deliverables/ — print-ready PNGs in every matching ratio (2x3, 3x4, 4x5, ISO-A) and size
an AI-generated Etsy listing (title, description, tags) when enabled
DPI choice
300 DPI is standard print quality but most files exceed Etsy's 20MB upload cap (fine when Dropbox hosts your bundle). 150 DPI keeps every file under the cap for direct Etsy attachment.
Package ZIPs download automatically when generation finishes; your print files are also cached on the Deliverables page per your plan's retention.
⚡ Bulk Mockup Generator
The orange button next to the app title runs the whole seller flow hands-off:
Select multiple artwork files.
Step through mockup categories — use all, none, or hand-pick thumbnails. Generate & Push to Etsy is available at every step.
Each image automatically uses only the selected scenes that fit its aspect ratio.
Per image: package + AI listing generated → full bundle uploaded to your Dropbox (if connected) → Etsy draft listing created.
When it finishes you get links to your Deliverables and your Etsy drafts. Nothing goes live until you activate a draft in Etsy.
Etsyfree
Publishes packages as draft listings in your shop: mockups become the photos, print files attach as the digital product, AI text fills title/description/tags.
Quickest path: generate mockups, edit them to taste, then hit the orange 🏪 Etsy button on any card — every mockup of that artwork joins the same listing as photos (the clicked card is the cover, max 10), the AI describes it, print files attach, and one draft appears in your shop.
One-time setup
Apply for an API app at etsy.com/developers (a personal app for your own shop is approved fastest).
On the app page, note the Keystring and the Shared Secret — you need both.
In the app's settings add the callback URL — it follows wherever the app runs: <your-app-url>/etsy/callback. For local testing that is http://localhost:8000/etsy/callback; when deployed, add your production URL (e.g. https://yourdomain.com/etsy/callback) as well — multiple URLs can be registered at once. Use the Callback URL(s) field, not "Application URL".
In Mockup Generator: user menu → Integrations → Etsy → paste both values → Save Keys.
Click Connect Etsy Shop → authorize on Etsy → wait for the ✓ page.
Where things land
Drafts: Shop Manager → Listings → Drafts. Review and activate there (Etsy charges its $0.20 listing fee on activation, not on draft creation).
Dropboxfree
Etsy caps digital files at 5 files × 20MB. With Dropbox connected, every published listing gets its own private full-resolution bundle uploaded to your Dropbox (Apps/<app>/Etsy Bundles/), and buyers receive the download link in a PDF attached to the listing.
Creating the Dropbox app — detailed walkthrough (one time, by the app operator)
Step "Choose the type of access": select App folder — uploads stay sandboxed inside Apps/<your app name>/ and the app can never touch the rest of your Dropbox.
Name the app (e.g. MockupGenerator-Bundles). Names are unique across all of Dropbox — if it's taken, add a suffix.
Tick the terms checkbox → Create app. You land on the app's console page.
Open the Permissions tab. Tick exactly these two scopes: files.content.write (upload the bundle ZIPs) sharing.write (create the buyer download links)
Then click Submit in the banner at the bottom — unticked or unsubmitted scopes are the #1 setup mistake.
Do this before anyone clicks Connect: tokens issued earlier never gain new permissions. If you got the order wrong, Disconnect and Connect again in Integrations.
Open the Settings tab → section "OAuth 2" → Redirect URIs: type http://localhost:8000/dropbox/callback and click Add. When you deploy, come back and also add https://yourdomain.com/dropbox/callback (production must be https — Dropbox only allows plain http for localhost). Multiple URIs can be registered at once.
Still in Settings, copy the App key (not the secret) into the server's .env file as DROPBOX_APP_KEY=<key>, then restart the server.
Verify: log into the app → Integrations → Connect Dropbox → Allow → ✓ page. The header button next to Settings turns blue "Dropbox ✓"; after your first publish it opens Apps/<app name>/Etsy Bundles/ with the uploaded ZIPs.
No Dropbox? Delivering the full bundle manually
Without Dropbox connected, publishing still attaches every print file that fits Etsy's limits (5 files, 20MB each — generate at 150 DPI and usually all of them fit). To also deliver the full high-resolution bundle by hand:
Get your files. The package ZIP downloads automatically when generation finishes; print files are also kept on the Deliverables page. Unzip it — the deliverables/ folder holds every size.
Host them on any cloud storage. For example Google Drive: drive.google.com → New → Folder upload → after upload, right-click the folder → Share → change access to "Anyone with the link" → Copy link. (Dropbox's website, OneDrive or similar work the same way.)
Make a link document for buyers. Create a one-page PDF in any word processor: "Thank you for your purchase — download your full-resolution files here: [paste link]", plus a line that no account is needed. Export/print it as PDF.
Attach it on Etsy. Shop Manager → Listings → Drafts → open your listing → Digital files → upload the PDF alongside the attached print files → Save.
Test like a buyer. Open your link in a private/incognito window — it must download without asking you to log in.
Keep the link alive for as long as the listing sells; deleting the hosted files breaks past buyers' downloads.
Connecting your account
User menu → Integrations → Dropbox → Connect Dropbox.
Authorize on the Dropbox page → ✓ page → done.
