The app for Vinted resellers, from the listing to the margin
Selling a lot on Vinted? Postfast writes your listings from a photo — title, description, hashtags — and tracks what Vinted never shows you: your net margins and your stock.
Selling faster on Vinted when you list item after item
When you post ten, twenty or fifty items a month, the photos are not the slow part: writing a sharp title, a full description and the right hashtags for every single piece is. The result is either rushed listings, or whole evenings spent typing.
Postfast is the app built for Vinted resellers who want to sell faster: photograph the item, the AI writes the listing, you only have to read it over and publish. The real gain comes next — Postfast tracks your margins and tells you whether you are actually making money, which Vinted does not.
Writing a Vinted listing from a photo
From your photos, the AI identifies the item and writes a listing ready to paste into Vinted:
Title + description
A clear, searchable title and a description that puts the brand, the size, the condition and the details up front — no waffle, no typos.
Hashtags that fit
Hashtags in line with how people search on Vinted, generated automatically so your items surface better.
Estimated price
A starting price range, so you neither undersell nor sit there unsold. Except for clothing, shoes and accessories: their price depends mostly on the size.
You stay in control: every field is editable before you publish. You can also set the tone, and choose whether to include emojis and hashtags, in your settings.
From photo to Vinted in a few taps
Let us be straight: Postfast does not publish to Vinted automatically, because Vinted does not open its API to third-party tools. No app does it for you. So we made the copy-paste as quick as it can be.
Photograph the item
One photo or several is enough. Add a free-text note if you need to (size, flaw, accessory).
The AI writes the listing
Title, description and hashtags are generated in seconds. You read them over and adjust.
Open Vinted in one tap
Postfast copies the title and opens Vinted: you paste it. Come back to Postfast and the description is copied: paste it, add your photos and publish.
Mark it as sold
Once the item sells, enter the price and the fees: Postfast works out your net margin.
Tracking your Vinted margins, which the Vinted app never shows
Vinted tells you how much you have sold, never how much you have made. That is where Postfast earns its place for a reseller.
- Real net margin: every sale is linked to its purchase cost and to the fees, so you see the actual profit — not just the turnover.
- ROI per item and per lot: the cost of a job lot is split in proportion to the value of each piece, so you know what genuinely pays.
- Best and worst buys: what resells well (buy more of it) and what sits in stock or goes out at a loss (clear it).
- Alerts for dormant stock and listings due a relist, plus a CSV export for your bookkeeping — and CSV import of your purchases.
The tracking is the real value.
Plenty of apps write a listing. Knowing whether your Vinted activity is profitable, month after month and category by category, is what Postfast is built for. It is all laid out in our guide to working out your resale margin and ROI.
Setting the right price before you publish
Pricing a Vinted item at random means either underselling it or watching it sit there. Postfast gives you an estimate drawn from the AI and from eBay comparables, plus links so you can check for yourself: items that actually sold on eBay, plus current listings on Vinted and the main classifieds site in your country (Gumtree in the UK, DoneDeal in Ireland). It is a reliable starting point, not a guaranteed truth: the last word is yours. For clothing, shoes and accessories, the app does not suggest a price: it depends mostly on the size, which a photo does not show. See our page on estimating a resale price.
Even before you buy to resell, Buying mode estimates an item's resale value and the margin you could make at the asking price. Postfast does not tell you what to buy — it helps you decide with real market data.
Free to start, without limits when your volume grows
Every feature — generation, margin tracking, estimates, CSV export — is in the free plan. The paid plan only unlocks volume.
- Free plan: 5 generations a month, plus 10 free when you sign up.
- PostFast Plus: generations without limits, from €6.99 a month (launch price, soon €9.99).
- No feature held back: margin tracking and CSV export are free for everyone.
The app is available on iOS and Android. Discover Postfast and see everything it does for resellers.
Frequently asked questions
Can Postfast publish to Vinted automatically?
No. Vinted does not open its API to third-party tools, so no app publishes automatically on your behalf. Postfast copies the title and opens Vinted in one tap; when you come back to Postfast, the description is copied in turn. You paste each one in its place, add your photos and publish.
How does Postfast work out my margin on Vinted?
By linking every sale to its purchase cost and to the fees you actually paid. You get the net margin and the ROI, item by item and lot by lot — precisely what the Vinted app does not show you.
Does Postfast generate hashtags for Vinted?
Yes. From the photo, the AI writes the title, the description and hashtags that fit how people search on Vinted, all editable before you publish. You can also choose not to include any, in your settings.
Is the price estimate for Vinted reliable?
It draws on the AI and on eBay comparables, with links so you can check for yourself: items that actually sold on eBay, plus current listings on Vinted and the main classifieds site in your country (Gumtree in the UK, DoneDeal in Ireland). It is a solid starting point, not a guarantee: adjust it for the condition of the item and for demand. For clothing, shoes and accessories, the app does not suggest a price: it depends mostly on the size, which a photo does not show.
Is Postfast free for Vinted resellers?
Yes. The free plan includes 5 generations a month plus 10 free when you sign up, and every feature (margin tracking, CSV export). PostFast Plus gives you generations without limits from €6.99 a month, launch price.
Does Postfast only work for Vinted?
No. Postfast covers 51 second-hand platforms across 13 countries, and shows you the ones in your selling country: in the UK, that means eBay, Vinted, Facebook Marketplace, Etsy, Vestiaire Collective, Depop, Gumtree, Vivastreet, Shpock, Preloved and Locanto. For sellers in France, eBay can be published to directly through its API; everywhere else, and on every other platform, Vinted included, it is assisted copy and paste.
Read next.
Car boot sales & flea markets · Estimating a resale price · Working out your margin & ROI · Managing stock as a pro reseller · Frequently asked questions
Ready to sell faster?
Postfast writes your listings with AI and tracks your margins. Free to start, on iPhone and Android.
On a computer: open the web app, with the same account.
Got a question? Email us at hello@postfast.fr.