Zotero vs Mendeley: Browser Importers and Citation Workflow Compared

Zotero or Mendeley: which should you use?

Use Zotero unless something specific pulls you to Mendeley. Zotero is independent, open source and extensible; Mendeley is owned by the publisher Elsevier, requires an account and has narrowed its feature set since replacing Mendeley Desktop with Mendeley Reference Manager.

The Reddit and PhD-forum consensus lines up with this: Zotero wins on control and longevity, Mendeley on storage and familiarity for people who started with it years ago. If you only need a quick bibliography for one essay, neither is necessary; a web citation generator does the job, as covered further down.

How do Zotero Connector and Mendeley Web Importer compare?

Zotero Connector is the stronger importer. It uses community-maintained translators for specific sites, so on journal pages, library catalogues, news sites and Google Scholar it usually pulls structured metadata and the PDF in one click. Mendeley Web Importer handles major publishers and databases well but has less site-specific coverage.

The Connector saves directly into the Zotero desktop app when it is open, into the selected collection. If the app is closed, it saves to your online library at zotero.org, provided you are signed in. Mendeley Web Importer always works through your Mendeley account in the browser.

1. Install Zotero Connector from the Chrome Web Store and pin it via the puzzle-piece Extensions icon.
2. Open the Zotero desktop app and click the collection you want new items to land in.
3. Go to an article page (not the PDF viewer) and click the Connector icon, or press Ctrl+Shift+S on Windows, Linux and ChromeOS or Cmd+Shift+S on Mac.
4. Watch the icon: a journal-article or book icon means a translator found structured metadata; a grey page icon means it saved only a web page snapshot.
5. Open the item in Zotero and check authors, year, journal and DOI before citing it.

Our full walkthrough of the Connector, including multi-item saves from search results, is in how to use Zotero in Chrome.

What permissions do the Zotero and Mendeley browser extensions need?

Both importers need to read the pages you visit, because they have to detect citation data on any journal, library or news site. That is broad access, but it matches the job, and neither needs it to do anything beyond reading metadata and saving what you ask.

The practical difference is where your saves go. Zotero Connector talks to a desktop app on your own machine first, and only uses Zotero's servers if you sync. Mendeley Web Importer sends saved items to your Elsevier-hosted library, because that is where Mendeley stores everything.

• Page access: both read page content to find titles, authors and DOIs.
• Local connection: Zotero Connector communicates with the running Zotero app on your computer.
• Account sign-in: Mendeley Web Importer requires you to be signed in to Mendeley.
• PDF downloads: both can fetch the PDF when your library or subscription gives you access.

If you only use the importer on a few databases, set Site access to On click so it reads a page only when you press the button.

Which gives more accurate citations?

Neither is more accurate by design; accuracy depends on the metadata each captures. Zotero's site translators tend to grab cleaner records from a wider range of sources, while both apps format citations using the same Citation Style Language (CSL) standard, so APA, MLA, Chicago and Vancouver output should match once the underlying data is correct.

Most citation errors come from three places: saving a web page snapshot instead of the article record, PDFs with poor embedded metadata, and conference papers or preprints that list authors inconsistently. Both apps can look up a record from a DOI or ISBN, which is the fastest fix.

• Check the item type: a journal article saved as a web page will cite the URL, not the journal.
• Fix author names stored as a single field so initials format correctly.
• Confirm the year, volume, issue and page range against the publisher page.
• Use title case or sentence case consistently; APA wants sentence case for article titles.
• Add missing DOIs, since many styles now require them.

Zotero's Retrieve Metadata for PDF option on a dropped-in PDF and its Add Item by Identifier wand button are the two tools that save most clean-up time. Mendeley offers similar DOI lookup inside an item's details panel.

How do citation plugins for Word and Google Docs compare?

Zotero covers more writing tools. It installs plugins for Microsoft Word and LibreOffice with the desktop app, and Google Docs integration arrives through the Zotero Connector itself. Mendeley's current plugin, Mendeley Cite, is an add-in for Word.

Microsoft Word

Both work. Zotero adds a Zotero tab to the ribbon; Mendeley Cite runs as a Word add-in panel tied to your online library.

