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    2,046,932 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 2026.269,480 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.

    KnockbackSync

    Mod

    Fairer, more consistent knockback in PvP, even with a high ping.

    A98/ 100
    • OverviewA
    • SecurityPassed
    • PrivacySends data
    • AINone found
    • CompatibilityUp to 26.3
    • ModpacksIn 2
    • ReleasesLatest 18 Oct

    Download

    knockbacksync-fabric-1.3.6-dev-b143.jar Alpha

    Released 18 Oct 2026 · 8.7 MB

    Passed: our checks found nothing harmful in this file.

    Download
    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
    • Around for years

    Points lost

    • Under 5 million downloads−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.6 days ago (18 Oct 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 Fabric (latest) 9 / 9
      Regular releasesIn how many of the last 24 months a new file came out. Full points at 8 months.Releases in 15 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.1 of the 2 modpacks with two or more versions removed it in a later one (50%) 10 / 10
      Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.4 of its 52 releases in 2 years needed a quick fix (8%) 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 · Axionize/knockback-sync 7 / 7
      Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.GitHub issues · Axionize/knockback-sync 3 / 3

    • Popularity

      1 point lost3 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.77,770 3 / 4

    • Track record

      Full points8 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.2.0 years, 196 releases 8 / 8

    • Security

      Passed
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in all 9 latest files for recent Minecraft versions. See Security
    Total98 / 100

    69.9 of the 71 points that apply = 98 out of 100. The points above are rounded to whole numbers.

    About

    KnockbackSync is a server plugin for making PvP knockback more consistent across players with different network latency by adjusting server calculations to better match what would happen on the client. Server operators can configure a ping offset, check players’ ping and jitter, view player or global synchronization status, and toggle the feature for themselves, specific players, or the whole server.

    Written from Modrinth . How we write it

    In-game changes

    Changes the game's code in 4 areas, as a library other mods build on: Chunk loading and storageChanges 1 game code file in this area: how the game loads, tracks, saves and unloads chunks., PlayerChanges 1 game code file in this area: your character: movement, abilities, hunger and controls., Mobs and their behaviorChanges 1 game code file in this area: mobs, animals, villagers, projectiles and how they move and act. and Other game codeChanges 1 game code file in this area: game code that is not in one of the areas above..

    Libraries packed inside it change 9 more game code files: PacketEvents dependency for 1.14+, PacketEvents, PacketEvents Fabric (Intermediary Mappings) and 6 more.

    Adds no new blocks, items or other content.

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

    Details

    Creator
    Axionize
    License
    GNU General Public License v3.0 only
    Downloads
    78K
    Created
    8 Oct 2024
    Official page
    Modrinth
    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

    Uses folders outside the game
    It can read or write files outside your Minecraft folder, on the rest of your computer. Only in its files for Fabric 1.21 to 26.3; Paper 1.12.2 to 1.21.4.
    Connects to the internet
    It has code that can go online, for example to check for updates, load skins or send crash reports. Found in the mod's own code and in 4 libraries it includes. 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 Fabric 1.21 to 26.3; Paper 1.12.2 to 1.21.4.
    Can download and run new code
    The same part of the code can download data and run it as code. Auto-updaters do this, and so does malware. Only in its files for Paper 1.21.5 to 26.3.Not a Warning: we read its code and found no code downloaded over http or run without a check.

    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 9 latest files checked, last on 20 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.
      9 latest files: the newest file for each Minecraft version and loader. All 9 are 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.
      Other programs, updating itself, the webcam or microphone, an AI service.

    Privacy

    Sends usage statistics

    Sent to bstats.org.

    Only some of its files send usage statistics.

    We found this in its code, read without running it.

    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 9 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 9 files, for recent Minecraft versions. See each file in Releases
    • bstats.org
      Sends usage statistics.
      Usage statistics
    • api.github.com
      Checks for a new version of the mod.From a bundled library.
      Nothing about you
    • Address built while the game runsThe code builds this address while the game runs: it is not written in the file.
      Purpose not known.
      Nothing about you
    • Named in its filesA crash report or usage data service named in the files of the mod. The code does not show when or what is sent.
      The code names bStats, a service that receives usage data.
    • 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 texts, files and images and found none.

