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    2,063,946 files checkedFiles from Modrinth and CurseForge we downloaded and checked. Counted on 26 Oct 2026.642,572 files with their code readFiles whose code we turned back into readable code and read, in an isolated environment. Counted on 26 Oct 2026.270,498 projects gradedProjects with a letter from A to F. Counted on 26 Oct 2026.
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    © 2026 ModgradeNot an official Minecraft product. Not approved by or associated with Mojang or Microsoft.

    Iron's Spellbooks Tweaks

    Mod

    Tune mana, spell power, and cooldowns for your spells.

    Download

    Files come from Modrinth and CurseForge servers.

    irons_spellbooks_tweaks-1.5.0.jar

    Released 6 Jun 2026 · 77.9 KB

    Passed: our checks found nothing harmful in this file.

    Download
    B88/ 100
    Security
    Passed
    Privacy
    None found
    Runs on
    Server only
    Loaders
    Forge, NeoForge
    Minecraft versions
    Up to 1.21.1
    • OverviewB
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityUp to 1.21.1
    • ModpacksIn 49
    • ReleasesLatest 6 Jun
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade B

    How grades work

    Strengths

    • Security checks passed
    • Stable releases
    • Public source code and issue tracker
    • Widely used

    Points lost

    • First release only 6 months ago−5 points
    • No release in 5 months−2 points
    All 11 criteria

    • Maintenance

      2 points lost19 / 21
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.5 months ago (10 Jun 2026) 10 / 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.1.21.1 on NeoForge, 1.20.1 on Forge. 65% of the 993 popular NeoForge mods updated in the last 6 months also have files for 1.21.1. 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.Does not apply. The project is under 6 months old.

    • Stability

      Full points15 / 15
      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.2 of the 45 modpacks with two or more versions removed it in a later one (4%) 10 / 10
      Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.Does not apply. The project is under 6 months old.
      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 · Nightwielder23/irons-spellbooks-tweaks 7 / 7
      Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.GitHub issues · Nightwielder23/irons-spellbooks-tweaks 3 / 3

    • Popularity

      Full points4 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.917,728 4 / 4

    • Track record

      5 points lost3 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.6 months, 14 releases 3 / 8

    • Security

      Passed
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in both latest files for recent Minecraft versions. See Security
    Total88 / 100

    50.9 of the 58 points that apply = 88 out of 100. The points above are rounded to whole numbers.

    About

    Iron's Spellbooks Tweaks gives modpack makers server-side controls for balancing Iron's Spells 'n Spellbooks that the base mod does not expose, using a separate TOML configuration. Pack authors can adjust mana regeneration and maximum mana, spell cooldown and cast time, overall spell power, and buff or debuff durations; duration scaling can include effects from named addons such as Cataclysm Spellbooks, Traveloptics, and Illage and Spell-age, while leaving vanilla potion, food, and beacon effects alone. Further controls can block player spellcasting in selected dimensions, cap the rarity players may cast, prevent chosen spells from being inscribed, set resistance to black-hole pulls for specific entity types, and scale the health or damage of summoned vexes, Raise Dead skeletons and zombies, polar bears, horses, and Summon Swords. Optional per-spell lists can independently multiply spell damage, cooldowns, and mana costs, allowing targeted adjustments alongside the global spell-power and timing settings. Global settings can be supplemented with per-world overrides, and datapack unlocks can grant players higher rarity limits, mana or timing bonuses, or exemptions from dimension and inscription restrictions after advancement or entity-kill requirements.

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

    In-game changes

    Does not change the game's code directly.

    Adds no new blocks, items or other content.

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

    Details

    Creator
    night23
    License
    MIT License
    Downloads
    918K
    Created
    30 Apr 2026
    Official pages
    Modrinth , CurseForge
    Links
    Source code , Issues

    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 · Both latest files checked, last on 15 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.
      2 latest files: the newest file for each Minecraft version and loader. Both 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.
      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 · Both 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 both 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 and code history 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 · 6 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
    • 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
      30 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
      32 code files read

    Compatibility

    See all 14 files
    NeoForge
    Forge
    1.201.2126.126.3

    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.
    Iron's Spells 'n SpellbooksA
    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.It has no file for Minecraft versions newer than 1.21.1. Many recently updated mods still support 1.21.1.

    Modpacks using this project

    Find modpacks with it

    49 modpacks include Iron's Spellbooks Tweaks in at least one of their versions. Here are the 30 most downloaded.