Google Docs

Zotero adds a Zotero menu to Docs once the Connector is installed in Chrome. Check Mendeley's help pages for its current Docs options before committing a team to it.

LibreOffice

Zotero ships a LibreOffice plugin. Mendeley's legacy LibreOffice plugin belonged to the retired Mendeley Desktop.

LaTeX and Markdown

Zotero users commonly export BibTeX, often via the Better BibTeX community plugin, for Overleaf or Pandoc. Mendeley can export BibTeX too, with less automation.

One catch: citations inserted by one manager are not editable by the other. If you co-author a paper, agree on one tool before anyone inserts a citation, or you will end up retyping references at submission time.

Is Zotero or Mendeley free, and how much storage do you get?

Both are free to use. The difference is cloud file storage: Zotero's free tier is small and paid storage plans add more, while Mendeley's free tier is larger. Metadata syncing is unlimited in Zotero; only attached files such as PDFs count against storage.

Zotero has a workaround that Mendeley lacks: you can sync attachments through your own WebDAV server, which many universities and some cloud providers offer, and keep only the metadata on Zotero's servers. That makes a large PDF library free if you already have WebDAV space.

Exact storage allowances and prices change, so confirm on the Zotero storage page and the Mendeley site before deciding on cost alone.

Is Mendeley outdated? Ownership, privacy and the desktop retirement

Mendeley is not dead, but it is less capable than it was. Elsevier retired the long-running Mendeley Desktop in favour of Mendeley Reference Manager, a newer app focused on reading, annotating and citing, and some older features, community groups and third-party integrations did not carry over.

Ownership is the other concern. Elsevier bought Mendeley in 2013, and many researchers are uneasy about a major journal publisher holding data on what they read. In 2018 Mendeley encrypted its local database, which made it harder for other tools to read your library directly and fuelled a wave of migrations to Zotero.

None of that makes Mendeley unsafe. It still works well for reading and citing inside Word, and institutions with Elsevier agreements often support it. But if you care about exporting your library in ten years, Zotero's open formats and non-profit governance are the lower-risk bet.

And EndNote? It is a paid Clarivate product with deep Word integration and is common in medicine and at universities that license it. For most students paying their own way, Zotero covers the same ground at no cost.

What are the disadvantages of Zotero?

Zotero's weak spots are its small free storage, a desktop app that looks busy at first, and a reliance on community plugins for power features. None is a dealbreaker, but they explain why some people still pick Mendeley.

• Storage: a sizeable PDF library outgrows the free tier quickly unless you set up WebDAV.
• Learning curve: collections, tags, saved searches and item types take a session or two to learn.
• Plugin maintenance: favourites like Better BibTeX depend on volunteers and can lag major Zotero updates.
• Web library: zotero.org is fine for viewing and light edits but is no replacement for the desktop app.
• No built-in AI: summarising and chatting with papers needs a separate tool.

Is Zotero still the best? For a free, general-purpose reference manager, yes: nothing else combines open source, strong capture, multi-editor plugins and portable data. Zotero vs Obsidian is not really a contest; Obsidian is a note app, and many researchers use both, citing from Zotero and writing notes in Obsidian.

The browser add-ons below round out either workflow, whether you need a quick citation or a quieter page to read on.

How do you switch from Mendeley to Zotero?

Zotero has a built-in Mendeley importer that pulls your references, collections and PDFs straight from your online Mendeley library. It works the same on Windows, Mac and Linux.

1. Make sure your Mendeley library is fully synced to your account.
2. Install Zotero from the official download page and open it.
3. Choose File → Import…, then select Mendeley Reference Manager (online import) and click Next.
4. Sign in with your Mendeley account when prompted and let Zotero download items and files.
5. Review the new import collection, then drag items into your own collections.
6. Install the Zotero Word plugin and, for existing papers, keep the Mendeley add-in until those documents are finished.

Annotations and tags usually come across, but spot-check a few heavily annotated PDFs before deleting anything from Mendeley. Documents already citing with Mendeley Cite will not convert automatically.

For more research tools we have reviewed, browse the research extensions category, see how we score picks in our methodology, or read more comparisons on the blog.