What is Onhand?
Onhand is an open-source browser extension that answers questions about the page you are reading. It highlights the relevant passage, adds margin notes and explains it in a side panel. It works on Chrome, Firefox and Edge, is free to start and needs no account.
Key facts
- Pricing
- Open source
- Category
- Research
- Website
- https://useonhand.com/
- Listing updated
- Nov 11, 2026
Onhand FAQ
What is Onhand?
Onhand is an open-source browser extension that answers questions about the page you are reading. It highlights the relevant passage, adds margin notes and explains it in a side panel. It works on Chrome, Firefox and Edge, is free to start and needs no account.
What does Onhand cost?
Onhand pricing is listed as Open source.
What are alternatives to Onhand?
Research alternatives to Onhand include ChatPDF, Scholarcy, ResearchGate, Consensus, AskYourPDF and Scite.