One collection. Thousands of pieces.
Import once. Review everything. Mint at your pace.
Already have artwork? Import its metadata once, review your collection, then mint in wallet-approved batches.
- 1Import artwork
- 2Collection details
- 3Review & mint
Bulk minting is being qualified for release. You can import, preview, save and export your launch now. Saved launches can still check progress; further minting waits until access is available.
Resume a saved launch
Connect the original creator wallet to resume.
Bring your artwork
Your images live on IPFS, Arweave or a public HTTPS host. Junkheap reads their links; it does not store artwork or charge for storage. If they are not hosted yet, you can upload them below to your own Pinata account.
Or upload the image files with your own Pinata key
Junkheap does not store artwork. This uploads your images as one folder to your own Pinata account and fills in the link. Create an API key there that may only upload files. The key is used from this page only, sent only to Pinata, and forgotten when you leave the page.
Select every image at once: up to 2,000 files and 1 GB together, with plain, unique file names. For a larger set, use your storage provider's desktop tool and paste the folder link.
Or paste a CSV / JSON manifest
Required: name and image. Optional: description and attributes (JSON), or trait:Background columns (CSV). Names fit 32 UTF-8 bytes; collections support 6 trait types and 255 values per type.
Your import is kept on this device until you save the launch or press Start over.