Zotero review (2026): is the free plan enough?
Free, open-source reference manager from a nonprofit
Black Friday: is there a Zotero sale?
Zotero report card
Good · out of 4.0 · graded Nov 12, 2026
Best for collecting and citing sources for free
Zotero is a free, open-source reference manager from a nonprofit that collects, organizes and cites sources. Only 300 MB of file storage is free, and the pages we read describe no built-in AI chat or summaries.
Who Zotero is for
- 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
Who Zotero is not for
- 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
Why Zotero gets a 2.8
Five grades, each with its reason. The GPA is their average: an A is 4 points, an F is none.
- AValue for moneyThe 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.
- BFree plan and trialThe 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.
- CFeaturesCollects 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.
- CEase of useNo store rating on record. You install the app, a browser connector and a word processor plug-in, and learn collections and tags.
- BPlatforms and integrationsMac, Windows, Linux, iPhone and Android, with Word, LibreOffice and Google Docs.
What these grades rest on. Graded from this listing, whose facts were read from Zotero's own pages on 12 November 2026. Not based on using the product, and shorter than our full reviews. How we review and grade.
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<a href="https://toolgpa.com/tools/zotero#review"><img src="https://toolgpa.com/badge/zotero.svg" alt="Zotero: 2.8 GPA on ToolGPA" width="196" height="56"></a>Where Zotero stands among AI research tools
Zotero's GPA of 2.8 is higher than 41 of the 49 other AI research tools we grade, and level with 6.
It stands best on value for money (A, above 44 of 49) and worst on features (C, above 1).
Its paid plans start at $1.67 a month when paid by the year, against a middle price of $10 for the category: 0 of the 35 others that charge start lower.
On features, ease of use and platforms it scores 2.3 out of 4. 2 tools score higher and cost less.
Each grade against the category
Every bar is all 50 AI research tools we grade, cut by the letter each got. Zotero’s own letter is outlined.
- AValue for moneyAbove 44 of 49, level with 5
- BFree plan and trialAbove 36 of 49, level with 9
- CFeaturesAbove 1 of 49, level with 32
- CEase of useAbove 1 of 49, level with 27
- BPlatforms and integrationsAbove 16 of 49, level with 31
Price against what you get
Each dot is one of 40 AI research tools. Further left costs less, and higher up scores better on features, ease of use and platforms. Point at a dot to see which tool it is.
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
Keep Zotero, or make your own?
Keep it
To replace Zotero you would be making a library of papers and sources to search. That is not a weekend's work, with an AI app builder or without one.
It is one of the better ones too: its GPA of 2.8 is higher than 41 of the 49 other AI research tools we grade. It costs $20 a year. Zotero is open source, so there is a third way: take its code and run it yourself.
What you could make
- Web clipper and highlights: an app builder makes these well.
What you could not
- A library of papers and sources to search.
- Files kept in step across devices without losing one.
- Citation records for millions of papers.
- Apps for macOS, Windows, Linux, iOS and Android that stay in step with each other.
- Sharing with other people, which means accounts and invitations.
What this rests on. Zotero’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
What is Zotero?
Zotero is a reference manager that saves papers, web pages and books as you browse, organizes them into collections and tags, and builds citations and bibliographies. The software is free; paid plans only add file storage for syncing. It is run by a nonprofit and its source code is open.
Worth knowing
- 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
- 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.
Zotero pricing
As of Nov 12, 2026, Zotero has a free plan, and paid plans start at $20 per year for 2 GB of file storage.
- Starts at
- $20 per year for 2 GB of file storage
- Free plan
- The app is free; syncing files uses 300 MB of free storage. Group libraries draw on the group owner's storage.
- Free trial
- None listed
| Plan | Price | What you get |
|---|---|---|
| Free | $0 | The full app, with 300 MB of file storage for syncing PDFs, images and snapshots. |
| 2 GB | $20per year ($1.67 per month) | 2 GB of file storage. |
| 6 GB | $60per year ($5 per month) | 6 GB of file storage. |
| Unlimited | $120per year ($10 per month) | Unlimited file storage. |
Read from zotero.org on Nov 12, 2026. Prices change, so confirm with Zotero before you buy.
Works with
- Microsoft Word
- LibreOffice
- Google Docs
Zotero alternatives
- Zotero vs Mendeley
Free plan · from $26/mo
- Zotero vs Paperguide
Free plan · from $12/mo
- Zotero vs Anara
Free plan · from $8/mo
- Zotero vs Keenious
Free plan · from $10/mo
Common questions
Is Zotero open source?
Yes. Zotero is open source, according to its own site.
Sources for this page
The prices, plans, platforms and features above were read from these pages on Nov 12, 2026.