Zotero vs Paperpile: a direct comparison

Paperpile and Zotero offer different takes on reference management. Zotero is a free, open-source tool you install on your desktop, backed by a large community of researchers. Paperpile is a paid, web-native tool that runs in your browser and integrates with Google Docs and Word.

To help you make up your mind, this guide puts both tools head-to-head, with detailed comparisons of their features, pricing, and more.

Last updated: August 2026

Zotero vs Paperpile: The verdict up front

There is no single winner, only a better fit per situation. Zotero is stronger for researchers who prioritize cost, openness, offline desktop work, and customization. Paperpile is stronger for researchers and teams who want a streamlined, browser-first workflow with built-in literature discovery, unlimited storage, managed collaboration, and professional support.

If the tool you’re using already works well, switching rarely pays off. The rest of this page covers the differences between them.

Why choose Zotero

Zotero is open-source software run by a nonprofit organization. It offers a local-first library and provides standard data export options.

Choose Zotero if:

• You want free, open-source reference-management software.
• You need a full desktop library that works offline on Mac, Windows, or Linux.
• You use LibreOffice.
• You want to have detailed control over your reference manager with community plugins.

Bear in mind that syncing more than 300 MB of attachments through Zotero Storage requires a paid plan. WebDAV is available for personal libraries, but group-library files use Zotero’s storage.

Why choose Paperpile

Paperpile is founder-led and is one of the very few remaining independent software companies in the reference management category. Paperpile supports data export using industry standard formats (RIS, JSON, BIB) and PDFs can be exported. Users always remain in control of their data.

Choose Paperpile if:

• You want a reference manager that works in the browser with minimal setup. Paperpile does not depend on community plugins for core features like file back-up to cloud storage providers.
• You want unlimited storage without comparing attachment-storage tiers.
• You value built-in literature search, metadata completion, incomplete reference detection, or want common BibTeX and LaTeX workflows to work without maintaining community plugins.
• You need shared libraries with flexible controls, team administration, or professional support.

Paperpile requires a subscription, its main library is not a fully offline desktop app, and it does not support LibreOffice or a third-party plugin ecosystem.

Zotero vs Paperpile at a glance

Zotero vs Paperpile: Platform compatibility

Zotero is built around a desktop app for Mac, Windows, and Linux, with its web library serving as a lighter companion rather than a full replacement. The desktop app is powerful, especially for large libraries, local files, imports and exports, plugins, citation workflows, and offline access, but it also means users often need installation rights and local setup.

Paperpile takes a more modern web-first approach. It gives users a full-featured research library in the browser, with no desktop installation, no manual updates, and no need for third-party plugins to handle the core workflow. Researchers can save a paper in Chrome, Safari, or Firefox, annotate it on an iPad, open it on a lab computer, or continue reading from another device without thinking about where the files live or whether the right app is installed.

Zotero vs Paperpile: Storage and cost

Zotero is free to get started with. However, synced file storage beyond 300 MB on Zotero’s servers is paid: pricing tiers are 2 GB for $20/year, 6 GB for $60/year, and unlimited for $120/year.

A library of PDFs outgrows 300 MB quickly (roughly a few hundred PDFs), so most people who sync attachments across devices end up on a paid tier. A metadata-only library can stay free forever.

If you don’t want to pay, you can use other cloud storage providers as a workaround. Zotero warns against syncing the main data directory through cloud folders because it may corrupt the database.

Paperpile’s individual academic plans are $4.15/month or $5.75/month, billed annually, after a 30-day trial, and there are no storage limits on any plan. Your library of PDFs live where you choose: Paperpile-hosted storage, your Google Drive, or OneDrive.

Zotero vs Paperpile: Browser extensions, online search and literature discovery

Zotero relies on the Zotero Connector to save references from the web, which works well across major browsers and supports useful formats like EPUBs and website snapshots. However, Zotero does not offer built-in online search inside the app, so users typically search in external databases or websites and then send items to Zotero through the connector.

Paperpile integrates literature discovery more directly into the research workflow. Users can search online for papers, save metadata and PDFs when available, and organize references into folders, labels, and shared libraries without leaving the app. The Paperpile extension also works across major browsers (Chrome , Safari, → Firefox) and appears naturally in tools researchers already use, including Google Scholar, PubMed, arXiv, Semantic Scholar, ResearchRabbit, Litmaps, Consensus, and even AI tools like ChatGPT, Claude, Gemini, and NotebookLM.

Zotero vs Paperpile: Library management

Zotero can add items by identifier such as a DOI, ISBN, or PubMed ID, but it does not auto-complete metadata from a title or URL when you create a reference by hand. Zotero also has no dedicated starred or favorites list, and it does not automatically flag incomplete references.

Paperpile is designed to keep the library complete with less manual cleanup. When you enter a reference by hand, it can auto-populate metadata from a title, URL, or DOI. Paperpile also includes starred references, automatic detection of incomplete references, and metadata auto-updates. Both Paperpile and Zotero support bulk editing of references.

Zotero vs Paperpile: LaTeX and BibTeX support

Both Zotero and Paperpile support LaTeX and BibTeX workflows, and both integrate with Overleaf. Zotero has a strong ecosystem through the Better BibTeX plugin, which is popular among advanced LaTeX users who want detailed control over citation keys and export behavior.

