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

    Librarian's Balance

    Mod

    A new way to collect and upgrade enchantment books through villagers.

    B86/ 100
    • OverviewB
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityUp to 26.3
    • ModpacksIn 35
    • ReleasesLatest 6 Oct

    Download

    librarians-balance-4.0b-26.3.jar

    Released 23 Sep 2026 · 127.5 KB

    Passed: our checks found nothing harmful in this file.

    Download
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade B

    How grades work

    Strengths

    • Security checks passed
    • Regular releases for the newest Minecraft versions
    • Around for years

    Points lost

    • Many modpacks removed it−6 points
    • No public issue tracker−3 points
    • 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.3 weeks ago (6 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, Forge, NeoForge and Quilt (latest) 9 / 9
      Regular releasesIn how many of the last 24 months a new file came out. Full points at 8 months.Releases in 9 of the last 24 months 6 / 6

    • Stability

      6 points lost16 / 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.9 of the 32 modpacks with two or more versions removed it in a later one (28%) See the 9 modpacks4 / 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 15 releases in 2 years needed a quick fix (7%) 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

      3 points lost7 / 10
      Source codeWhether the project page links to its source code, so anyone can read what it does.GitHub · mistrk7/librarians-balance 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.93,197 3 / 4

    • Track record

      Full points8 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.3.7 years, 89 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
    Total86 / 100

    61 of the 71 points that apply = 86 out of 100.

    Images

    • poser!
    • put books...
    • on lecterns 👍
    • Meme explanation
    • Meme explanation 2

    About

    Librarian’s Balance changes librarian trading to make acquiring powerful enchantments a more gradual process, particularly in survival multiplayer worlds. Players can place an enchanted book on a librarian’s lectern to set a matching book trade, with emerald prices based on the book’s strongest enchantment and how many enchantments it contains. Random librarian book trades are limited to level 3; players can use custom trades and anvil combinations to build higher-level books, while book copying lets them obtain further copies of enchantments they have found. Mending must first be discovered in an End City or Ancient City before it can be traded through a lectern, and other treasure enchantments include Soul Speed, Swift Sneak, and Wind Burst. Copies of treasure-enchantment books bought through lectern trades become sealed, so they can be applied to gear but cannot be traded again through lecterns; this helps keep rare enchantments from circulating freely. The datapack also adjusts loot tables and basic villager-trading rules, and its settings can be configured in-game.

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

    In-game changes

    Does not change the game's code directly.

    Adds 1 enchantment: Sealed; 3 advancements.

    Counted from the names and data files in the mod, so the list may not be complete.

    Replaces 2 of vanilla Minecraft's loot tables.

    Often used with it

    See all 30
    FerriteCoreALithiumAMod MenuAReese's Sodium OptionsAChat HeadsA

    Details

    Creator
    misterk7_-
    License
    MIT License
    Downloads
    93K
    Created
    6 Feb 2023
    Official page
    Modrinth
    Links
    Source code , Discord

    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 13 latest files checked, last on 18 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.
      13 latest files: the newest file for each Minecraft version and loader. The answer above is about the 9 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 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
    • 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
      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

    Compatibility

    See all 89 files
    Fabric
    NeoForge
    Forge
    Quilt
    Data pack
    1.171.201.2126.1

    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.Install it on the server. Players join without installing it. It also works in singleplayer.
    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 23 days after a new Minecraft version comes out. Measured on the last 6 Minecraft versions.

    Modpacks using this project

    Find modpacks with it

    35 modpacks include Librarian's Balance in at least one of their versions. Here are the 30 most downloaded.

    ModpackDownloadsLast version with it
    Arcane Dragons [FABRIC]58K downloadslast version with it 14 Mar 2025The Clash of Epochs17K downloadslast version with it 4 Aug 2026Magic, Adventures and Creatures13K downloadslast version with it 26 Apr 2023Elevated Expeditions13K downloadslast version with it 22 Mar 2025Better Craft: Lineage11K downloadslast version with it 30 Mar 2024ClassicCraft+7.9K downloadslast version with it 23 Dec 2025Minecraft Jade6.9K downloadslast version with it 4 Dec 2024Neodymium5.7K downloadslast version with it 6 Apr 2024Farmers' Galore5.5K downloadslast version with it 21 Jul 2024Mods of Mayhem5.3K downloadslast version with it 24 May 2024
    1 to 10 of 30123

    Often in the same modpacks

    Mods that modpacks often add together with Librarian's Balance. Share: how many of the modpacks with Librarian's Balance also have that mod.

