Building this in Minecraft? Here's what you'll need.
Point it at a reference image and it tells you which Minecraft blocks the thing is made of, which ones you can get at your Survival stage, and roughly how many. Build it freehand from your reference; this is your materials list. There's also a pixel-art mode for flat builds with exact counts. Verified colours, real textures, no AI, no API.
Build helper — for building a real 3D thing (a house, a tower) freehand from a reference. Tells you which blocks it uses, which you can get at your stage, and roughly how many. You build it by eye; this is your materials list.
wide
tall
deep
used for a rough block estimate. eyeball it from your reference; depth is front-to-back.
limits the palette to blocks that existed in that version. concrete & glazed arrive in 1.12; nether blocks 1.16; deepslate 1.17.
build in one material, or mix for the closest colour match.
Block map
Each cell is one block, face-on. Hover to see which block a cell is. Zoom to build square by square.
Blocks you'll need
Verified colour and the real block texture side by side. In Survival, each is tagged by whether you can get it at your stage. Tap a row for close swaps.
Showing each block's verified in-game colour. Consistent across every block, and true to how the block actually looks in Minecraft.