Image Hosting for Substack
Host images with direct HTTPS URLs that work in Substack posts, embeds, and workflows.
Upload once, copy the direct image URL, paste into Substack.
Compress wide screenshots before sharing.
Use temporary hosting for disposable marketplace or support links.
Check Substack image size guidelines if uploads fail.
Related tools & pages
FAQ
Usually yes for HTTPS direct links — avoid HTML wrapper pages.
ImageUpload.app offers free uploads without registration for basic use.
Choose unlimited or temporary storage when you upload.
JPEG/WebP for photos; PNG for UI and transparency.