    We have not read its 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
      20 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
    • 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
      737 code files read

    Compatibility

    See all 196 files
    Fabric
    1.2126.126.2

    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.
    ServersThe server software its plugin build is made for.Also published as a plugin for Paper, Spigot, Bukkit, Purpur and Folia.
    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.
    Fabric APIin some filesA
    OptionalProjects it can work with but does not need. The author lists them.Nothing
    IncludesProjects packed inside its files.
    PacketEventson FabricA
    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 23 days after a new Minecraft version comes out. Measured on the last 6 Minecraft versions.

    Modpacks using this project

    Modpacks that include KnockbackSync in at least one of their versions, most downloaded first.

    ModpackDownloadsLast version with it
    Sky's PvP Modpack17K downloadslast version with it 24 Jan 2025Exium3.4K downloadslast version with it 27 Nov 2024

    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·Fabric1.3.6-dev-b1431.3.6-dev-b143 · knockbacksync-fabric-1.3.6-dev-b143.jarSends: Nothing about youRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.8 to 26.3·Paper, Spigot, Bukkit, Purpur, Folia1.3.6-dev-b1431.3.6-dev-b143 · knockbacksync-bukkit-1.3.6-dev-b143.jarSends: Usage dataRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    26.2·Fabric1.3.6-dev-b1421.3.6-dev-b142 · knockbacksync-fabric-1.3.6-dev-b142.jarSends: Nothing about youRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.11·Fabric1.3.6-dev-b1381.3.6-dev-b138 · knockbacksync-fabric-1.3.6-dev-b138.jarSends: Nothing about youRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.8 to 1.21.10·Fabric1.3.6-dev-b1301.3.6-dev-b130 · knockbacksync-fabric-1.3.6-dev-b130.jarSends: Nothing about youRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.5 to 1.21.7·Fabric1.3.6-dev-b1241.3.6-dev-b124 · knockbacksync-fabric-1.3.6-dev-b124.jarSends: Nothing about youRequires:Fabric APIPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.5 to 1.21.7·Paper, Spigot, Bukkit, Purpur, Folia1.3.6-dev-b1241.3.6-dev-b124 · knockbacksync-bukkit-1.3.6-dev-b124.jarSends: Usage dataRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21 to 1.21.4·Fabric1.3.6-dev-b1061.3.6-dev-b106 · knockbacksync-fabric-1.3.6-dev-b106.jarSends: Usage dataRequires:Fabric APIPassedOur checks found nothing harmful in this file. Its code was read too.
    1.12.2 to 1.21.4·Paper, Spigot, Bukkit, Purpur, Folia1.3.6-dev-b1061.3.6-dev-b106 · knockbacksync-bukkit-1.3.6-dev-b106.jarSends: Usage dataRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.

