Zotero software saves the sources you find online, keeps them in one organized library, and builds your citations and bibliography in the style you need. This guide explains what Zotero is, how its parts work together, how to start using it, and what it costs. It reflects Zotero's own documentation and release notes as of October 2026.
Quick answer: Zotero is a free, easy-to-use tool for collecting, organizing, annotating, citing and sharing research, and it runs on Mac, Windows, Linux, iOS and Android. The software is free. You only pay if you want more online storage for attached files.
 |
| Discover how Zotero helps students and researchers collect, organize, and cite academic references. |
What Is Zotero Software?
Zotero is a reference manager, also called a citation manager. At its most basic level it stores, manages and cites bibliographic references such as books and articles, and each reference is called an "item." Beyond references, you can attach PDFs, add notes and tags, and annotate documents.
A few basics:
- Pronunciation: zoh-TAIR-oh.
- Who runs it: Zotero is a project of Digital Scholar, a nonprofit organization that builds software and services for researchers and cultural heritage institutions.
- Cost model: It is open-source and free, developed by a nonprofit.
- Need a quick bibliography only? Zotero's website also points to ZoteroBib, a separate tool for quickly creating a bibliography.
How Does Zotero Work?
Zotero is not one program. It is a small set of connected parts, and understanding them makes everything else easier.
| Part | What it does | Required? |
|---|---|---|
| Zotero desktop app | Holds your library and organizes it | Yes |
| Zotero Connector | Saves sources from your browser | Practically yes |
| Word processor plugins | Inserts citations and bibliographies | Only if you write in Word, LibreOffice or Google Docs |
| Sync and mobile apps | Keeps your library on several devices | Optional |
1. The desktop app: your library
The desktop app is where your sources live. Zotero works as a browser extension used together with a stand-alone program on your computer.
2. The Zotero Connector: saving from the web
To use Zotero properly, you install the Zotero Connector for Chrome, Firefox, Edge or Safari in addition to the desktop app. The Connector senses research as you browse, for example an article from JSTOR or a preprint from arXiv.
If the Connector does not recognize a page, you still have a fallback. It saves the page as a Web Page item with a snapshot, but you may need to fill in extra details by hand.
3. Word processor plugins: citing while you write
The plugins for Microsoft Word, LibreOffice and Google Docs create dynamic bibliographies. When you insert a new in-text citation, the bibliography updates automatically. The Word and LibreOffice plugins come bundled with Zotero and install automatically when you first start it. Google Docs support comes from the Connector instead, and it requires the Zotero program to be running.
4. Sync and mobile: optional extras
Zotero can optionally synchronize your data across devices and lets you access your research from any web browser if you sync. You do not have to create an account just to start using it.
How to Get Started With Zotero
- Install Zotero. Download it from the official download page. If you need help with the process, see our guide on how to install software on a laptop.
- Add the Connector for your browser (Chrome, Firefox, Edge or Safari).
- Save your first source. Open an article page and click the Zotero button in your browser toolbar. Zotero's documentation recommends saving from a source's publication page when possible.
- Organize it. Drag the item into a collection, add tags, or attach a note.
- Cite it. Open Word, LibreOffice or Google Docs, click the Zotero citation button, search for your source, and insert it. Then add a bibliography.
- Sync, if you want to. Create a free Zotero account to use your library on several devices.
Key Features
Collect
Besides browser saving, you can attach files with the paperclip button or by drag and drop. Files can also download automatically when you import items with the Connector. Another route is the "Cite" or "Export" menu in many library databases, where you choose RIS and open the downloaded file.
Organize
Collections let you arrange items into groups and subgroups, and the same item can belong to several collections. Tags are keywords you assign to citations, most often to mark the topics they cover, and they are searchable and browsable. Collections work like project folders. Tags work like labels that cut across projects.
Read and annotate
Zotero has a built-in reader that supports highlighting, underlining and annotations. Since Zotero 8, annotations appear under their parent attachments in the items list, so you can search for them directly.
