FASTJSON2 Serializer for YACL
ModA library other mods need to save and load their settings.
- Security
- Passed
- Privacy
- None found
- Runs on
- Varies by version
- Loaders
- Fabric, Forge, NeoForge, Quilt
- Minecraft versions
- Up to 26.3
Why no grade
How grades workFinished or replaced projects get no grade: they will not get fixes or new versions.
- Archived on Modrinth.
All 11 criteria
Maintenance
Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.7 weeks ago (10 Sep 2026)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, 1.21.4 on Quilt, 1.20.1 on ForgeRegular 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
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.5 of the 21 modpacks with two or more versions removed it in a later one (24%)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.NoneTransparency
Source codeWhether the project page links to its source code, so anyone can read what it does.GitHub · vesmaybevesper/FASTJSON2-Serializer-for-YACLPlace to report problemsWhether the project page links to a place where players can report problems: an issue tracker.GitHub issues · vesmaybevesper/FASTJSON2-Serializer-for-YACLPopularity
DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.19,272Track record
AgeHow long the project has existed. It counts less when no new file came out recently.4 months, 88 releasesSecurity
PassedFile checksThis check adds no points. It can only take points away.Our checks found nothing harmful in all 10 latest files for recent Minecraft versions. See Security
About
FASTJSON2 Serializer for YACL is a library that lets other mods use FASTJSON2 to serialize and deserialize YetAnotherConfigLib configuration files; by itself, it adds no player-facing features. Mod developers can configure it to write a mod’s settings to a chosen JSON file, and the project describes FASTJSON2 as faster than YACL’s built-in Gson serializer at the library level, while noting that practical gains depend on config size and may be hard to notice for a single mod. It does not support JSON5, so projects that need JSON5 can continue using YACL’s built-in Gson serializer instead.
Written from Modrinth . How we write it
In-game changes
Changes the game's code in 1 area, as a library other mods build on: Game coreChanges 1 game code file in this area: the main loop, lighting and other code the whole game uses..
Adds no new blocks, items or other content.
Keeps all of vanilla Minecraft's textures, models and sounds.
Details
- Creator
- VesMaybeVesper
- License
- MIT License
- Downloads
- 19K
- Created
- 29 Jun 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
- 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 fastjson2, a library 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.
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.10 latest files: the newest file for each Minecraft version and loader. All 10 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.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
- 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 10 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
- 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 found20 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 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 file787 code files read
Compatibility
See all 88 filesPoint at or tap a version to see its loaders.
Modpacks using this project
Find modpacks with itModpacks that include FASTJSON2 Serializer for YACL in at least one of their versions, most downloaded first.
Technical Electrical124K downloadslast version with it 29 Jul 2026
Plutonium16K downloadslast version with it 29 Jul 2026
FemCraft Client15K downloadslast version with it 19 Oct 2026
Create Aeronautics Expanded | Core13K downloadslast version with it 23 Oct 2026
Modern Hypixel SkyBlock12K downloadslast version with it 27 Jul 2026
Server26 Clientside Bundle6.1K downloadslast version with it 9 Jul 2026
PepeLite4.1K downloadslast version with it 31 Aug 2026
Smooth Pack2.7K downloadslast version with it 18 Oct 2026
Vibrant Experience1.3K downloadslast version with it 19 Sep 2026
CATpack1.3K downloadslast version with it 13 Jul 2026Often in the same modpacks
Mods that modpacks often add together with FASTJSON2 Serializer for YACL. Share: how many of the modpacks with FASTJSON2 Serializer for YACL also have that mod.
LithiumAModin 100% of the modpacks with FASTJSON2 Serializer for YACL
FerriteCoreAModin 96% of the modpacks with FASTJSON2 Serializer for YACL
Sodium ExtraAModin 92% of the modpacks with FASTJSON2 Serializer for YACL
BadOptimizationsAModin 88% of the modpacks with FASTJSON2 Serializer for YACL
Reese's Sodium OptionsAModin 88% of the modpacks with FASTJSON2 Serializer for YACL
Mod MenuAModin 88% of the modpacks with FASTJSON2 Serializer for YACL
LambDynamicLights - Dynamic LightsAModin 72% of the modpacks with FASTJSON2 Serializer for YACL
Dynamic FPSAModin 72% of the modpacks with FASTJSON2 Serializer for YACL
Concurrent Chunk Management Engine (Fabric)AModin 68% of the modpacks with FASTJSON2 Serializer for YACL
No Chat ReportsAModin 68% of the modpacks with FASTJSON2 Serializer for YACLLatest 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.