The Zotero Insider’s Guide
Everything we know about Zotero in one document: what it costs, its grades, getting a refund, getting help and what else to look at. Read it here, or keep a copy.
Zotero
The Insider’s Guide
Free, open-source reference manager from a nonprofit
Every plan, grade, refund rule and rival among AI research tools, read from Zotero’s own pages.
Made by Corporation for Digital Scholarship · checked Nov 12, 2026 · toolgpa.com
Contents
- 01WelcomeWhat it is, who it suits, its grades and the ten things to know first
- 02What it costsEvery plan, the free plan, ways to pay less and how prices have moved
- 03What it doesIts main features, where it runs, what it works with and who makes it
- 04Where it standsIts grades against its category, and whether to keep it or make your own
- 05The alternativesThe tools it is most often weighed against, side by side
- 06Quick answersThe questions people ask about it, each answered in a line or two
- 07About ToolGPAWho made this guide, what else is on the site, and how to cite it
ToolGPA put this guide together from Zotero’s own pages, its app-store listings and our grades. Every fact in it is on Zotero’s page too, where it is kept up to date. Checked Nov 12, 2026.
Part 01 · Overview
Welcome
What it is, who it suits, its grades and the ten things to know first
2.8
GPA, above 41 of the 49 other AI research tools we grade
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.
To get you started, here are 9 things to know about Zotero, taken from its own pages and our grades.
You install the app, a browser connector and a word processor plug-in, and learn collections and tags.
- 1
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.
- 2
Paid plans start at $1.67 a month when paid by the year
As its pricing page puts it: $20 per year for 2 GB of file storage.
- 3
There is a free plan
The app is free; syncing files uses 300 MB of free storage. Group libraries draw on the group owner's storage.
- 4
It runs on 5 platforms
macOS, Windows, Linux, iOS and Android.
- 5
Collect from the web
Zotero senses articles, books and news stories on pages you browse and saves the full reference with one click.
- 6
Collections, tags and saved searches
Sort items into collections, tag them with keywords, or create saved searches that fill automatically as you add material.
- 7
Citations in your editor
Inserts references and bibliographies in Word, LibreOffice and Google Docs, with more than 9,000 citation styles.
- 8
A 2.8 GPA, above 41 of 49
That is against the other AI research tools we grade, on value, the free plan, features, ease of use and platforms.
- 9
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.
Zotero at a glance
- Pricing
- Free plan, from $20 per year for 2 GB of file storage
- Free plan
- Yes
- Free trial
- None stated
- Runs on
- macOS, Windows, Linux, iOS, Android
- Made by
- Corporation for Digital Scholarship
- Category
- AI Research Tools
- Our grade
- 2.8 GPA, good
The report card
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.
| Subject | Grade | Comment |
|---|---|---|
| Value for money | A | The 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. |
| Free plan and trial | B | The 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. |
| Features | C | Collects 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. |
| Ease of use | C | No store rating on record. You install the app, a browser connector and a word processor plug-in, and learn collections and tags. |
| Platforms and integrations | B | Mac, Windows, Linux, iPhone and Android, with Word, LibreOffice and Google Docs. |
An A is worth 4 points, a B 3, a C 2, a D 1 and an F nothing. The GPA is the average of the five.
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 it 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
Good to know
Good for
- Students and researchers who want a free reference manager
- People who work across Windows, Mac, Linux and mobile
- Groups building a shared bibliography at no cost
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.
Part 02 · Pricing
What it costs
Every plan, the free plan, ways to pay less and how prices have moved
$1.67
A month to start, paid by the year. There is a free plan too
Zotero has a free plan. Paid plans start at $20 per year for 2 GB of file storage.
The app is free and open source, with every feature in the free version.
Free
$0
The full app, with 300 MB of file storage for syncing PDFs, images and snapshots.
2 GB
$20
per year ($1.67 per month)
2 GB of file storage.
6 GB
$60
per year ($5 per month)
6 GB of file storage.
Unlimited
$120
per year ($10 per month)
Unlimited file storage.
The free plan
The app is free; syncing files uses 300 MB of free storage. Group libraries draw on the group owner's storage.
Read from zotero.org on Nov 12, 2026.
Part 03 · Features
What it does
Its main features, where it runs, what it works with and who makes it
5
Places it runs: macOS, Windows, Linux, iOS and Android
Free, open-source reference manager from a nonprofit. Here is what it does, as its own site describes it, and what it covers: open source, web clipper, research, citations, highlights, file sync.
Collects from the web, collections, tags, saved searches, citations in your editor, sync and shared libraries.
- 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.
Where it runs
- macOS
- Windows
- Linux
- iOS
- Android
What it works with
- Microsoft Word
- LibreOffice
- Google Docs
Zotero is made by Corporation for Digital Scholarship.
Part 04 · Standing
Where it stands
Its grades against its category, and whether to keep it or make your own
41/49
Other AI research tools it is graded above
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
- BFree plan and trialAbove 36 of 49
- CFeaturesAbove 1 of 49
- CEase of useAbove 1 of 49
- BPlatforms and integrationsAbove 16 of 49
Price against what you get
Each dot is one of 40 AI research tools. Further left costs less; higher up scores better on features, ease of use and platforms. Zotero is the marked dot.
What paid plans start at, a month (each step along is roughly double) →
Keep it, or make your own?
Whether this is something you could build for yourself with an AI app builder, and what you would give up.
