Paperpile vs Zotero (2026): which should you pick?
As of Nov 13, 2026, Zotero grades higher than Paperpile: 2.8 against 2.2 out of 4.0.
Checked Nov 12, 2026 and Nov 13, 2026 · graded Nov 12, 2026 and Nov 13, 2026 by ToolGPA
Zotero grades higher on value for money and the free plan. They get the same grade on features, ease of use and platforms.
Price, platforms and features side by side. The table says where each price was read and when.
Paperpile
Reference manager built around Google Drive, Docs and Word
Zotero
Free, open-source reference manager from a nonprofit
Which one is for you
Pick Paperpile if
- Fits if you write in Google Docs and keep your files in Drive
- Works for students and researchers who want citations dropped into Word
Look elsewhere if
- Skip it if you want a plan that stays free, as there is only a 30-day trial
- Tight if you pay monthly, as there is no monthly billing and all plans bill annually
- Watch out: full-text PDF search, notes, annotations and shared libraries need Expert
- Watch out: sign-up is through a Google account, and the page says only Chrome can be used to sign up
- Skip it if you use Safari or Firefox, as support is described as a beta coming later
Pick Zotero if
- Fits if you want a no-cost reference library that works with Word or Google Docs
- Works for a group that wants shared libraries on a nonprofit tool
Look elsewhere if
- Skip it if you want AI summaries or chat, as none is described on its pages
- Tight if you sync lots of PDFs: 300 MB is free, then $20 a year for 2 GB
- Watch out: group libraries draw on the group owner's storage
- Watch out: no web app is listed in the platforms
How we grade them
| 2.2GPAPaperpileFair | 2.8GPAZoteroGood | |
|---|---|---|
| Value for money | CRegular is $8.30 a month on annual billing, above the $7.92 that starts the cheaper quarter of research tools. Expert is $11.50. | AThe app is free and open source, with every feature in the free version. Paid plans only buy storage: $20 a year for 2 GB, $60 for 6 GB and $120 for unlimited. |
| Free plan and trial | CA 30-day free trial, with the page not saying a card is needed, and no free plan after it. | BThe full app is free, with 300 MB of synced file storage. A few hundred PDFs will go past that, but you can use it unsynced. |
| Features | CSaving papers, a library, citations in Word and Docs, PDF reading and BibTeX. Full-text search, notes, annotations and shared libraries are not in Regular. | CCollects from the web, collections, tags, saved searches, citations in your editor, sync and shared libraries. As an AI research tool it has a gap, since no built-in AI chat or summaries are described. |
| Ease of use | CNo store rating on record. Sign-up is through a Google account and Chrome. | CNo store rating on record. You install the app, a browser connector and a word processor plug-in, and learn collections and tags. |
| Platforms and integrations | BWeb, an extension, iPhone and Android, with Docs, Word, Drive, Overleaf, OneDrive, Scopus and Web of Science. No desktop app. | BMac, Windows, Linux, iPhone and Android, with Word, LibreOffice and Google Docs. |
| Best for | a reference manager for Google Docs and Word | collecting and citing sources for free |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: Paperpile and Zotero. How we grade
Price against what you get
Paperpile starts at $8.30 a month and scores 2.3 out of 4 on features, ease of use and platforms. Zotero starts at $1.67 a month when paid by the year and scores 2.3.
They score the same, and Zotero starts $6.63 a month lower. Of the other AI research tools on the chart, 12 score higher than Paperpile for less, and 4 score higher than Zotero for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
- Zotero is open source, according to its own site.
- Zotero also covers file sync.
At a glance
| Paperpile | Zotero | |
|---|---|---|
| Pricing | Free trial | Free plan |
| Starts at | $8.30 per month, billed annually | $20 per year for 2 GB of file storage |
| Free plan | None | The app is free; syncing files uses 300 MB of free storage. Group libraries draw on the group owner's storage. |
| Free trial | 30-day free trial | None listed |
| Web | ||
| macOS | ||
| Windows | ||
| Linux | ||
| iOS | ||
| Android | ||
| Browser extension | ||
| Made by | Paperpile LLC | Corporation for Digital Scholarship |
| Price read from | paperpile.com | zotero.org |
| Checked | Nov 13, 2026 | Nov 12, 2026 |
Worth knowing
Paperpile
- All plans are billed annually; the pricing page says there is no monthly billing.
