Best Free Reference Managers in 2026: Free Tools and Paid Alternatives

For a general-purpose free reference manager, try Zotero first. For more free cloud attachment storage, compare Mendeley. If you mainly write in LaTeX, look at JabRef; Mac users can also consider BibDesk.

When choosing a free reference manager, establish whether you need a long-term paper library, a tool for maintaining Word citations, or a one-off bibliography for a course paper.

These needs do not always call for the same software. Free software, free cloud allowances, time-limited trials, and institution-funded access are four different cost structures.

This guide compares eight common tools: Zotero, Mendeley, JabRef, BibDesk, Paperpile, EndNote, EndNote Fusion, and Citavi. The first four offer ongoing free options; the remaining four are subscription, paid-license, or institutional alternatives.

At a glance: eight tools and what is free

Official resources: Zotero downloads, Mendeley downloads, JabRef, BibDesk, Paperpile, EndNote, EndNote Fusion, and Citavi. AI features and conditions are compared separately below.

Free, open-source options: Zotero, JabRef, and BibDesk

1. Zotero: a general starting point for collecting, reading, and citing

Zotero suits researchers building a long-term library and connecting web collection, PDF reading, and manuscript citations. Start simply: save a reference, check its metadata, insert a citation, then gradually add collections, tags, and notes.

Beginners should first try the native workflow without third-party plugins. Add translation, AI, note syncing, or LaTeX extensions as needed. Installing many at once makes troubleshooting harder.

The core software is free; official attachment syncing is tiered by cloud storage. The free allowance is 300 MB. Paid tiers are 2 GB for US$20/year, 6 GB for US$60/year, and unlimited storage for US$120/year. Local PDF capacity depends on your disk, not the cloud allowance. Zotero Storage

Try Zotero first if you have no established tool, expect to collect material over time, and want room to extend your research environment. Establish backups and syncing habits before complex automation.

2. JabRef: reference management around BibTeX / BibLaTeX

JabRef is a free, open-source, cross-platform tool using text-based bibliographic data. It suits researchers who want to maintain BibTeX / BibLaTeX libraries directly. Readable, portable files are useful in LaTeX projects built around .bib data. JabRef introduction

Prioritize JabRef if your main task is organizing .bib files. Compare Zotero too if you also need web capture, PDF reading, notes, and several writing environments.

Since version 6, JabRef has offered paper summaries and chat with configurable model services. Model costs and data handling depend on the selected provider and are separate from its free software license. JabRef AI documentation

3. BibDesk: BibTeX reference management on a Mac

BibDesk is a free, open-source bibliography manager for macOS. It manages bibliographic information, associated files, and links, with particular relevance to LaTeX users. BibDesk introduction

If you regularly write LaTeX on a Mac and want a native desktop tool, BibDesk is worth trying.

If you mainly use Word or maintain citations with collaborators on other operating systems, test writing and collaboration workflows before moving your whole library.

Mendeley's free plan: check storage and the current client

4. Mendeley: more free cloud storage, with separate feature tiers

The free plan provides 2 GB of personal storage. The official pricing page lists 5 Reading Assistant questions; eligibility and remaining questions depend on what your account currently shows. Do not assume this allowance renews monthly. Additional AI features depend on the paid plan. Current Mendeley plans

The 2 GB allowance is personal storage, not shared group storage. Mendeley lists separate limits for group storage, and personal storage upgrades do not increase shared space. Check the current group limits before choosing a team workflow. Free account and shared storage limits

This is a useful starting point if you need the same PDFs on multiple devices without immediately buying attachment storage. Compare your library size, file sizes, account access, and team environment alongside licensing models.

Many online experiences refer to the legacy Mendeley Desktop client. Current Reference Manager and the Word add-in Mendeley Cite are different product components, so match tutorials, compatibility guidance, and exports to your version. In 2025, Mendeley stated that Desktop would receive essential maintenance but no new feature development. Official maintenance statement

For free allowances, Word citation compatibility, and migration steps, read Zotero vs Mendeley.

Paid alternatives: subscriptions, individual licenses, and institutional access

5. Paperpile: for browser-based research and Google Docs

Paperpile suits researchers who mainly collect material in a browser and write in Google Docs. It also offers Word, mobile, and BibTeX integrations.

It provides a 30-day free trial, followed by a subscription. Academic pricing works out to US$4.15/month for Regular and US$5.75/month for Expert, both billed annually. Confirm academic eligibility, taxes, and required features before purchasing. Official Paperpile pricing

During the trial, test the whole process: collect ten real references, organize them, cite them in a document, and revise with a collaborator. Appearance alone is not enough to judge suitability.

6. EndNote: competitive when institutional access and team workflows are established

EndNote's value depends on the organizational context. If your group already uses it and the institution provides licensing, training, and support, you may not have to troubleshoot every citation issue alone.