    ModpackDownloadsLast version with it
    FTB StoneBlock 43M downloadslast version with it 21 Oct 2026Soulrend - Dark Fantasy RPG Soulslike1.2M downloadslast version with it 21 Oct 2026DarkRPG - RPG with Vampires, Dragons, Magic, Quests, Adventure841K downloadslast version with it 20 Oct 2026FTB Skies 2590K downloadslast version with it 12 Oct 2026MYTHCRAFT5222K downloadslast version with it 22 Oct 2026Restless Horizons179K downloadslast version with it 24 Oct 2026Ice and Fire Magic158K downloadslast version with it 4 Jun 2026Rhinocraft62K downloadslast version with it 6 Aug 2026Mystic Sky3.1K downloadslast version with it 10 Jul 2026Project TAO2.2K downloadslast version with it 10 Sep 2026
    1 to 10 of 30123

    Often in the same modpacks

    Mods that modpacks often add together with Iron's Spellbooks Tweaks. Share: how many of the modpacks with Iron's Spellbooks Tweaks also have that mod.

    ProjectTypeShareGrade
    Iron's Spells 'n SpellbooksAModin 100% of the modpacks with Iron's Spellbooks TweaksL_Ender's CataclysmBModin 88% of the modpacks with Iron's Spellbooks TweaksSophisticated StorageAModin 71% of the modpacks with Iron's Spellbooks TweaksCrash AssistantAModin 65% of the modpacks with Iron's Spellbooks TweaksAllTheLeaks (Memory Leak Fix)AModin 65% of the modpacks with Iron's Spellbooks TweaksAttributeFixAModin 65% of the modpacks with Iron's Spellbooks TweaksMmmMmmMmmMmmAModin 63% of the modpacks with Iron's Spellbooks TweaksAmendmentsAModin 63% of the modpacks with Iron's Spellbooks TweaksMowzie's MobsBModin 63% of the modpacks with Iron's Spellbooks TweakssparkAModin 61% of the modpacks with Iron's Spellbooks Tweaks
    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
    1.21.1·NeoForge1.5.01.5.0 · irons_spellbooks_tweaks-1.5.0.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.20.1·Forge1.5.01.5.0 · irons_spellbooks_tweaks-1.5.0.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.

    14 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    1.20.1The latest file for its Minecraft version and loader·Forge1.5.01.5.0 · irons_spellbooks_tweaks-1.5.0.jar (main file)·6 Jun 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 84.3 KB
    1.21.1The latest file for its Minecraft version and loader·NeoForge1.5.01.5.0 · irons_spellbooks_tweaks-1.5.0.jar (main file)·6 Jun 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 77.9 KB
    1.21.1·NeoForge1.4.11.4.1 · irons_spellbooks_tweaks-1.4.1.jar·30 May 2026PassedOur checks found nothing harmful in this file. Its code was read too.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 66.5 KB
    1.20.1·Forge1.4.11.4.1 · irons_spellbooks_tweaks-1.4.1.jar·30 May 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 71.9 KB
    1.21.1·NeoForge1.4.01.4.0 · irons_spellbooks_tweaks-1.4.0.jar·28 May 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 66.2 KB
    1.20.1·Forge1.4.01.4.0 · irons_spellbooks_tweaks-1.4.0.jar·28 May 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 72.0 KB
    1.21.1·NeoForge1.3.01.3.0 · irons_spellbooks_tweaks-1.3.0.jar·11 May 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 60.2 KB
    1.20.1·Forge1.3.11.3.1 · irons_spellbooks_tweaks-1.3.1.jar·11 May 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 65.9 KB
    1.20.1·Forge1.3.01.3.0 · irons_spellbooks_tweaks-1.3.0.jar·10 May 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 65.7 KB
    1.20.1·Forge1.2.11.2.1 · irons_spellbooks_tweaks-1.2.1.jar·5 May 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 64.6 KB
    1.20.1·Forge1.2.01.2.0 · irons_spellbooks_tweaks-1.2.0.jar·5 May 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 64.9 KB
    1.20.1·Forge1.1.11.1.1 · irons_spellbooks_tweaks-1.1.1.jar·1 May 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 57.7 KB
    1.20.1·Forge1.1.01.1.0 · irons_spellbooks_tweaks-1.1.0.jar·1 May 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 57.1 KB
    1.20.1·Forge1.0.01.0.0 · irons_spellbooks_tweaks-1.0.0.jar·30 Apr 2026PassedOur checks found nothing harmful in this file.Not on ModrinthOpen this file on CurseForgeDownload · Stable · 15.5 KB