Custom Advancement Downloader
by NebulaJinxed
Custom Advancement Downloader is a Fabric client mod that saves a player's advancement data to a text file in the config folder.
What it does
The mod writes advancement information to a formatted JSON file, so the achievements a player has earned can be read outside the game. A command is run after joining a server, and the chat output confirms when the advancements have been saved. The file is named by the mod and placed in the .minecraft/config folder.
The mod is useful alongside World Downloader, which helps capture a more accurate world. Only the client needs it; the server can run without it. Builds exist for 1.21.4 and 1.21.5, and the latest Fabric file is 1.0.2 for 1.21.5, released under the MIT License. The code is not open source.
Key features
Advancement export
Advancement data is written to a text file that records which achievements are visible and earned.
Formatted JSON output
The saved file uses JSON formatting, so its contents can be read and parsed with other tools.
Command-triggered save
A command starts the export, and it can be run after joining a server to capture that session's progress.
Chat confirmation
Chat output reports that the advancements were saved, so the user can check the result in game.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Pairing with World Downloader
Players who capture a world with World Downloader can add the advancement file to the same save for a fuller copy.
Who it’s for: Players who want to keep a record of their achievements, and players who archive worlds and need the advancement data stored alongside them.
How it compares
World Downloader is also a Fabric client mod under the MIT License, but it covers 1.21 – 1.21.10 and is not open source; it is required on the client while the server is optional. Disable Advancements In Dimensions is server-side only, open source under the MIT License and published for 1.21 – 1.21.5, so it works on a server without any client install. NoFingerPrint is a client-side only Fabric mod for 1.21.4 under a custom license, and it is not open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Custom Advancement Downloader | Fabric | 1.21.4 – 1.21.5 | Client-side only | 2025-06-12 |
| World Downloader | Fabric | 1.21 – 1.21.10 | Client required, server optional | 2025-10-16 |
| Disable Advancements In Dimensions | Fabric | 1.21 – 1.21.5 | Server-side only | 2025-05-02 |
| NoFingerPrint | Fabric | 1.21.4 | Client-side only | 2025-11-18 |
Questions
Does Custom Advancement Downloader need to be installed on the server?
Where is the advancement file saved?
Which game versions does the mod support?
In the catalog
Custom Advancement Downloader is one of 8,016 Management mods on ModsFinder, and one of 5,930 Management mods for Fabric. 15,307 mods support Minecraft 1.21.5.
More from NebulaJinxed
Similar mods
Official listing
- Modrinth page
- modrinth.com/mod/cad
- Owner
- NebulaJinxed
- Published
- 2025-06-11
- Updated on Modrinth
- 2025-06-12
- Facts verified
- 2026-10-15