Block Image Renderer

Pressing F7 in a loaded world writes the inventory icon of every registered item to its own PNG, with the background left see-through, and pressing F8 does the same for decorated pot, banner and shield pattern overlays. The files are collected in the block-images folder. The purpose is producing icons for developing resource and data packs, where an exact image of an item as it appears in the inventory is needed, including for block-type items that show as flat sprites.

Producing roughly 1,600 icons by hand through screenshots, cropping and transparency cleanup would be impractical, so the mod generates the whole set in seconds, with transparency and decoration overlays already prepared for a build pipeline. Minecraft 26.1's screenshot path forces every pixel opaque, which makes the transparency impossible to read back directly, so the mod works around that by rendering each item over black and over white and comparing the two results to reconstruct exact per-pixel alpha.

Install the mod alongside Fabric API, which is required. Block Image Renderer runs on the client alone and needs no server side, and it is published for Fabric only, for game versions 26.1 – 26.2 across four release versions. The source is released under the MIT License, with public links to the source code and issue tracker.