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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.

    Server Performance - Smooth Chunk Save

    Mod

    Saves chunks steadily to reduce server lag and sudden slowdowns.

    A93/ 100
    • OverviewA
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityUp to 26.3
    • ModpacksIn 20,053
    • ReleasesLatest 19 Oct

    Download

    smoothchunk-fabric-26.1-4.4.jar

    Released 19 Oct 2026 · 16.6 KB

    Passed: our checks found nothing harmful in this file.

    Download

    Required to run

    • CupboardNo file for Minecraft 26.3 · FabricA
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade A

    How grades work

    Strengths

    • Public source code and issue tracker
    • Widely used
    • Around for years

    Points lost

    • Some modpacks removed it−3 points
    • Releases in only 5 of the last 24 months−2 points
    All 11 criteria

    • Maintenance

      2 points lost25 / 27
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.5 days ago (19 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 (latest) on Fabric and NeoForge, 1.20.1 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 5 of the last 24 months 4 / 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.70 of the 389 modpacks with two or more versions removed it in a later one (18%) See the 70 modpacks7 / 10
      Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.1 of its 8 releases in 2 years needed a quick fix (13%) 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 · someaddons/smoothchunksave 7 / 7
      Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.GitHub issues · someaddons/smoothchunksave 3 / 3

    • Popularity

      Full points4 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.124,921,101 4 / 4

    • Track record

      Full points8 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.4.7 years, 67 releases 8 / 8

    • Security

      Passed
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in all 6 latest files for recent Minecraft versions. See Security
    Total93 / 100

    66.1 of the 71 points that apply = 93 out of 100. The points above are rounded to whole numbers.

    About

    Smooth Chunk Save reduces server lag and save-related lag spikes by writing chunks continuously over time instead of saving too many at once. In a cited test with three players, chunk saving fell from about 11% of server tick time to 0.3%; the mod reports that performance gains can vary with conditions. Server operators can configure the interval between chunk saves and how many chunks may unload at once, and can enable debug logging. It runs on the server, including the integrated server used by single-player worlds.

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

    In-game changes

    Changes the game's code in 2 areas: Chunk loading and storageChanges 3 game code files in this area: how the game loads, tracks, saves and unloads chunks. and Mobs and their behaviorChanges 2 game code files in this area: mobs, animals, villagers, projectiles and how they move and act..

    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
    ConnectivityAAttributeFixAsparkAfix GPU memory leakAChunk SendingB

    Details

    Creator
    someaddon
    License
    Not known
    Downloads
    125.3M
    Created
    22 Feb 2022
    Official page
    CurseForge
    Links
    Source code

    Security

    No harmful code found

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

    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 22 latest files checked, last on 19 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.
      22 latest files: the newest file for each Minecraft version and loader. The answer above is about the 6 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
    • 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 6 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 6 files, for recent Minecraft versions. See each file in Releases

    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 · 7 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.
    • Code historyThe public code on GitHub: who made each change, credit lines such as "Co-authored-by", and its files.
      Nothing found
      26 commits read
    • Pull requestsThe recent pull requests, comments, topics and README of the GitHub repository.
      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
      26 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
    • Icon and galleryThe metadata of the original icon and gallery images of the project.
      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
      10 code files read

    Compatibility

    See all 67 files
    Fabric
    NeoForge
    Forge
    1.161.191.2126.1

    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.
    CupboardA
    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.Slower than most mods. On average, it gets a file 129 days after a new Minecraft version comes out. Measured on the last 6 Minecraft versions.

