Hop any source into your workspace.
Hopper
Capture webpages and PDFs with full metadata — straight into your Ubik workspace. One click, zero friction.
Smart Detection
Automatically identifies PDFs, journal articles, conference papers, theses, reports, and webpages — extracting metadata from DOIs, citation tags, and structured data.
One-Click Capture
Click the toolbar icon and hop. PDFs are captured at the source level, bypassing publisher viewers. Webpages are printed to clean PDFs.
Rich Metadata
Title, authors, DOI, journal, date, and publisher are extracted automatically from meta tags, JSON-LD, and Dublin Core — ready for your bibliography.
Works Everywhere
Google Scholar, Semantic Scholar, arXiv, PubMed, Wiley, Springer, IEEE, and any webpage. Hopper handles publisher quirks so you don't have to.
Syncs to Studio
Hopped sources land in your local Downloads folder and sync into Ubik Studio automatically — ready for annotation, notes, and agent workflows.
Privacy-First
Hopper runs entirely in your browser. No data is sent to external servers. Sources are saved locally and only you control what syncs.
How it works
Browse
Visit any webpage, journal article, or PDF.
Hop
Click the Hopper icon in your browser toolbar.
Work
Source appears in Ubik Studio with full metadata.