SchematicWebViewer

Spec sheet

Purpose

SchematicWebViewer is an NPM package for importing and viewing modern Minecraft schematics.Read 11 Oct 2026 · github.com

Intended users

The project is presented as a library for developers who want to add modern Minecraft schematic viewing to a website.Read 11 Oct 2026 · github.com

Audience

The README describes using the package on a website by adding a canvas element and calling renderSchematic from JavaScript.Read 11 Oct 2026 · github.com

License

The repository provides the software under the MIT License.Read 11 Oct 2026 · github.com

Browser rendering

The README shows rendering a schematic into an HTML canvas on a website.Read 11 Oct 2026 · github.com

Browser support

The package metadata lists the last one Chrome version in its browserslist.Read 11 Oct 2026 · github.com

CORS requirement

The README says a CORS Anywhere instance is needed to access Minecraft JAR files because Mojang's download site uses CORS and redistributing the JAR would breach its license.Read 11 Oct 2026 · github.com

Display options

Render options include canvas size, grid bars, a direction arrow, antialiasing, background color, and debug information.Read 11 Oct 2026 · github.com

Input format

The schematic must be Base64 encoded and use a format supported by SchematicJS.Read 11 Oct 2026 · github.com

Integration

The package depends on SchematicJS for supported schematic formats.Read 11 Oct 2026 · github.com

Minecraft client jar

The default client jar URL function uses the EngineHub Cassette Deck service.Read 11 Oct 2026 · github.com

Orbit

The view can automatically rotate while the user is not dragging it, with a configurable orbit speed.Read 11 Oct 2026 · github.com

Related library

The README identifies SchematicJS as the library whose supported formats determine which schematic files can be used.Read 11 Oct 2026 · github.com

Rendering

The package renders a schematic to an HTML canvas using the renderSchematic function.Read 11 Oct 2026 · github.com

Rendering control

Automatic rendering can be disabled so the caller updates the view with the render method.Read 11 Oct 2026 · github.com

Rendering controls

Options include canvas size, grid and direction indicators, automatic orbit, antialiasing, background color, and debug information.Read 11 Oct 2026 · github.com

Resource pack requirement

The library requires a complete Minecraft resource pack containing all models, blockstates, and textures.Read 11 Oct 2026 · github.com

Resource packs

The renderer accepts resource pack URLs in priority order and allows callers to supply a custom function for retrieving the client JAR URL.Read 11 Oct 2026 · github.com

Schematic input

The renderer accepts a Base64-encoded schematic in a format supported by SchematicJS.Read 11 Oct 2026 · github.com

Texture requirement

The library requires a complete resource pack containing models, blockstates, and textures; the README says a Minecraft client JAR can provide these assets.Read 11 Oct 2026 · github.com

Where Specifiction places it

• Minecraft Schematic Tools#33 of 426.8