    ProjectTypeShareGrade
    FerriteCoreAModin 89% of the modpacks with Librarian's BalanceLithiumAModin 89% of the modpacks with Librarian's BalanceMod MenuAModin 86% of the modpacks with Librarian's BalanceReese's Sodium OptionsAModin 71% of the modpacks with Librarian's BalanceChat HeadsAModin 71% of the modpacks with Librarian's BalanceSodium ExtraAModin 69% of the modpacks with Librarian's BalanceKryptonAModin 60% of the modpacks with Librarian's BalanceLambDynamicLights - Dynamic LightsAModin 60% of the modpacks with Librarian's BalanceBadOptimizationsAModin 60% of the modpacks with Librarian's BalanceNo Chat ReportsAModin 60% of the modpacks with Librarian's Balance
    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, NeoForge, Forge, Quilt4.0b-mod4.0b-mod · librarians-balance-4.0b-26.3.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    26.2·Fabric, NeoForge, Forge, Quilt4.0b-mod4.0b-mod · librarians-balance-4.0b-26.2.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    26.1 to 26.1.2·Fabric, NeoForge, Forge, Quilt4.0b-mod4.0b-mod · librarians-balance-4.0b-26.1.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.11·Fabric, NeoForge, Forge, Quilt4.0b-mod4.0b-mod · librarians-balance-4.0b-1.21.11.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.9 to 1.21.10·Fabric, NeoForge, Forge, Quilt4.0-10-mod4.0-10-mod · librarians-balance-4.0-1.21.9-10.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.6 to 1.21.8·Fabric, NeoForge, Forge, Quilt4.0b-8-mod4.0b-8-mod · librarians-balance-4.0b-1.21.6-8.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.5·Fabric, NeoForge, Forge, Quilt4.0-mod4.0-mod · librarians-balance-4.0-1.21.5.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21 to 1.21.4·Fabric, NeoForge, Forge, Quilt4.0-1.21.0-4-mod4.0-1.21.0-4-mod · librarians-balance-4.0-1.21.0-4.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.1·Fabric, NeoForge, Forge, Quilt3.5-mod3.5-mod · librarians-balance-3.5-(1.20.1).jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    Older Minecraft versions
    1.20.5 to 1.20.6·Fabric, Forge, Quilt3.0b-mod3.0b-mod · librarians-balance-3.0b.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1 to 10 of 1312