- Sign-up is through a Google account, and the page says only Chrome can be used to sign up.
- Full-text PDF search, notes, annotations and shared libraries are not in the Regular plan.
- Safari and Firefox support is described as a beta that is coming later.
Zotero
- Only 300 MB of file storage is free; larger PDF collections need a paid storage plan.
- The pages read for this entry describe no built-in AI chat or summarizing feature.
- Paid plans buy storage only; every feature of the app is already in the free version.
Key features
Paperpile
- Save papers from the web
- A browser extension saves papers and PDFs from publisher pages and academic databases, and extracts metadata from PDFs you upload.
- Library organization
- Folders, labels, duplicate detection and merging, and automatic fixing of missing metadata keep a large library tidy.
- Citations in Word and Google Docs
- Plugins insert citations and bibliographies in more than 10,000 styles. Custom styles need the Expert plan.
- PDF reading and annotation
- Highlight and note PDFs in the app. Notes and PDF annotations are Expert features, as is collaborative annotation.
- BibTeX and LaTeX
- Export and import BibTeX, customize citation keys, and on Expert keep a .bib file synced to Google Drive or Overleaf.
- Sharing
- Share with private links on every plan. Shared folders and shared libraries with access permissions are on Expert.
Zotero
- Collect from the web
- Zotero senses articles, books and news stories on pages you browse and saves the full reference with one click.
- Collections, tags and saved searches
- Sort items into collections, tag them with keywords, or create saved searches that fill automatically as you add material.
- Citations in your editor
- Inserts references and bibliographies in Word, LibreOffice and Google Docs, with more than 9,000 citation styles.
- Optional sync
- Syncs your library and files across devices, and lets you open your research from any web browser.
- Shared libraries
- Share a library with as many people as you like at no cost, for co-writing or course materials.
- Open source
- The vendor describes Zotero as open source and run by a nonprofit with no financial interest in your data.
Plans
Paperpile
Regular$8.30
per month, billed annually
Reference collection, PDF storage, citations in all major styles and BibTeX, and basic Word and Google Docs integrations.
Expert$11.50
per month, billed annually
Adds full-text search across PDFs, notes and annotations, shared folders and libraries, and any file type.
Enterprise and InstitutionsCustom
Everything in Expert plus SAML single sign-on, a custom MSA and SLA, vendor security reviews and HIPAA support.
Zotero
Free$0
The full app, with 300 MB of file storage for syncing PDFs, images and snapshots.
2 GB$20
per year ($1.67 per month)
2 GB of file storage.
6 GB$60
per year ($5 per month)
6 GB of file storage.
Unlimited$120
per year ($10 per month)
Unlimited file storage.
Ways to pay less
Paperpile
- Education
50% academic discount
Students, faculty, researchers and eligible nonprofits get 50% off, so Regular is $4.15 and Expert $5.75 per month billed annually.
- Other savings
Group discount on Expert
Expert plans get an automatic group discount of up to 20%, growing with the number of seats.
Zotero
No public discounts listed.
Common questions
Which is cheaper, Paperpile or Zotero?
As of Nov 13, 2026, Zotero is cheaper to start with: $1.67 a month when paid by the year, against $8.30 a month for Paperpile. Paperpile starts at $8.30 per month, billed annually, and Zotero starts at $20 per year for 2 GB of file storage.
Which has a free plan, Paperpile or Zotero?
As of Nov 13, 2026, only Zotero has a free plan. Paperpile does not, though it has a free trial.
Which platforms do Paperpile and Zotero run on?
As of Nov 13, 2026, only Paperpile lists a web app and a browser extension and only Zotero lists macOS, Windows and Linux apps. Both list iOS and Android apps. A platform missing from a listing is one its maker's pages did not mention.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.