    Modpacks using this project

    Find modpacks with it
    Modpacks that released a new version with this project, each month
    2K1K0
    Oct 2024: 962 modpacksNov 2024: 958 modpacksDec 2024: 997 modpacksJan 2025: 1,098 modpacksFeb 2025: 1,035 modpacksMar 2025: 1,042 modpacksApr 2025: 1,116 modpacksMay 2025: 1,110 modpacksJun 2025: 1,065 modpacksJul 2025: 1,032 modpacksAug 2025: 1,099 modpacksSep 2025: 1,007 modpacksOct 2025: 1,048 modpacksNov 2025: 1,101 modpacksDec 2025: 1,146 modpacksJan 2026: 1,075 modpacksFeb 2026: 982 modpacksMar 2026: 985 modpacksApr 2026: 1,061 modpacksMay 2026: 1,122 modpacksJun 2026: 1,018 modpacksJul 2026: 1,122 modpacksAug 2026: 1,069 modpacksSep 2026: 1,029 modpacks
    Oct 2024Oct 2025Sep 2026
    Modpacks that released a new version with this project, each month
    Oct 2024962
    Nov 2024958
    Dec 2024997
    Jan 20251,098
    Feb 20251,035
    Mar 20251,042
    Apr 20251,116
    May 20251,110
    Jun 20251,065
    Jul 20251,032
    Aug 20251,099
    Sep 20251,007
    Oct 20251,048
    Nov 20251,101
    Dec 20251,146
    Jan 20261,075
    Feb 2026982
    Mar 2026985
    Apr 20261,061
    May 20261,122
    Jun 20261,018
    Jul 20261,122
    Aug 20261,069
    Sep 20261,029

    20,053 modpacks include Server Performance - Smooth Chunk Save in at least one of their versions. Here are the 30 most downloaded.

    ModpackDownloadsLast version with it
    Better 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 11 Nov 2023DawnCraft - Echoes of Legends10.5M downloadslast version with it 20 Nov 2025DeceasedCraft - Urban Zombie Apocalypse9.8M downloadslast version with it 17 Jul 2026Better MC [FABRIC] BMC17.9M downloadslast version with it 20 Nov 2023Better MC [FABRIC] - BMC25.9M downloadslast version with it 24 Jan 2026Better MC [FORGE] BMC15.8M downloadslast version with it 22 Jun 2025Cisco's Fantasy Medieval RPG [Ultimate]5.1M downloadslast version with it 26 Jun 2024Roguelike Adventures and Dungeons 24.8M downloadslast version with it 1 Oct 2026
    1 to 10 of 30123

    Often in the same modpacks

    Mods that modpacks often add together with Server Performance - Smooth Chunk Save. Share: how many of the modpacks with Server Performance - Smooth Chunk Save also have that mod.

    ProjectTypeShareGrade
    ConnectivityAModin 61% of the modpacks with Server Performance - Smooth Chunk SaveAttributeFixAModin 54% of the modpacks with Server Performance - Smooth Chunk SavesparkAModin 51% of the modpacks with Server Performance - Smooth Chunk Savefix GPU memory leakAModin 51% of the modpacks with Server Performance - Smooth Chunk SaveChunk SendingBModin 45% of the modpacks with Server Performance - Smooth Chunk SaveBetter Fps - Render DistanceBModin 45% of the modpacks with Server Performance - Smooth Chunk SaveStructure EssentialsAModin 41% of the modpacks with Server Performance - Smooth Chunk SaveChat HeadsAModin 41% of the modpacks with Server Performance - Smooth Chunk SaveYUNG's Better Nether FortressesAModin 40% of the modpacks with Server Performance - Smooth Chunk SaveSodium Dynamic LightsCModin 40% of the modpacks with Server Performance - Smooth Chunk Save
    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
    26.1 to 26.3·Fabric4.44.4 · smoothchunk-fabric-26.1-4.4.jarSends: None foundRequires:CupboardPassedOur checks found nothing harmful in this file. Its code was read too.
    26.1 to 26.3·NeoForge4.44.4 · smoothchunk-26.2-4.4.jarSends: None foundRequires:CupboardPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.1·Fabric1.21-4.41.21-4.4 · smoothchunk-fabric-1.21-4.4.jarSends: None foundRequires:CupboardPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.1·NeoForge1.21-4.41.21-4.4 · smoothchunk-1.21-4.4.jarSends: None foundRequires:CupboardPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.1·Fabric4.44.4 · smoothchunk-fabric-1.20.1-4.4.jarSends: None foundRequires:CupboardPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.1·NeoForge, Forge4.44.4 · smoothchunk-1.20.1-4.4.jarSends: None foundRequires:CupboardPassedOur checks found nothing harmful in this file. Its code was read too.
    Older Minecraft versions
    1.21·Fabric4.14.1 · smoothchunk-fabric-1.21-4.1.jarSends: None foundRequires:CupboardPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21·NeoForge4.14.1 · smoothchunk-1.21-4.1.jarSends: None foundRequires:CupboardPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20·Fabric3.53.5 · smoothchunk-fabric-1.20.1-3.5.jarSends: None foundRequires:CupboardPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20·NeoForge, Forge3.53.5 · smoothchunk-1.20.1-3.5.jarSends: None foundRequires:CupboardPassedOur checks found nothing harmful in this file. Its code was read too.
    1 to 10 of 22123