Cite
Zotero ships with several popular citation styles, and thousands more are available in the Zotero Style Repository. If a journal or professor requires a different style, you can switch the style without retyping anything.
Collaborate
You can share a Zotero library with as many people as you like at no cost. Since Zotero 9, group libraries can show "Added By" and "Modified By" columns, so you can see who created or last edited each item.
What's New in Zotero 8, 9 and 10
Zotero now ships feature releases often. The team plans new versions roughly every 6 to 10 weeks. Recent highlights:
- Zotero 8 (January 2026): A unified citation dialog with List and Library modes, annotations in the items list, and reader themes.
- Zotero 9 (April 2026): Read Aloud for PDFs, EPUBs and web snapshots, a "Recently Read" collection, and browser-based login.
- Zotero 10 (August 2026): In-window advanced search with nested conditions, multi-collection selection, undo support, batch editing, a Reading Mode for PDFs, and smarter Read Aloud.
One practical note: Zotero 8 and later require macOS 10.15 or later or Windows 10 or later.
Is Zotero Free?
Yes, the software is free. What costs money is online storage for attached files such as PDFs. Syncing your library data is free and has no storage limit, while file syncing includes 300 MB of free space.
Zotero's individual storage plans, in US dollars:
| Storage | Price (USD) |
|---|---|
| 300 MB | Free |
| 2 GB | $20/year |
| 6 GB | $60/year |
| Unlimited | $120/year |
Zotero also offers storage plans for labs and institutions, and group libraries use the group owner's storage.
Example (illustrative numbers): if your PDFs average about 2 MB, the free 300 MB holds roughly 150 of them (300 ÷ 2). A researcher with thousands of papers would likely need a paid plan, or would keep files only on their own computer.
Common Mistakes and Limitations
- Editing citations by hand in your document. Zotero advises against manual edits to citations in almost all cases. Customize them through the citation dialog so Zotero can keep updating them.
- Letting snapshots eat your storage. Saving HTML snapshots of web pages can use a lot of space, and you can turn that option off.
- Turning off file sync without a backup. If you stop syncing files, your PDFs exist only on your computer's hard drive.
- Co-editing citations in Google Docs. Zotero recommends that several people do not add or edit citations at the same time. Google Docs also stores citations differently than Word and LibreOffice, so they can unlink more easily.
- Trusting every saved record. Auto-detected metadata can be incomplete. Skim each new item for the title, authors and date before you cite it.
Who Is Zotero For?
Zotero suits anyone who keeps a growing pile of sources and needs consistent citations. That includes students writing papers, researchers managing literature, and writers who cite regularly. It is a research library and citation tool, not a writing app. You still write in Word, LibreOffice or Google Docs.
Frequently Asked Questions
How do I pronounce Zotero?
It is pronounced zoh-TAIR-oh.
What happens when I reach the 300 MB limit?
Only file syncing is limited. Library data syncing stays free and unlimited. You can upgrade storage, or keep your PDFs on your own computer and back them up yourself.
Can I make a bibliography without installing Zotero?
Yes, ZoteroBib is a separate tool on Zotero's site for creating a quick bibliography.
Does Zotero work on my phone?
Zotero is available for iOS and Android. Some desktop features, such as Read Aloud, may arrive on mobile later, so check the current app.
Conclusion
Zotero is a free, open-source reference manager built from a desktop app, a browser Connector, word processor plugins and optional sync. Save sources as you browse, organize them with collections and tags, and let the plugin build your citations. Start with the free tier and upgrade only if your attached files outgrow 300 MB. To try it, download Zotero from zotero.org/download and follow the official documentation. For more tutorials, browse our software guides and how-tos.
Sources used: Zotero homepage, Zotero storage page, Zotero blog (news), Zotero 8 announcement, Using Zotero with Google Docs, Word Processor Plugins.
Post a Comment