# mircokroon/minecraft-world-downloader

Download Minecraft worlds, extend server's render distance. 1.12.2 - 1.21

Repository: https://github.com/mircokroon/minecraft-world-downloader
Canonical: https://ross.abutalabs.com/products/minecraft-world-downloader
Language: Java
License: GPL-3.0
License Family: copyleft
Topics: minecraft, gui, cross-platform
Last push: 2026-01-26T21:42:51+00:00

## Health v2 (maintenance only)
Score: 52/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 64, release rhythm 8, longevity 100
- inputs: {"age_days": 2673, "days_push": 219, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1519, forks 122 (observed 2026-08-28T04:04:57.484763+00:00)

## What it is
A Java application that acts as a proxy between a Minecraft client and server to intercept and save chunk data, allowing players to download multiplayer worlds. It can also replay saved chunks to the client to extend render distance beyond server limits.

## Use cases
- download a multiplayer Minecraft world by walking around it
- extend my client's render distance beyond the server's limit
- save chest and inventory contents while exploring a server
- merge new world downloads into previously saved worlds
- view a map of which chunks have been downloaded
- run the downloader headless from the command line

## When to choose
- you want to archive or back up a multiplayer world without server access
- you need a client-agnostic solution that works with vanilla or modded clients
- you want to see farther than the server's view distance allows
- you need cross-platform support via a plain Java jar

## When to avoid
- you only play single-player worlds (no need for a proxy)
- the server actively blocks or prohibits world downloading
- you cannot run Java 21 or newer
- you need to download chunks in areas you cannot physically visit in-game

## Facets
- artifact type: application
- maturity: active
- function: proxy, networking, gui, cli
- domain: gaming-tools, cross-platform
- platform: cross-platform, jvm, cli
- tags: minecraft-world-downloader, chunk-saving, render-distance-extension, proxy-server, java, minecraft, desktop

## Member repositories
- mircokroon/minecraft-world-downloader (main) score 52

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:57.484763+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:31:58.008232+00:00, confidence not recorded.
  - readme: https://github.com/mircokroon/minecraft-world-downloader (fetched 2026-08-28T04:04:57.484763+00:00, sha a6ac37cce590)
- Data as of 2026-08-30T08:39:29.467469+00:00.