View and download directly on github
With this python program, you can load many .schem files at once, replace block types in all of them and save the changes back to schem.

Download the .exe from latest release

1. load .schem files
2. select which blocks to replace. empty replacements will be ignored
   • copy paste with ctrl+c ctrl+v
   • save and load settings to/from file to be able to reuse the exact replacements
3. run “replace blocks” to edit loaded schematics
4. save to original or as a copy

The list of suggested blocks is updated from the loaded schematics when using “replace” and saved to minecraft_blocks.txt. Restart program to get updated suggestions.

• sponge v2 (default worldedit)

python installed on system python dependecy manager like pip

pip install -r requirements.txt
python SchemBlockReplacer.py

Schematic Preview will bulk-generate preview images for every .schem file in a folder , including subfolders with a single click. All images are saved to the scripts directory inside the search folders name. Use it to quickly get a visual overview over a schematics pack. Run the app:

pip install -r requirements.txt
python SchematicPreview.py

1. Select a directory to search for schematics:
   
2. Renders are saved into the folder name you searched in:
   
3. Additionally, a combined.png is generated which combines all schematic renders into on file:

Additional: Unknown blocks use purple color. The block colors are based on worldpainter color information in mc-materials.csv

Notes: The renders shown in this documentation come from:

1. https://www.planetminecraft.com/project/small-structure-pack/
2. https://www.planetminecraft.com/project/vanilla-house-pack-schematics-axiom-blueprints-and-world-file/
3. https://www.planetminecraft.com/project/oreforge-trees-schems-bundle-350-1-20-4/