What Paperpile is
Paperpile is a paid reference manager that runs in the browser and stores your PDFs in your own Google Drive. It captures references from journal pages, organises them into folders and labels, and inserts citations into Google Docs, Word, or a .bib file for LaTeX.
The design choice that defines it: Paperpile does not try to be a desktop application with a web companion. It is a web application first, built by a small team with an unusual amount of attention paid to speed and interface. Search is instant, the keyboard shortcuts are real, and nothing about it feels like an academic tool from 2009. You pay for that, and there is no free tier beyond a trial — which is the honest trade at the centre of this entry.
Why researchers use it
- Google Docs citations that behave — the add-on is the smoothest citation experience in any collaborative word processor, and it is the single reason most users switch.
- PDFs live in your Drive — files sit in a folder you own and can inspect, rather than in a vendor’s opaque store.
- Speed — search across thousands of references returns as you type, which sounds trivial until you have used a manager where it does not.
- Genuinely good mobile apps — iOS and Android clients that are pleasant to read and annotate in, which is not true of most competitors.
- A real
.bibexport for Overleaf — your library can be linked into an Overleaf project and stays current as you add references.
Where it fits in a research workflow
Paperpile sits between reading and a collaborative draft, and it is optimised for one particular route: browser capture → Paperpile library → Google Docs manuscript with live citations. If that is how your group writes, it is the strongest option in this directory.
The LaTeX route works too, through a .bib export that Overleaf can consume directly, but this is Paperpile’s second-best path rather than its purpose. Compare with Zotero, which treats Word, Google Docs, LibreOffice, and LaTeX as equal citizens. And note what Paperpile does not connect to: there is no mature Obsidian integration, so if your literature notes live in a Markdown vault, you are building that bridge yourself.
Getting started
Twenty minutes, and use the trial properly.
- Start the 30-day trial and install the Chrome extension. Capture references from the three journals you read most — capture quality on your sources is the only test that matters.
- Connect Google Drive and confirm where PDFs are being written. You want to know that folder path before you have 500 files in it.
- Install the Google Docs add-on and write a paragraph with three citations and a bibliography, in the style your target journal uses.
- The step people skip: export your library to BibTeX during the trial, not after. It is how you confirm the exit is real while you can still walk away for free.
Paperpile vs the alternatives
| Alternative | Does it better | Pick it if |
|---|---|---|
| Zotero | Free, open source, works in Word, LibreOffice, and LaTeX equally | Cost, independence, or LaTeX matter more than polish |
| Mendeley | Free 2 GB tier with cross-device PDF annotation | You want tablet reading without a subscription |
| EndNote | Enormous libraries and journal-specific output styles | You run health-sciences evidence synthesis |
| JabRef | Plain-text .bib in Git, no cloud at all | Your bibliography’s only destination is LaTeX |
Pick Paperpile if your group drafts in Google Docs and the interface quality is worth a subscription. Pick Zotero if you want the same job done for free in more places.
Cost, licensing, and your data
Subscription-priced per user, in the low single digits of dollars per month on an annual plan, with academic and student rates and a 30-day trial. There is no permanent free tier — this is the clearest difference from every other manager in this directory.
Where your data lives is unusually good for a commercial product: PDFs are stored in your own Google Drive under your own account, so if you cancel, the files remain yours in a folder you can already see. Reference metadata sits on Paperpile’s servers and exports cleanly to BibTeX and RIS. The dependency to weigh is not really Paperpile — it is Google. If your institution has restrictions on Google Workspace for research data, or you handle material that cannot sit in Drive, that constraint decides this before any feature comparison does.
The honest review
Strengths. Paperpile is the only reference manager here that feels designed rather than accumulated. Citation insertion in Google Docs is fast, correct, and never breaks the document — a claim that competitors in the Word ecosystem genuinely cannot make. For a lab that co-writes in Docs, that reliability alone is worth the subscription line.
Limitations. No free tier means no graceful exit for a student who stops paying: your references export, but the tooling stops. The product is tightly coupled to Chrome and Google, which is fine until your institution’s IT policy is not. Offline capability is thin compared with a true desktop application. And the ecosystem is small — where Zotero has a decade of community plugins bridging it to Obsidian, Quarto, and half a dozen note systems, Paperpile has an API and your own time.
Verdict. Adopt it if you write in Google Docs with collaborators and value your own hours enough to pay for a faster tool. Skip it if you are on a stipend, work primarily in LaTeX, or need to keep research data out of Google’s ecosystem. The condition that flips the answer is where your manuscripts are drafted — that single fact decides this more than any feature.
Common questions
Is there a free version of Paperpile?
No. There is a 30-day free trial, after which it is subscription-only, with reduced academic and student rates. If you need a permanently free reference manager, Zotero is the direct alternative.
Does Paperpile work with Overleaf and LaTeX?
Yes. Paperpile exports your library as a .bib file that can be linked into an Overleaf project and refreshed as you add references. It works well, but it is a secondary path — Paperpile’s centre of gravity is Google Docs.
Where does Paperpile store my PDFs?
In your own Google Drive, in a folder you control. That means cancelling your subscription does not take your files with it, but it also means Paperpile is only usable where Google Drive is permitted by your institution’s data policy.