The maths on traditional listing sites is brutal. Eight items visible at once, two seconds per item, and you've covered a stall in four minutes before reaching for the scroll bar. Rummij puts roughly a hundred items on the same screen area.

You scan it the way you'd scan a market stall or a page of a catalogue: quickly, laterally, writing off most things at a glance. The ones worth stopping for stand out immediately.

More items means more finds

Denser browsing surfaces more serendipitous finds. The vintage jacket you didn't know to search for appears three rows down. The density also means you can rule things out faster — a full browse of a stall takes seconds, not minutes.

Pair that with a personalised feed and you get a browsing experience closer to Instagram's algorithmic scroll than to a traditional e-commerce search results page.

Browsing online used to be like shopping through a keyhole.

Open the marketplace and see how much ground you can cover.