Diatome in action
Three levers to turn every product into an opportunity. No friction, no development, right inside your Shopify store.
Community resale
Your customers buy and sell to each other, directly on your site. New and pre-owned live side by side on the same product page.
Product buy‑back with instant credit
Your unsold and returned items become sellable stock in a few clicks. Multi-channel, no extra logistics.
Redistribution of your unsold stock
Publish your unsold or returned items across multiple sales channels in a few clicks while reducing your carbon footprint.
#1 — Collect all your products in one place
Your customers submit their items in 1 minute from your store. Purchase history, catalogue or search: they choose, you receive.
Unsold stock, returns, end-of-line, prototypes: add your own inventory in a few clicks via CSV import or from your CMS.
Each resold item displays its origin: customer return, end-of-line, community. The buyer knows exactly what they're purchasing.
One single place for customer collection and your brand stock. No need for multiple tools.

#2 - A dedicated product page, just like new
Each second-hand item has its own product page with a dedicated template. Condition, quality grade and origin clearly displayed.
Brand offers and community offers side by side. The buyer compares the brand price and the C2C price at a glance.
The environmental impact is displayed on every listing. CO2 saved, water preserved. Real data for the customer.
The same shopping experience as a new product. Photos, description, size, colour. Zero compromise.

#3 — Engage your community and generate new revenue
Your customer receives an email in your name: their item is sold, their gift card is ready. Guaranteed return to your store.
Built-in loyalty bonus: each sale generates a gift card with a bonus (+20%). The customer comes back to buy new.
On every C2C sale by bank transfer, you earn a commission. By gift card, you build loyalty. Double win.
Every transaction displays the environmental impact: CO2 saved, water preserved. Real results!

Ready to make your e‑commerce circular ?
Three times more reasons to join the circular economy
Request a demo →#4 — The smart basket
New and second-hand in the same basket. Your customer adds a new item at 89 euros and two second-hand pieces at -44%. One checkout, one order.
The savings are obvious. Original price crossed out, reduced price, "-44%" badge: the "Second-hand savings" line shows the total discount in real time.
Identified seller, built-in trust. Each item displays its seller, verified individual or pro. The buyer knows who they're buying from.
Every new product page drives traffic to your second-hand catalogue. Without cannibalising, by complementing.

#5 — Your new products become a second-hand channel
On every new product page, an integrated widget displays available second-hand alternatives. Brand offers and community offers, side by side.
Your out-of-stock sizes are no longer a dead end. The widget automatically suggests second-hand offers in the right size.
Two sources, one single place: your brand stock (returns, unsold) and items sold by your community appear together, with crossed-out prices and visible discounts.
Every new product page drives traffic to your second-hand catalogue. Without cannibalising, by complementing.

#6 — Manage everything from your dashboard
Orders, revenue and second-hand products at a glance. Your second-hand KPIs are centralised, updated in real time.
Each item displays its origin (customer submission, non-conforming return, bulk import). You know exactly where every product comes from and the details.
End-to-end order tracking: shipping status, label, delivery. Everything is tracked with no manual intervention.
Moderation, products, orders and shop settings: everything is accessible from a single interface, designed for your team.

And behind the scenes?
Discover how Diatome automates the creation, management, and resale of your pre-owned products.
Request a demo →Your product listings already exist
Diatome reads your existing catalog, even archived and unpublished listing, and generates resale-ready product pages
Title, description, photos, sizes: everything is retrieved automatically. No more time-consuming manual entry
Your customer adds their product photos, Diatome handles the rest
No existing listing? Atelier generates a complete page from photos alone

Your collection grows on autopilot
Generate additional revenue from your dead stock: returns, unsold items, end-of-line products
Operational in hours, not weeks : no technical skills required
Your former customers list at least 4 products per week, with zero effort on your part
Your customers buy new and pre-owned in the same cart — your catalog grows naturally

Buy back in-store, sell online
The customer brings their old product to the store
The sales associate evaluates the condition via the Diatome interface and put it back online on sale in seconds
The customer leaves immediately with a store credit
The product goes live online automatically: listing created, price adjusted, published

Not on Shopify?
Discover our flexible API and integrate Diatome with your existing e‑commerce platform.
Discover our API →The 3 pillars of Diatome
Circularity
Every product deserves more than one life. By integrating pre-owned directly into your store, you're not selling for less: you're creating more value. For your customers, for the planet, and for your margin.
Community
Your customers aren't just buyers: they're your first ambassadors. When they resell, they talk about you. When they buy back, they come back to you. Circularity builds a bond that advertising can't buy.
Simplicity
Zero development. 100% plug & play. One dashboard, one clear view. Diatome plugs into your Shopify in a few clicks and automates what nobody has time to do manually. You steer, Diatome delivers.

