Semantic search across 20M+ PubMed articles — and PubMed's own results shown side by side.
Describe your topic in your own words. Papedex compares the meaning of your query with all 20M abstracts, so it finds papers that match the idea even when they never use your exact terms.
Any search can show PubMed's results next to Papedex's. See the overlap, see what each one missed, and judge for yourself.
Semantic and keyword search over titles and abstracts, plus author search, fused into a single ranking. Recency and journal impact act as tie-breakers, never as filters.
New PubMed records are added every night. Coverage runs from 2005 to today, with exact
title:, author:, journal: and year: filters when you need them.
Paste the paragraph you're stuck on, or describe the paper you half-remember. Then turn on "Compare with PubMed" and see what each engine finds.