    196 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    26.3The latest file for its Minecraft version and loader·Fabric1.3.6-dev-b1431.3.6-dev-b143 · knockbacksync-fabric-1.3.6-dev-b143.jar (main file)Alpha·18 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Alpha · 8.7 MB
    1.12.2 to 26.31.12.2 to 26.3The latest file for its Minecraft version and loader·Loader not stated1.3.6-dev-b1431.3.6-dev-b143 · knockbacksync-bukkit-1.3.6-dev-b143.jar (main file, 1 other file in this version not shown)Alpha·18 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Alpha · 11.3 MB
    26.2The latest file for its Minecraft version and loader·Fabric1.3.6-dev-b1421.3.6-dev-b142 · knockbacksync-fabric-1.3.6-dev-b142.jar (main file)Alpha·22 Aug 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Alpha · 8.4 MB
    1.12.2 to 26.21.12.2 to 26.2·Loader not stated1.3.6-dev-b1421.3.6-dev-b142 · knockbacksync-bukkit-1.3.6-dev-b142.jar (main file, 1 other file in this version not shown)Alpha·22 Aug 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Alpha · 10.9 MB
    26.2·Fabric1.3.6-dev-b1411.3.6-dev-b141 · knockbacksync-fabric-1.3.6-dev-b141.jar (main file)Alpha·11 Jul 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Alpha · 8.3 MB
    1.12.2 to 26.21.12.2 to 26.2·Loader not stated1.3.6-dev-b1411.3.6-dev-b141 · knockbacksync-bukkit-1.3.6-dev-b141.jar (main file, 1 other file in this version not shown)Alpha·11 Jul 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthDownload · Alpha · 10.8 MB
    26.2·Fabric1.3.6-dev-b1401.3.6-dev-b140 · knockbacksync-fabric-1.3.6-dev-b140.jar (main file)Alpha·11 Jul 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthDownload · Alpha · 8.3 MB
    1.12.2 to 26.21.12.2 to 26.2·Loader not stated1.3.6-dev-b1401.3.6-dev-b140 · knockbacksync-bukkit-1.3.6-dev-b140.jar (main file, 1 other file in this version not shown)Alpha·11 Jul 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthDownload · Alpha · 10.6 MB
    26.2·Fabric1.3.6-dev-b1391.3.6-dev-b139 · knockbacksync-fabric-1.3.6-dev-b139.jar (main file)Alpha·11 Jul 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthDownload · Alpha · 8.1 MB
    1.12.2 to 26.21.12.2 to 26.2·Loader not stated1.3.6-dev-b1391.3.6-dev-b139 · knockbacksync-bukkit-1.3.6-dev-b139.jar (main file, 1 other file in this version not shown)Alpha·11 Jul 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthDownload · Alpha · 10.6 MB
    1.21.11The latest file for its Minecraft version and loader·Fabric1.3.6-dev-b1381.3.6-dev-b138 · knockbacksync-fabric-1.3.6-dev-b138.jar (main file)Alpha·24 May 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Alpha · 8.1 MB
    1.12.2 to 26.1.21.12.2 to 26.1.2·Loader not stated1.3.6-dev-b1381.3.6-dev-b138 · knockbacksync-bukkit-1.3.6-dev-b138.jar (main file, 1 other file in this version not shown)Alpha·24 May 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Alpha · 10.6 MB
    1.21.11·Fabric1.3.6-dev-b1371.3.6-dev-b137 · knockbacksync-fabric-1.3.6-dev-b137.jar (main file)Alpha·24 May 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthDownload · Alpha · 8.1 MB
    1.12.2 to 26.1.21.12.2 to 26.1.2·Loader not stated1.3.6-dev-b1371.3.6-dev-b137 · knockbacksync-bukkit-1.3.6-dev-b137.jar (main file, 1 other file in this version not shown)Alpha·24 May 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthDownload · Alpha · 10.6 MB
    1.21.11·Fabric1.3.6-dev-b1361.3.6-dev-b136 · knockbacksync-fabric-1.3.6-dev-b136.jar (main file)Alpha·2 May 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthDownload · Alpha · 8.1 MB
    1.12.2 to 26.1.21.12.2 to 26.1.2·Loader not stated1.3.6-dev-b1361.3.6-dev-b136 · knockbacksync-bukkit-1.3.6-dev-b136.jar (main file, 1 other file in this version not shown)Alpha·2 May 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthDownload · Alpha · 10.6 MB
    1.21.11·Fabric1.3.6-dev-b1331.3.6-dev-b133 · knockbacksync-fabric-1.3.6-dev-b133.jar (main file)Alpha·9 Apr 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthDownload · Alpha · 7.9 MB
    1.12.2 to 26.1.21.12.2 to 26.1.2·Loader not stated1.3.6-dev-b1331.3.6-dev-b133 · knockbacksync-bukkit-1.3.6-dev-b133.jar (main file, 1 other file in this version not shown)Alpha·9 Apr 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthDownload · Alpha · 10.3 MB
    1.21.11·Fabric1.3.6-dev-b1321.3.6-dev-b132 · knockbacksync-fabric-1.3.6-dev-b132.jar (main file)Alpha·18 Dec 2025PassedOur checks found nothing harmful in this file.Open this file on ModrinthDownload · Alpha · 7.9 MB
    1.12.2 to 1.21.111.12.2 to 1.21.11·Loader not stated1.3.6-dev-b1321.3.6-dev-b132 · knockbacksync-bukkit-1.3.6-dev-b132.jar (main file, 1 other file in this version not shown)Alpha·18 Dec 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Alpha · 10.3 MB
    1 to 20 of 19612345…10

    Quick fixes

    In the last 2 years, 4 releases needed a quick fix: a new release within 3 days to fix a problem. This counts in the grade, but it is too few to lose points.

    See them, newest first

    Quick fixesReleases followed within 3 days by a new release that fixes a problem in them.4

    • 1.3.6-dev-b9230 Nov 2024Once again fix IllegalStateException packetSentList/packet conflict…
    • 1.3.6-dev-b9330 Nov 2024Fix More folia compat issues
    • 1.3.6-dev-b851 Nov 2024Fix IndexOutofBoundsException that may occur in handler for…
    • 1.3.6-dev-b8429 Oct 2024Fix offground sync status message not showing correct…