    67 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.20.1The latest file for its Minecraft version and loader·Forge, NeoForge4.44.4 · smoothchunk-1.20.1-4.4.jar·19 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 16.9 KB
    1.21.1The latest file for its Minecraft version and loader·NeoForge1.21-4.41.21-4.4 · smoothchunk-1.21-4.4.jar·19 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 15.4 KB
    1.20.1The latest file for its Minecraft version and loader·Fabric4.44.4 · smoothchunk-fabric-1.20.1-4.4.jar·19 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 18.2 KB
    1.21.1The latest file for its Minecraft version and loader·Fabric1.21-4.41.21-4.4 · smoothchunk-fabric-1.21-4.4.jar·19 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 16.5 KB
    26.1 to 26.326.1 to 26.3The latest file for its Minecraft version and loader·Fabric4.44.4 · smoothchunk-fabric-26.1-4.4.jar·19 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 16.6 KB
    26.1 to 26.326.1 to 26.3The latest file for its Minecraft version and loader·NeoForge4.44.4 · smoothchunk-26.2-4.4.jar·16 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 15.7 KB
    26.1 to 26.326.1 to 26.3·NeoForge4.34.3 · smoothchunk-26.2-4.3.jar·15 Oct 2026PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 15.7 KB
    26.1 to 26.326.1 to 26.3·Fabric4.24.2 · smoothchunk-fabric-26.1-4.2.jar·9 Apr 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 13.4 KB
    26.1 to 26.326.1 to 26.3·NeoForge4.24.2 · smoothchunk-26.1-4.2.jar·9 Apr 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 12.8 KB
    1.21 to 1.21.11.21 to 1.21.1The latest file for its Minecraft version and loader·Fabric4.14.1 · smoothchunk-fabric-1.21-4.1.jar·12 Mar 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 13.4 KB
    1.20.1·Fabric4.14.1 · smoothchunk-fabric-1.20.1-4.1.jar·12 Mar 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 17.1 KB
    1.21 to 1.21.11.21 to 1.21.1The latest file for its Minecraft version and loader·NeoForge4.14.1 · smoothchunk-1.21-4.1.jar·12 Mar 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 12.6 KB
    1.20.1·Forge, NeoForge4.14.1 · smoothchunk-1.20.1-4.1.jar·12 Mar 2025PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on CurseForgeDownload · Stable · 13.9 KB
    1.21 to 1.21.11.21 to 1.21.1·NeoForge4.04.0 · smoothchunk-1.21-4.0.jar·23 Jan 2025PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 12.0 KB
    1.21 to 1.21.11.21 to 1.21.1·Fabric4.04.0 · smoothchunk-fabric-1.21-4.0.jar·23 Jan 2025PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 12.8 KB
    1.20.1·Fabric4.04.0 · smoothchunk-fabric-1.20.1-4.0.jar·23 Jan 2025PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 16.4 KB
    1.20.1·NeoForge, Forge4.04.0 · smoothchunk-1.20.1-4.0.jar·23 Jan 2025PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 13.3 KB
    1.21 to 1.21.11.21 to 1.21.1·Fabric3.93.9 · smoothchunk-fabric-1.21-3.9.jar·9 Jan 2025PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 12.8 KB
    1.20.1·Fabric3.93.9 · smoothchunk-fabric-1.20.1-3.9.jar·9 Jan 2025PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 16.4 KB
    1.21 to 1.21.11.21 to 1.21.1·NeoForge3.93.9 · smoothchunk-1.21-3.9.jar·9 Jan 2025PassedOur checks found nothing harmful in this file.Open this file on CurseForgeDownload · Stable · 12.0 KB
    1 to 20 of 671234

    Quick fixes

    In the last 2 years, 1 release 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.1

    • smoothchunk-26.2-4.4.jar16 Oct 20264.4: Fix poi repair restoring to wrong position