Sell Applesauce turns a photo of something you want to sell into everything you need to list it. Point your phone at an item and get an identification, real sold prices, live shipping rates, and ready-to-post listing copy for eBay and Facebook Marketplace. One photo in, everything else out.
Selling something online means 15 minutes of research per item: searching eBay comps, writing keyword-optimized titles, estimating shipping, crafting descriptions. Sell Applesauce compresses that into about 30 seconds. One photo replaces the entire research loop.
Upload a photo and four things happen simultaneously:
Built for the thrift store floor. Snap a photo, enter the store's price, and get a quick margin calculation factoring in eBay fees, shipping, and COGS. The signal is simple: buy, maybe, or skip. When you have 30 minutes at Goodwill, you don't need a full listing — you need to know if that jacket is worth $8 or $80.
Every analysis saves to your inventory automatically. Track items through their lifecycle — listed, sold, or passed — and log costs and sale prices. The dashboard aggregates it all: total invested, revenue, ROI, average margin, and inventory breakdown.
The stack is deliberately simple. Python FastAPI serving Jinja2 templates. No JavaScript framework — plain HTML with vanilla JS. SQLite for storage. Custom CSS with a design system on top (warm/dark theme toggle, glassmorphism cards, noise texture).
AI is OpenAI's GPT-4o-mini vision model. Price data comes from a custom eBay sold-listings scraper. Shipping rates are real-time USPS via Pirate Ship's GraphQL API. Image deduplication uses perceptual hashing (dHash) so re-uploads return cached results instead of burning another API call.
Authentication is passwordless magic links via the Resend API. Enter your email, click a link, done. The freemium model gives you a few free analyses before requiring signup.
Sell Applesauce can post directly to eBay. Connect your eBay account via OAuth and list items with one click using the AI-generated title, description, and suggested price in the correct category.
The reselling community is large and underserved by technology. Most tools are either expensive subscription services with steep learning curves, or barcode scanners that only work for products with UPCs. There's a gap for something that handles the non-obvious stuff — vintage Levi's, board games of unknown edition, random electronics without a model number visible.
The vision model handles this surprisingly well. If it saves you 10 minutes per listing, it's doing its job.
Sell Applesauce is built by the team at applesauce.chat. For questions, feedback, or bug reports, reach out at hello@applesauce.chat.