    89 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.21 to 1.21.41.21 to 1.21.4The latest file for its Minecraft version and loader·Fabric, Forge, NeoForge, Quilt4.0-1.21.0-4-mod4.0-1.21.0-4-mod · librarians-balance-4.0-1.21.0-4.jar (main file)·6 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Stable · 127.7 KB
    1.21.5The latest file for its Minecraft version and loader·Fabric, Forge, NeoForge, Quilt4.0-mod4.0-mod · librarians-balance-4.0-1.21.5.jar (main file)·6 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Stable · 127.0 KB
    1.21.6 to 1.21.81.21.6 to 1.21.8The latest file for its Minecraft version and loader·Fabric, Forge, NeoForge, Quilt4.0b-8-mod4.0b-8-mod · librarians-balance-4.0b-1.21.6-8.jar (main file)·6 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Stable · 129.8 KB
    1.21 to 1.21.41.21 to 1.21.4·Data pack4.0-1.21.0-44.0-1.21.0-4 · Librarian's Balance - v4.0-1.21.0-4.zip (main file)·6 Oct 2026Not checkedWe have not checked this file yet.Open this file on ModrinthDownload · Stable · 44.8 KB
    1.21.5·Data pack4.04.0 · Librarian's Balance - v4.0-1.21.5.zip (main file)·6 Oct 2026Not checkedWe have not checked this file yet.Open this file on ModrinthDownload · Stable · 44.7 KB
    1.21.6 to 1.21.81.21.6 to 1.21.8·Data pack4.0b-84.0b-8 · Librarian's Balance - v4.0b-1.21.6-8.zip (main file)·6 Oct 2026Not checkedWe have not checked this file yet.Open this file on ModrinthDownload · Stable · 48.8 KB
    1.21.9 to 1.21.101.21.9 to 1.21.10The latest file for its Minecraft version and loader·Fabric, Forge, NeoForge, Quilt4.0-10-mod4.0-10-mod · librarians-balance-4.0-1.21.9-10.jar (main file)·6 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Stable · 129.8 KB
    1.21.11The latest file for its Minecraft version and loader·Fabric, Forge, NeoForge, Quilt4.0b-mod4.0b-mod · librarians-balance-4.0b-1.21.11.jar (main file)·6 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Stable · 130.1 KB
    1.21.9 to 1.21.101.21.9 to 1.21.10·Data pack4.0-104.0-10 · Librarian's Balance - v4.0-1.21.9-10.zip (main file)·6 Oct 2026Not checkedWe have not checked this file yet.Open this file on ModrinthDownload · Stable · 48.7 KB
    1.21.11·Data pack4.0b4.0b · Librarian's Balance - v4.0b-1.21.11.zip (main file)·6 Oct 2026Not checkedWe have not checked this file yet.Open this file on ModrinthDownload · Stable · 48.7 KB
    1.21.6 to 1.21.81.21.6 to 1.21.8·Fabric, Forge, NeoForge, Quilt4.0-8-mod4.0-8-mod · librarians-balance-4.0-1.21.6-8.jar (main file)·4 Oct 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthDownload · Stable · 129.8 KB
    1.21.6 to 1.21.81.21.6 to 1.21.8·Data pack4.0-84.0-8 · Librarian's Balance - v4.0-1.21.6-8.zip (main file)·4 Oct 2026Not checkedWe have not checked this file yet.Open this file on ModrinthDownload · Stable · 48.8 KB
    1.21.11·Fabric, Forge, NeoForge, Quilt4.0-mod4.0-mod · librarians-balance-4.0b-1.21.11.jar (main file)·4 Oct 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthDownload · Stable · 130.1 KB
    1.21.9 to 1.21.111.21.9 to 1.21.11·Fabric, Forge, NeoForge, Quilt4.0b-11-mod4.0b-11-mod · librarians-balance-v4.0b-1.21.9-11.jar (main file)·4 Oct 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthDownload · Stable · 129.8 KB
    1.21.9 to 1.21.111.21.9 to 1.21.11·Data pack4.0b-114.0b-11 · Librarian's Balance - v4.0b-1.21.9-11.zip (main file)·4 Oct 2026Not checkedWe have not checked this file yet.Open this file on ModrinthDownload · Stable · 48.8 KB
    1.21.11·Data pack4.04.0 · Librarian's Balance - v4.0-1.21.11.zip (main file)·4 Oct 2026Not checkedWe have not checked this file yet.Open this file on ModrinthDownload · Stable · 48.7 KB
    26.1 to 26.1.226.1 to 26.1.2The latest file for its Minecraft version and loader·Fabric, Forge, NeoForge, Quilt4.0b-mod4.0b-mod · librarians-balance-4.0b-26.1.jar (main file)·4 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Stable · 129.3 KB
    26.1 to 26.1.226.1 to 26.1.2·Data pack4.0b4.0b · Librarian's Balance - v4.0b-26.1.zip (main file)·4 Oct 2026Not checkedWe have not checked this file yet.Open this file on ModrinthDownload · Stable · 48.7 KB
    26.2The latest file for its Minecraft version and loader·Fabric, Forge, NeoForge, Quilt4.0b-mod4.0b-mod · librarians-balance-4.0b-26.2.jar (main file)·4 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthDownload · Stable · 129.3 KB
    26.2·Data pack4.0b4.0b · Librarian's Balance - v4.0b-26.2.zip (main file)·4 Oct 2026Not checkedWe have not checked this file yet.Open this file on ModrinthDownload · Stable · 48.7 KB
    1 to 20 of 8912345

    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

    • 3.7c10 May 2025Fix 'Sealed' book text being broken - Fix Config menu - Book…