Collection generator

Turn a folder of layers into thousands of unique NFTs, with metadata, right in your browser.

Upload your layers

Drop a folder that contains one sub-folder per layer, with one PNG per trait. Layers are stacked bottom to top in alphabetical order (prefix names with numbers to control it).

Drag & drop your layers folder

or

Expected folder structure

Download template (.zip)
my-collection/
  1_Background/
    blue.png
    sunset#3.png     ← "#3" = rarity weight
  2_Body/
    robin.png
  3_Eyes/
    normal.png
    laser#1.png

Tips

  • All images should have the same size (e.g. 1000×1000) with transparent backgrounds except the base layer.
  • Weights default to 10. Higher weight = more common. You can edit them after upload.
  • Everything is generated in your browser. Files stay on your computer until you launch.
  • New to this? Download the template, unzip it, replace the images with yours and drop the folder here.
Collection generator · NFS