5 Best Mendeley Alternatives for Researchers (2026)

Mendeley remains free, but Elsevier's 2022 transition from Mendeley Desktop to Mendeley Reference Manager broke many researcher workflows: the Word plugin was unmaintained on macOS for an extended period, the new app dropped some annotation features, and group-sharing limits tightened. If you used Mendeley for collaborative PDF reading or Word citation insertion and the experience has degraded, the alternatives below cover those scenarios.

The right replacement depends on which Mendeley feature you most relied on: PDF library and groups (Zotero), Google Docs writing (Paperpile), Word integration (EndNote), visual reading (ReadCube), or just citation lookup without a managed library (CiteMe).

Same methodology as our broader citation-tool comparison: install friction, free-tier limits, citation-style coverage, source-database backbone, and Word/Docs integration. We tested each tool against the Mendeley workflow specifically — can you migrate your library? Can you replicate the in-Word citation insertion? How do groups translate?

Each pick targets a different Mendeley use case. Read the tradeoff line before deciding.

• 1. Zotero — Free, desktop + browser. Best for: PDF library + groups (the closest 1:1 Mendeley replacement). Database: CrossRef + OpenAlex via translators. Tradeoff: 300 MB free tier; storage above costs $20+/year.
• 2. Paperpile — $2.99/month, browser-first. Best for: Google Docs writers leaving Mendeley's Word workflow behind. Database: Google Scholar + CrossRef. Tradeoff: paid (no free tier); Google Docs is the strongest integration, Word is weaker.
• 3. EndNote — $250 one-time. Best for: Word-heavy academics whose institution may license it. Database: Web of Science. Tradeoff: cost; the deepest Word integration of any tool.
• 4. ReadCube Papers — $5/month. Best for: researchers who valued Mendeley for PDF reading specifically. Database: CrossRef + publisher partnerships. Tradeoff: paid; the experience is reading-first, library is secondary.
• 5. CiteMe — Free, browser-only. Best for: replacing the "I just need one citation" Mendeley use case without a managed library. Database: OpenAlex, PubMed, CrossRef, Semantic Scholar. Tradeoff: not a Mendeley replacement for groups, PDFs, or annotations — solves the citation problem only.

Mendeley Reference Manager exports to BibTeX, RIS, and EndNote XML. Zotero, Paperpile, EndNote, and ReadCube all import at least one of these formats — Zotero handles all three. The export sits in Tools > Export. Test on a small subset before migrating the full library; some annotation metadata does not survive round trips.

CiteMe does not host a library, so there is no migration target. Use CiteMe alongside whichever library tool you choose — it is the citation-lookup tool, not the reference manager. Many researchers run Zotero (long-term library) plus CiteMe (one-off citations from anywhere) and never need a single tool to do both.

Is Mendeley still being developed? Yes — Mendeley Reference Manager receives ongoing updates, but the desktop+web split remains awkward and some features from Mendeley Desktop have not returned. If your workflow depends on those features, switching is reasonable.

Which alternative has the best free tier? Zotero — 300 MB free storage with unlimited references and unlimited group joining (group creation has limits at the free tier). CiteMe is free with no signup at all but does not store a library. Paperpile and ReadCube have no free tier; EndNote is paid with a 30-day trial.

Can I use my Mendeley Word add-in with another tool? No — each tool has its own Word add-in. EndNote's is the most mature; Zotero ships a free one. CiteMe has a Word add-in built specifically for citation insertion without library hosting.