FTB Library (Forge) (Legacy)
ModA library mod needed by other mods to work.
Why gradeC
How grades workStrengths
Points lost
All 11 criteria
Maintenance
18 points lost9 / 27Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.6.3 years ago (22 Jun 2020). 274 modpacks released in the last 6 months still include it, so it keeps 72% of these points. 9 / 12Supports 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.1.12.2 on Forge. About 9 years behind popular modding versions. Latest Minecraft: 26.3. Abandoned: no release for 6.3 years; no file for a popular modding version; no recent human commit.0 / 9Regular releasesIn how many of the last 24 months a new file came out. Full points at 8 months.No release in the last 24 months 0 / 6Stability
Full points15 / 15Removed 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.15 of the 380 modpacks with two or more versions removed it in a later one (4%) 10 / 10Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.Not measured yet.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 / 5Transparency
Full points7 / 7Source codeWhether the project page links to its source code, so anyone can read what it does.GitHub · FTBTeam/FTB-Library-Legacy 7 / 7Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.Does not apply. CurseForge links are not in our data.Popularity
Full points4 / 4DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.99,585,053 4 / 4Track record
2 points lost6 / 8AgeHow long the project has existed. It counts less when no new file came out recently.11.0 years, 223 releases 6 / 8Security
PassedFile checksThis check adds no points. It can only take points away.Our checks found nothing harmful in all 9 latest files. See Security
40.5 of the 61 points that apply = 66 out of 100. The points above are rounded to whole numbers.
About
FTB Library is a shared support mod that provides common functionality for other Feed the Beast mods, including in-game editing of some configuration options and support for multiple modes within a modpack. It also supplies APIs and GUI functionality that dependent mods can use, with some interfaces requiring FTBLib to be loaded.
Written from CurseForge and the GitHub README . How we write it
In-game changes
It has no file for a recent Minecraft version. This is about its files for Minecraft 1.7.10 to 1.12.2.
Adds no new blocks, items or other content.
Keeps all of vanilla Minecraft's textures, models and sounds.
Often used with it
See all 30Details
- License
- Not known
- Downloads
- 99.6M
- Created
- 30 Oct 2015
- Official page
- CurseForge
- Links
- Source code
Security
No harmful code found
It has no file for a recent Minecraft version. This is about its files for Minecraft 1.7.10 to 1.12.2.
We checked its files and read their code, without running it.
What it can do on your computer
- Connects to the internet
- It has code that can go online, for example to check for updates, load skins or send crash reports. No address written in the code is contacted by the code that runs. 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 1.9.4 to 1.12.1.
- 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 1.7.10 to 1.10.
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
- 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. None is for a recent Minecraft version, so the answer above is about all of them. 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.Other programs, updating itself, the webcam or microphone, an AI service.
Privacy
We found nothing it sends about you
It has no file for a recent Minecraft version. This is about its files for Minecraft 1.7.10 to 1.12.2.
We read its code without running it: it contacts 1 web address while you play.
Like any connection, each address it contacts sees your IP address.
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
- 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 Minecraft 1.7.10 to 1.12.2. See each file in Releases
- Address built while the game runsThe code builds this address while the game runs: it is not written in the file.Purpose not known.
AI
No sign so far that AI was used to make it
We looked for AI tools in its description, files, images, code history and pull requests and found none.
We have not read its changelogs 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
- 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 found882 commits read
- Pull requestsThe recent pull requests, comments, topics and README of the GitHub repository.Nothing found27 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 in the descriptionChangelogs not read yet
- 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 found83 images read
- Icon and galleryThe metadata of the original icon and gallery images of the project.Nothing found1 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 file471 code files read
Compatibility
See all 223 filesPoint at or tap a version to see its loaders.
Related projects
Projects that need FTB Library (Forge) (Legacy) to work.
FTB Utilities (Forge)DMod94.4M downloads
YABBAEMod23.3M downloads
FTB TweaksEMod7.2M downloads
FTB GuidesEMod7.2M downloads
ScannerEMod5.1M downloads
FTB Guides (Forge) (Legacy)-Mod4.5M downloads
FTB Tutorial Mod (Forge)EMod657K downloads
XPTeleportersEMod472K downloads
CraftfallEssentialsEMod190K downloads
FTB Quests ImporterEMod109K downloadsModpacks using this project
Find modpacks with it| Oct 2024 | 113 |
|---|---|
| Nov 2024 | 91 |
| Dec 2024 | 122 |
| Jan 2025 | 117 |
| Feb 2025 | 101 |
| Mar 2025 | 96 |
| Apr 2025 | 86 |
| May 2025 | 80 |
| Jun 2025 | 86 |
| Jul 2025 | 91 |
| Aug 2025 | 91 |
| Sep 2025 | 66 |
| Oct 2025 | 56 |
| Nov 2025 | 80 |
| Dec 2025 | 81 |
| Jan 2026 | 67 |
| Feb 2026 | 81 |
| Mar 2026 | 74 |
| Apr 2026 | 76 |
| May 2026 | 69 |
| Jun 2026 | 76 |
| Jul 2026 | 70 |
| Aug 2026 | 72 |
| Sep 2026 | 67 |
11,515 modpacks include FTB Library (Forge) (Legacy) in at least one of their versions. Here are the 30 most downloaded.
Roguelike Adventures and Dungeons7.6M downloadslast version with it 15 May 2026
FTB Presents SkyFactory 36.8M downloadslast version with it 10 Dec 2021
FTB Infinity Evolved5.7M downloadslast version with it 27 Jun 2019
StoneBlock5M downloadslast version with it 11 Oct 2026
MC Eternal4.9M downloadslast version with it 16 Dec 2024
FTB Presents Stoneblock 24.4M downloadslast version with it 28 Oct 2019
Project Ozone 3 A New Way Forward3.2M downloadslast version with it 16 Jan 2023
All the Mods 3 - ATM33.1M downloadslast version with it 20 Jan 2022
Dungeons, Dragons and Space Shuttles3M downloadslast version with it 8 Oct 2020
FTB Revelation3M downloadslast version with it 8 Dec 2020Often in the same modpacks
Mods that modpacks often add together with FTB Library (Forge) (Legacy). Share: how many of the modpacks with FTB Library (Forge) (Legacy) also have that mod.
ChiselCModin 78% of the modpacks with FTB Library (Forge) (Legacy)
Inventory Tweaks [1.12 only]-Modin 75% of the modpacks with FTB Library (Forge) (Legacy)
Extra UtilitiesDModin 67% of the modpacks with FTB Library (Forge) (Legacy)
Thermal FoundationCModin 67% of the modpacks with FTB Library (Forge) (Legacy)
Pams HarvestCraftDModin 65% of the modpacks with FTB Library (Forge) (Legacy)
Thermal ExpansionCModin 65% of the modpacks with FTB Library (Forge) (Legacy)
Immersive EngineeringCModin 61% of the modpacks with FTB Library (Forge) (Legacy)
Thermal DynamicsCModin 60% of the modpacks with FTB Library (Forge) (Legacy)
Ender Storage 1.8.+CModin 60% of the modpacks with FTB Library (Forge) (Legacy)
BiblioCraftDModin 59% of the modpacks with FTB Library (Forge) (Legacy)Latest files
The newest file for each Minecraft version and loader. None is for a recent Minecraft version. Recent versions: those released in the last 2 years, plus 1.20.1 and 1.21.1, among the most played in modpacks.