From then on it's automatic: leave the "download link" prompt empty when publishing and the bundle uploads itself. Pasting a link manually always overrides. Mind your Dropbox storage quota — bundles run 50–500MB each.
Buyer access: the generated links are "anyone with the link" — buyers need no Dropbox account. The links are unguessable, so nobody can browse your other bundles. Exception: on Dropbox Business/team accounts an admin policy can restrict links to team members, which breaks buyer downloads — personal accounts are unaffected.
Printifyfree
Sell physical canvas prints: one click creates a Printify product with all sizes matching your art's aspect ratio, retail prices set automatically (30% margin after Etsy fees).
Get a token: Printify → My Profile → Connections → API → Generate.
Integrations → Printify → paste the token (Shop ID optional — your first shop is used) → Connect Printify.
Products are created as drafts in Printify; publish them to your connected sales channel from there (or pass publish=true via the API).
Printfulfree
Same idea as Printify, on Printful's catalog.
One-time setup
Create an API store. Go to printful.com/dashboard/store → click "Connect via API" → name your store. (Printful's API can only create products in API-platform stores — marketplace-connected stores like Etsy or Shopify are rejected.)
Create a token. On the developer site (developers.printful.com) open the Tokens page → fill in a token name and expiration date → set access level to "Account (all stores)" → tick all scopes → create, then copy the API key (and note the store ID).
Access level matters: a token scoped to a single marketplace store cannot see your API store. "Account (all stores)" avoids that trap. If any form asks for an app/redirect URL, your shop URL or app URL works — it is not used by this integration.
Connect. Integrations → Printful → paste the API key (Store ID optional — the API store is picked automatically over marketplace stores) → Connect Printful.
Printful downloads print files from this server by URL, so pushes only complete when the app runs on a publicly reachable URL — on localhost the product is created but the file fetch fails.
📣 Social promotion free
After a listing is on Etsy, the purple 📣 Promote button on its result cards posts the mockup with an AI-written advertising blurb to every connected platform at once — each post linking to the Etsy listing to funnel buyers there.
Pinterest — pins with a direct outbound link; the strongest Etsy traffic driver. App at developers.pinterest.com (scopes: boards + pins read/write; redirect <app-url>/social/callback/pinterest).
Facebook — photo posts to a Facebook Page you manage (personal profiles can't be posted to by any API). Meta app at developers.facebook.com with Facebook Login; redirect <app-url>/social/callback/facebook.
Instagram — posts through the same Meta connection; requires an Instagram Business/Creator account linked to your Facebook page, and a publicly reachable app URL (images are fetched by URL).
TikTok — photo posts via the Content Posting API; unaudited apps can only post privately, full public posting needs TikTok's app audit.
Snapchat — not supported and cannot be: Snapchat offers no API for organic posts (paid ads only). Post there manually if you want the channel.
Connect platforms in Integrations → Social promotion. Activate the Etsy listing before promoting so the funnel link works for buyers.
◆ What buyers receive
Buyers download from Etsy, never from this server: the order confirmation page and etsy.com/your/purchases.
They get the files attached to the listing: up to 5 files ≤20MB, plus the DOWNLOAD-YOUR-FILES.pdf with the full-bundle link when Dropbox (or a manual link) is used.
The Etsy mobile app cannot download files — the generated description already tells buyers to use a browser.
Keep Dropbox links alive as long as the listing sells — deleting the bundle breaks past buyers' downloads.
⚙ Troubleshooting
Etsy: "The requested redirect URL is not permitted"
The callback URL isn't saved in the app's Callback URL(s) field, or differs by a character (https vs http, trailing slash, missing port). Fix, save, wait 2–3 minutes, retry.
Etsy: "The application … is not recognized"
The keystring belongs to a different app than the one you edited, or the app is still pending review. Use one app for everything and check its status.
Etsy: "Shared secret is required in x-api-key header"
Save both the keystring and the shared secret in Integrations — Etsy requires the pair for API calls.
Publish button missing
It appears under "Generate Full Package" only when your Etsy shop is connected and you have completed packages from the last 24 hours.
"None of the selected mockups fit aspect ratio …"
That artwork's shape doesn't match any selected scene's frame (15% tolerance). Select scenes with matching frames or crop the art.
Printful: "This API endpoint applies only to … Manual Order / API platform"
Your connected Printful store is marketplace-connected (Etsy, Shopify…). Create an API store (Dashboard → Stores → Add store → "API") and reconnect Printful in Integrations — the API store is selected automatically.
Files skipped when publishing
Etsy's limits: 5 digital files, 20MB each. Connect Dropbox (recommended) or generate at 150 DPI so more files fit directly.
Still stuck? The server log (terminal running the app) and etsy_oauth.log usually name the exact problem.
📣 Social promotion free
After a listing is on Etsy, the purple 📣 Promote button on its result cards posts the mockup with an AI-written advertising blurb to every connected platform at once — each post linking to the Etsy listing to funnel buyers there.
<app-url>/social/callback/pinterest).<app-url>/social/callback/facebook.Connect platforms in Integrations → Social promotion. Activate the Etsy listing before promoting so the funnel link works for buyers.