New purchases, upgrades, and institutional access have different cost structures. Official documentation also distinguishes institutional licensing models. Ask which versions, upgrades, and post-departure rights your institution provides. EndNote licensing documentation

Institutional access can reduce personal expenditure, but duration and benefits depend on the contract. If you already have a long EndNote manuscript, include the time needed to convert its citations in migration costs.

For pricing and migration, see EndNote vs Zotero.

7. EndNote Fusion (formerly RefWorks): confirm your institution's current service

EndNote Fusion, formerly RefWorks, is mainly accessed through institutional subscriptions. This is the renamed RefWorks service, not EndNote Desktop. Ask your library about the current access point, licensing, and data compatibility with EndNote Desktop. Official renaming announcement

If your library has built teaching, database imports, and writing support around EndNote Fusion, it is worth testing. Access may include local courses, guides, and a dedicated help channel.

Before using it long term, confirm post-departure account policies, attachment storage, exports, and supported writing tools. Keep independent backups of important material.

8. Citavi: combining reference management and knowledge organization

Citavi combines bibliographic management with knowledge items, outlines, and writing organization. It suits researchers who want to connect excerpts to an argument while reading. Officially described AI features include paper insights, passage summaries, and paper search; licensing includes individual and institutional options. Citavi product information

Citavi offers a trial, with duration and features determined by version and license. Check system support and writing integration when choosing Desktop or Web.

If your challenge is turning extensive reading into organized chapters, this approach is worth trying. If you only need to insert citations, you may not initially need a more elaborate knowledge organization workflow.

Which tool suits which researcher?

Undergraduates and course papers: learn the complete citation workflow first

For ongoing reference management, start with Zotero or Mendeley's basic workflow. For a one-off bibliography, the free ZoteroBib is another option.

ZoteroBib suits bibliography creation. If you will repeatedly add and remove in-text citations and update numbering and bibliographies, choose a reference manager with writing integration.

Graduate research and long-term reviews: prioritize portability and team workflows

You usually need more than PDFs: collections, annotations, notes, and manuscript connections matter too. Test importing, exporting, backups, and restoration with real material before a large transfer.

Compare Zotero and Mendeley with EndNote, EndNote Fusion, or Citavi if your institution provides them. For systematic reviews, also maintain the search records, screening decisions, and extraction workflow your project requires. A reference manager alone does not provide a complete review audit trail.

LaTeX / Markdown: check citation keys, exports, and maintainable files

Compare JabRef, BibDesk, and Zotero with suitable extensions. Check stable citation keys, how changes propagate, and how collaborators resolve conflicts in shared .bib files.

For Better BibTeX and other Zotero extensions, see our Zotero plugin recommendations. Writing in LaTeX need not replace established reading and note-taking habits; define how the two parts update each other.

Medicine and strict formatting requirements: test the target journal style

Test author lists, journal abbreviations, DOIs, article numbers, and different source types in a real target style. Check collaborators' editing environments and include specialized institutional support in your assessment.

Final formatting depends on item data, the selected style, and journal requirements. Consider both output and team support when choosing software.

Moving from paid to free tools: identify what you need to keep

Free software can reduce future licensing expenditure, but migration is a one-time project. Records, attachments, collections, notes, and Word fields may follow different transfer paths.

If you have chosen Zotero, use these detailed guides:

• EndNote → Zotero: XML, attachment paths, and Word citations.
• Mendeley → Zotero: online import, annotations, and two generations of Word plugins.

For other tools, start the same way: export a small representative sample and verify that the destination opens the material and preserves what matters. For a nearly finished manuscript, keep the old tool for that manuscript and try the new tool on the next project.

Comparing AI: built-in assistants, plugins, and external connections

Reference management AI mainly addresses individual-paper reading, library questions, discovery, and organization. Establish the task first, then examine models, costs, and source verification.

Third-party resources: EndNote Research Assistant, Mendeley plans, JabRef AI, Paperpile's AI integration announcement, and Citavi.

If you choose Zotero and want an AI research workflow, try BibGenie, which we develop. Ask questions in the context of papers and notes, discover research through OpenAlex, and get help organizing your library. See the setup guide. BibGenie is installed in Zotero and works with your existing library.

Give candidates the same familiar paper and ask:

1. What are the study population, methods, and main limitations?
2. Where does the source support each important claim in the answer?
3. Does the tool acknowledge insufficient evidence or continue generating a complete-sounding answer?

Record actual costs, waiting time, application switching, and ease of checking sources. Compare the cost and outcome of completing the same task.

Trial checklist: five parts of a sustainable workflow

Choose two candidates and use the same material to test collection, reading, writing, collaboration, and export:

Frequently asked questions

Next step: complete a research workflow with real references

Choose the two tools closest to your needs, load the same sample, and work from collection through writing. Then test export and restoration.

If you favor Zotero, explore our Zotero plugin recommendations for reading, translation, notes, and AI. Establishing a reliable foundation before adding features makes the environment easier to maintain over time.