About keenfind
keenfind is one search that runs across several secondhand marketplaces across Western Europe. It returns a single deduplicated, sorted list instead of the visitor opening and searching each marketplace in turn. Match check, on every search, reads each listing and puts the ones that match first.
What is keenfind?
keenfind is a secondhand marketplace aggregator. It does not sell anything itself and is not affiliated with any of the marketplaces it searches. Every result links out to the marketplace that posted it, and every purchase happens there, under that marketplace's own terms.
The product exists because checking several marketplaces for the same search is slow, and a listing is easy to miss simply because it was posted on the one site not checked that day. keenfind searches every one of them at once and combines the copies that appear when the same item is posted on more than one marketplace.
keenfind is aimed at buyers looking for a specific secondhand item, not at sellers. There is no listing fee and nothing to publish: every listing shown comes from the marketplace it was originally posted to.
Which marketplaces does keenfind search?
Every market gets the international marketplaces that operate there, plus the local classifieds site people in that country actually use.
| Market | International marketplaces | Local site |
|---|---|---|
| Belgium | eBay, Vinted, Facebook Marketplace | 2ememain, 2dehands |
| Netherlands | eBay, Vinted, Facebook Marketplace | Marktplaats |
| France | eBay, Vinted, Facebook Marketplace | Le Bon Coin |
| Germany | eBay, Vinted, Facebook Marketplace | Kleinanzeigen |
| Spain | eBay, Vinted, Facebook Marketplace | Wallapop |
| Italy | eBay, Vinted, Facebook Marketplace | Subito |
| Portugal | Vinted, Facebook Marketplace | OLX |
| United Kingdom | eBay, Vinted, Facebook Marketplace | Gumtree |
The local site is the part most aggregators leave out, and it is where most secondhand items in a country are actually posted. A search in France that does not reach Le Bon Coin, or one in Germany that does not reach Kleinanzeigen, has missed most of what is for sale there.
Searching two sites at once
Second-hand prices by market
How does keenfind work?
A search goes through the same steps no matter which marketplaces it reaches.
- Parallel search
- Every selected marketplace is queried at the same time rather than one after another, so a search across several sites still comes back in a few seconds.
- Deduplication
- The same item posted on more than one marketplace is combined into a single result instead of appearing twice.
- Price and distance filtering
- Results can be narrowed to a price range and to a distance from a postcode. A result just outside the chosen range is labelled as such rather than hidden outright.
- Match check (AI relevance grading)
- On request, an AI model reads each result against the search that produced it and grades how well it actually matches, so a search for a road bike is not buried under bike parts and children's bikes.
- Saved alerts
- A search can be saved as an alert. It reruns on a schedule, grades new listings the same way, and notifies by email, Telegram or a browser push notification when something genuinely new matches. Every notification carries a one-click unsubscribe for that alert.
How much does keenfind cost?
Searching keenfind is free, with or without an account. The tiers differ in how many saved alerts a person gets and how often each one is checked, because a saved alert is the part of the product that costs money to run.
| Plan | Price | Searches | Alerts | Self-serve checkout |
|---|---|---|---|---|
| Free | €0/month | 5 searches per day | 1 alert for 48 hours, checked every 12 hours | No |
| Plus | €3.69/month | Unlimited searches | 10 alerts, checked every hour | Yes |
| Pro | €19/month | Unlimited searches | 100 alerts, checked every 30 min | Yes |
The tier without self-serve checkout is offered by direct arrangement instead.
How does keenfind handle privacy?
keenfind loads no fonts or scripts from a third-party content delivery network, so viewing a page does not hand a visitor's IP address to an unrelated company. Anything beyond what is strictly necessary to run the site, such as remembering a visitor across searches, asks for cookie consent first.
An account holder can export everything keenfind holds about them, or delete the account and everything tied to it, from the account page, without contacting anyone.
Full detail is in the policies below.
Who runs keenfind?
keenfind is an independent project, run by one person from Belgium. It is not a company, and it is not owned by or affiliated with any of the marketplaces it searches. Questions, bug reports and requests for a marketplace it does not yet cover go to the address below, and every message gets read.
hello@keenfind.io