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Tectonicus
What it is
Tectonicus generates detailed, zoomable maps from Minecraft Java worlds by first building a 3D model. Its map style aims to resemble the view players see in Minecraft. It runs on Linux, macOS, and Windows; users download a release, prepare an XML configuration file, and launch it from the command line with Java. After the initial render, later runs with the same options are quicker because only changed tiles are rendered. Signs appear by default, but a filter can restrict which ones show. Signs marked with #view can add first-person map views, with configurable height, angle, field of view, and nighttime rendering. Maps support dimensions, markers, and waypoints, and can be viewed offline or served from a web server. Release 2.31 supports Minecraft 1.21 through 1.21.11, but not Minecraft 26.1. Output images may use gigabytes of disk space depending on world size; WebP or JPG and closestZoomSize can reduce storage use. Tectonicus is free under the BSD 3-Clause license.
For and against
For
- Creates zoomable maps from Minecraft Java worlds.
- Later renders update changed tiles only.
- First-person views can be added from signs.
- Supports offline viewing, web servers, dimensions, and waypoints.
- Runs on Linux, macOS, and Windows.
Against
- Map images may use gigabytes of disk space.
- Minecraft 26.1 is not yet supported.
- Copper golem statues do not work; shelves render partially.
- Requires command-line use with Java and XML configuration.
The verdict
Tectonicus offers detailed, configurable maps for Minecraft Java worlds, with incremental rendering and sign-based first-person views. Consider its storage demands and Minecraft version limits before using it.
Who it suits
Tectonicus suits Minecraft Java players who want zoomable world maps, including offline viewing, server hosting, dimensions, and waypoints. It is also suited to users comfortable running command-line software with Java and configuring XML.
Plans and prices
Tectonicus
No price stated · generates large amounts of image data that may use gigabytes of disk space
Read 7 Oct 2026 · github.com
On the record
- Architecture support
- Release 2.31 adds arm64 LWJGL natives for M-series Macs and possibly other ARM platforms.github.com · read 7 Oct 2026
- First-person views
- Signs marked with #view can create first-person views in the map, with configurable height, angle, field of view, and nighttime rendering.github.com · read 7 Oct 2026
- How to run
- The README instructs users to download a release, create an XML configuration file, and run Tectonicus from the command line with Java.github.com · read 7 Oct 2026
- Incremental rendering
- After the first run, subsequent runs with the same options are significantly quicker because only changed tiles are rendered.github.com · read 7 Oct 2026
- License
- The repository provides Tectonicus under the BSD 3-Clause license.github.com · read 7 Oct 2026
- Mac support
- Release 2.31 added arm64 LWJGL native libraries for M-series Macs and possibly other ARM platforms.github.com · read 7 Oct 2026
- Maker
- The repository copyright notice names John Campbell and Tectonicus contributors.github.com · read 7 Oct 2026
- Map appearance
- The project describes its focus as maps that look very close to what players see in Minecraft.github.com · read 7 Oct 2026
- Map subsets
- Release 2.31 adds rectangular world subsets alongside circular subsets.github.com · read 7 Oct 2026
- Map views
- It can generate first-person views from sign locations and insert them into the map, with configurable height, angle, field of view, and nighttime rendering.github.com · read 7 Oct 2026
- Minecraft compatibility
- The 2.31 release states compatibility with Minecraft 1.21 through 1.21.11 and says Minecraft 26.1 is not yet supported.github.com · read 7 Oct 2026
- Minecraft support
- The latest release notes list compatibility with Minecraft 1.21 through 1.21.11 and say Minecraft 26.1 is not supported yet.github.com · read 7 Oct 2026
- Purpose
- Tectonicus generates a 3D model of a Minecraft Java world and uses it to create detailed, zoomable maps.github.com · read 7 Oct 2026
- Rendering limits
- Release notes say copper golem statues are currently not working and shelves only partially render.github.com · read 7 Oct 2026
- Sign filtering
- By default, Tectonicus displays every sign players place, and a special filter can restrict which signs appear.github.com · read 7 Oct 2026
- Storage requirements
- Generated images can use gigabytes of disk space depending on world size; the README says WebP or JPG and closestZoomSize can reduce this.github.com · read 7 Oct 2026
- Storage use
- Map image output can use gigabytes of disk space depending on world size; the README suggests WebP or JPG and closestZoomSize to reduce it.github.com · read 7 Oct 2026
- Web map behavior
- Release 2.30 says chest inventory tooltips work when the map is served from a web server or when browser CORS is disabled.github.com · read 7 Oct 2026
