Jan 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 28.4 KB
    1.21.11·Fabric, Quilt3.3.33.3.3 · packetfixer-fabric-3.3.3-1.21.11.jar (main file)·1 Jan 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 30.5 KB
    1 to 20 of 35612345…18

    Quick fixes

    In the last 2 years, 9 releases needed a quick fix: a new release within 3 days to fix a problem. This lowers the grade by 2 points.

    See them, newest first

    Quick fixesReleases followed within 3 days by a new release that fixes a problem in them.9

    • Packet Fixer 3.1.417 Jul 2025Fixed: readUtf mixin compatibility problems…
    • Packet Fixer 3.1.22 Jul 2025Fixed: Packet too big (is X, should be less than…
    • Packet Fixer 3.1.022 Jun 2025Fixed: Config don't generate. Fixed…
    • Packet Fixer 2.1.21 Apr 2025Fixed: Spam 1 on console.
    • Packet Fixer 2.1.0 and 1 other release15 Feb 2025Fix more problems.
    • Packet Fixer 2.0.212 Feb 2025Fix compatibility problem with Krypton.
    • PacketFixer 2.0.111 Feb 2025Fix compatibility problems.
    • Packet Fixer 1.4.58 Feb 2025Fixed: Incompatibility problems with other mods…