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Chunkmap

chunkmap.voctal.dev

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Spec score 7.8 #6 of 22 in Minecraft World Map Viewers

What it is

Chunkmap generates top-down 2D maps of Minecraft worlds from region (.mca) files. Its web viewer lets users upload their own region files, and it covers the Overworld, Nether, and End. The Windows CLI can render individual region files or combine rendered images into a single map. Its rendering modes include textures, heightmap, biomes, temperature, downfall, and inhabited views. The CLI is open source under the MIT license on GitHub, and the product is free. Chunkmap supports offline viewing and links to a Discord community. The project is labeled beta and under development, so it may not work as expected. The beta has only been tested with Minecraft 1.21.x worlds; modded worlds and chunks generated before 1.18 are unsupported. The project README also notes that Nether generation is slower than generation for the Overworld and End. The web version is for uploading and viewing region files, while the CLI provides rendering and map-merging options.

Spec sheet

Purpose
Chunkmap generates a top-down 2D map of a Minecraft world from its region (.mca) files.Read 7 Oct 2026 · chunkmap.voctal.dev
Platforms
The project provides a web viewer and a command-line interface, with a Windows-targeted CLI build documented in the README.Read 7 Oct 2026 · github.com
Support
The official site links to a Discord community.Read 7 Oct 2026 · chunkmap.voctal.dev
Maker
Voctal describes itself as a team of developers creating applications and tools.Read 7 Oct 2026 · voctal.dev
Compatibility
The beta has only been tested with Minecraft 1.21.x worlds; modded worlds and chunks generated before 1.18 are unsupported.Read 7 Oct 2026 · github.com
Development status
The website labels Chunkmap as beta and says it is under development and may not work as expected.Read 7 Oct 2026 · chunkmap.voctal.dev
Map output
The CLI can render individual .mca files and merge rendered images into a single map.Read 7 Oct 2026 · github.com
Open source
The CLI is open-source and available on GitHub under an MIT license.Read 7 Oct 2026 · github.com
Performance limit
The project README says Nether generation is slower than Overworld and End generation.Read 7 Oct 2026 · github.com
Rendering modes
The CLI includes textures, heightmap, biomes, temperature, downfall, and inhabited rendering methods.Read 7 Oct 2026 · github.com
Web viewer
The web version lets users upload region (.mca) files to view their own worlds.Read 7 Oct 2026 · chunkmap.voctal.dev
World dimensions
It supports the Overworld, Nether, and End.Read 7 Oct 2026 · chunkmap.voctal.dev

Plans and prices

Open-source beta Free Under development · tested with Minecraft 1.21.x · modded worlds unsupported · chunks generated before 1.18 incompatible Read 7 Oct 2026 · github.com

Every Chunkmap plan and price →

Strong points and limits

Strong points

  • Maps the Overworld, Nether, and End.
  • CLI can merge rendered regions into one map.
  • Offers six rendering modes.
  • CLI is open source under the MIT license.
  • Free and supports offline viewing.

Limits

  • Project is in beta and under development.
  • Modded worlds are unsupported.
  • Chunks generated before 1.18 are incompatible.
  • Nether generation is slower than other dimensions.

Who it suits

Chunkmap suits Minecraft players who want a top-down map from their world’s region files. Its CLI and open-source license may also suit users who want rendering options beyond the web viewer.

Verdict

Chunkmap offers a free web viewer and an open-source CLI for rendering Minecraft region files. Its beta compatibility limits and development status are important to consider.

Where Specifiction places it

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