Paperpile focuses on making common BibTeX and LaTeX workflows work out of the box. Citation key customization, BibTeX export formatting, export download links and Google Drive export workflows are included without requiring a complex plugin setup. This makes Paperpile appealing for users who want reliable BibTeX support without maintaining extra tools.

Zotero vs Paperpile: Collaboration and shared libraries

Zotero supports collaboration through groups, which can be private or public and can include unlimited members. This makes Zotero useful for academic teams, especially when they are comfortable using Zotero’s cloud storage.

The main limitation of Zotero Groups is that group file storage draws from the group owner’s account, so shared PDF libraries depend on one person paying for enough Zotero storage.

Paperpile is designed around shared research workspaces. Teams can create shared folders and shared libraries, control exactly what is shared, share PDF annotations, and assign roles such as Viewer, Editor, or Admin.

Because Paperpile has no storage limits, sharing PDFs does not create the same billing question for whoever owns the library, making it easier to set up a central repository for a lab, company, or research group.

Zotero vs Paperpile: Team and enterprise use

On file storage, the two products are more similar than they first appear. Neither Zotero groups nor Paperpile shared libraries can be backed by existing corporate storage such as SharePoint or Teams, and neither can be synced or backed up to third-party cloud storage like WebDAV, Google Drive or OneDrive. Collaborative files live in each vendor’s own cloud.

Personal libraries are a bit more flexible—Zotero can use WebDAV or linked files, and Paperpile can sync a personal library to Google Drive or OneDrive—but those options do not extend to groups or shared libraries.

Zotero does offer organization plans, but they are storage subscriptions on top of free software rather than a managed team product.

• Zotero Lab is for a small set of users. An admin maintains an email list, and it covers any number of users up to 15 with unlimited personal and group storage.
• Zotero Institution is for larger organizations. It automatically gives unlimited storage to anyone with a verified email on the institution’s domain, with no user-by-user management, and is priced on the organization’s FTE.
• In both cases, users still own their individual Zotero accounts. The organization is mainly buying unlimited cloud storage so people can sync files and use group libraries.

Teams in Paperpile are a product subscription aimed at research groups and organizations, not a storage add-on. A team owner creates a team, invites people and manages seats. Each person on a team needs a seat.

The Enterprise and Institutions plan adds organization-wide options such as SAML single sign-on, vendor security reviews, custom agreements, and either seat-based billing or an unlimited site license priced on FTE. The closest parallel to Zotero Institution is Paperpile’s site license, but Paperpile is selling a managed research workspace—seats, permissions, shared libraries, and admin controls—rather than unlimited storage for a free desktop app.

Paperpile is stronger for organizations that need managed collaboration and security review. Shared libraries, team subscriptions, seat management, admin/member roles and permissions, and sharing controls are part of the product. Paperpile also documents security practices such as encryption at rest, regular backups, least-privilege integration permissions, incident processes, penetration testing, and vendor security reviews for large customers.

Zotero vs Paperpile: Customer support

Zotero’s support model is centered on public forums, which are useful for community troubleshooting but may not meet the needs of organizations that expect direct, personalized support. For institutions, companies, or teams rolling out a research tool across many users, the lack of dedicated support can be a deciding factor.

Paperpile treats professional support as part of the product. Users can get help from a dedicated support team, with input from QA and engineering when needed. This gives teams and organizations a clearer path for onboarding, troubleshooting, and resolving product issues without relying only on public forum discussions.

Where Zotero is the better tool

• You want free and open source. Zotero is developed by a nonprofit, the code is public, and nothing about your library depends on a company staying in business. Paperpile is a commercial product.
• You work offline. Zotero is a desktop application with a full local copy of your library. Paperpile runs in the browser, and while the mobile apps store PDFs for offline reading, the main app requires an internet connection.
• You want to extend the tool. Zotero has a community plugin ecosystem; Paperpile has none.
• You cite in LibreOffice. Zotero has a plugin for it; Paperpile does not.

If most of that list describes you, use Zotero.

Where Paperpile is the better tool

• You want a full-featured web app. Paperpile works in the browser with no desktop installation or manual updates, so you can access the same library across computers and operating systems. Zotero’s web library offers fewer features than its desktop app.
• You want research and library management in one place. Paperpile includes built-in literature search, metadata auto-completion, incomplete-reference detection, metadata updates, and starred references. Zotero relies more heavily on external search tools for literature discovery and manual library maintenance.
• You want the essentials to work without community plugins. Paperpile includes common workflows such as BibTeX export formatting and sync with Google Drive out of the box. Zotero offers more advanced customization, but some features like third-party cloud storage back up and citation key customization require third-party plugins.
• You collaborate with a team. Paperpile combines unlimited storage with shared libraries, team settings, and sharing controls. Zotero supports group libraries, but shared file storage is charged to the group owner’s account.

If most of that list describes you, use Paperpile.

Switching from Zotero or Paperpile

Moving from Zotero to Paperpile is easy. Paperpile reads Zotero library exports directly, along with EndNote, Mendeley, RIS, and BibTeX. The migration guide walks through it step-by-step.

Leaving Paperpile is possible too. You can export your library as BibTeX or RIS, save your PDFs to your computer and your PDFs are already in your own Google Drive or OneDrive if you chose to store them there.

If you’re comparing Zotero with other tools, we also compare:

• Zotero vs Mendeley
• Zotero vs Papers
• Zotero vs JabRef

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