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.
Part 05 · Alternatives
The alternatives
The tools it is most often weighed against, side by side
Mendeley, Paperguide, Anara and Keenious
The 4 tools Zotero is most often weighed against, with where each one differs from it.
- 2.2GPA
Mendeley
Free plan · from $26/mo
Reference manager from Elsevier, with paid AI add-ons.
- Only Zotero lists macOS, Windows, Linux, iOS and Android apps.
- Only Mendeley lists a web app.
- Zotero is open source, according to its own site.
- 2.6GPA
Paperguide
Free plan · from $12/mo
AI research platform for literature and systematic reviews.
- Only Zotero lists macOS, Windows, Linux, iOS and Android apps.
- Only Paperguide lists a web app.
- Only Paperguide lists a browser extension.
- 2.4GPA
Anara
Free plan · from $8/mo
AI research assistant that cites the exact source passage.
- Only Zotero lists Windows, Linux and Android apps.
- Only Anara lists a web app.
- Only Anara lists a browser extension.
- 2.6GPA
Keenious
Free plan · from $10/mo
Academic search that recommends papers from your own text.
- Only Zotero lists macOS, Windows, Linux, iOS and Android apps.
- Only Keenious lists a web app.
- Zotero is open source, according to its own site.
Part 06 · Questions
Quick answers
The questions people ask about it, each answered in a line or two
10
Questions, each answered in a line or two
The short version of everything above, for when you only need the answer. Each one is told in full in its part of the guide.
Is Zotero free?
Zotero has a free plan. The app is free; syncing files uses 300 MB of free storage.
How much does Zotero cost?
Zotero lists 4 plans. Free: $0.
What platforms does Zotero work on?
Zotero is available on macOS, Windows, Linux, iOS and Android.
Is Zotero open source?
Yes. Zotero is open source, according to its own site.
What does Zotero integrate with?
Zotero's listing names Microsoft Word, LibreOffice and Google Docs. A listing names up to eight integrations, so it may connect to more.
Who makes Zotero?
Zotero is made by Corporation for Digital Scholarship.
What are the alternatives to Zotero?
The closest alternatives to Zotero in our directory are Mendeley, Paperguide, Anara and Keenious.
How does Zotero compare with other 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.
Is Zotero good value for money?
ToolGPA grades Zotero A for value for money. 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.
Could I make my own version of Zotero?
To replace Zotero you would be making a library of papers and sources to search.
Where this guide comes from
The prices, plans, platforms and features were read from Zotero’s own pages on Nov 12, 2026, and the grades were given on Nov 12, 2026. 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.
Every tool we list gets five grades, A to F, each with its reason, and a GPA that averages them. How each is decided is at toolgpa.com/grades. This guide is ToolGPA’s own work; it is not made, paid for or approved by Corporation for Digital Scholarship. Prices change, so check zotero.org before you buy.
Part 07 · About
About ToolGPA
Who made this guide, what else is on the site, and how to cite it
5,038
Tools graded, in 95 categories
ToolGPA grades software the way a school report grades a pupil: five subjects, a letter for each with the reason written beside it, and a GPA that averages them. Prices, plans and platforms are read from each maker’s own pages and dated, so you always know how fresh a figure is.
Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Every tool on the site has a guide like this one, free to download and pass on. It all lives at toolgpa.com.
5,038
tools graded
95
categories
739
price changes on record
579
apps priced in 12 countries
What else is on toolgpa.com
- Zotero, kept up to dateEverything in this guide, with prices and grades as they are todaytoolgpa.com/tools/zotero
- How grades are givenThe rules behind every letter and every GPAtoolgpa.com/grades
- Value chartsWhat each tool costs against what it scores, for every categorytoolgpa.com/charts
- CompareAny two tools side by side, plan by plantoolgpa.com/compare
- Price changesEvery price rise and cut on record, each with its sourcetoolgpa.com/price-changes
- Prices by countryWhat apps cost on the App Store in 12 countriestoolgpa.com/prices-by-country
- Pay lessEvery public discount: yearly billing, students, nonprofitstoolgpa.com/save
- Keep or makeWhich tools are worth paying for, and which you could build yourselftoolgpa.com/keep-or-make
Scan for the live page
Prices and grades as they are today
Quoting this guide?
Please name ToolGPA and link to the live page, so readers can check the figures for themselves:
ToolGPA, "Zotero: The Insider's Guide", checked Nov 12, 2026. https://toolgpa.com/tools/zotero
Know someone choosing between AI research tools?
Send them this guide: toolgpa.com/tools/zotero/guide
ToolGPA elsewhere: youtube.com/@toolgpa
See our other guides
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- AI Research Tools Insider's GuideEvery one of the 50 AI research tools we grade, compared
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- Semantic Scholar Insider's GuideFree AI-powered search engine for scientific literature3.2 GPA
- ChatPDF Insider's GuideAsk questions about PDFs and get answers with citations2.8 GPA
Choosing software? Every tool graded, every price dated.
Compare tools at toolgpa.com ›Everything in this guide is ToolGPA’s own summary of what Zotero’s pages, its app-store listings and public reviews said on the dates shown. Grades are our judgement under the rules at toolgpa.com/grades. Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Zotero is a trademark of its owner, and this guide is not made, paid for or approved by Corporation for Digital Scholarship. Prices and plans change: check zotero.org before you buy.