Mendeley vs Lean Library Workspace (2026): which should you pick?
As of Nov 13, 2026, Mendeley and Lean Library Workspace share a 2.2 GPA, both have a free plan, and Lean Library Workspace starts cheaper, at $6.99 a month against $26 a month.
Checked Nov 12, 2026 and Nov 13, 2026 · graded Nov 12, 2026 and Nov 13, 2026 by ToolGPA
Mendeley grades higher on the free plan and platforms. Lean Library Workspace grades higher on value for money. They get the same grade on features and ease of use.
Price, platforms and features side by side. The table says where each price was read and when.
Mendeley
Reference manager from Elsevier, with paid AI add-ons
Lean Library Workspace
Reference manager and citation add-ins, formerly Sciwheel
Which one is for you
Pick Mendeley if
- Fits if you want a no-cost reference library and don't need AI
- Works for researchers already using Scopus or ScienceDirect
Look elsewhere if
- Pricey if you want its AI features, at $26 a month billed yearly
- Not for you if you're buying for a company, since Elsevier says the plans aren't for corporate use
- Watch out: Mendeley Premium is now part of LeapSpace, per the pricing page
- Watch out: AI in the free LeapSpace tier runs unlimited for 14 days, then limited and not inside Mendeley
Pick Lean Library Workspace if
- Fits if you want a cheap reference manager that cites inside Word and Docs
- Works for students whose university already gives Premium access
Look elsewhere if
- Tight if you stay free: up to 3 projects
- Watch out: the pricing page is unfinished, with bullets reading Feature 2, 3 and 4
- Watch out: $6.99 is shown per month with no annual or monthly basis stated
- Skip it if you want AI features, as the site shows none
- Skip it if you want phone apps, as none are listed
How we grade them
| 2.2GPAMendeleyFair | 2.2GPALean Library WorkspaceFair | |
|---|---|---|
| Value for money | DThe AI features are on LeapSpace Individual at $26 a month billed yearly, more than twice the research middle of $10 and inside the dearest tenth, which starts at $20. The free LeapSpace tier excludes the AI inside Mendeley. | BPremium is $6.99 a month, under the $7.92 that starts the cheaper quarter of research tools, though the billing basis is not stated. |
| Free plan and trial | BThe reference manager is free with 2 GB of storage, and a person can live on it. The LeapSpace free tier has unlimited AI for only 14 days, then limits. | CA free account with up to 3 projects. A cap you will meet fast. |
| Features | CA reference library, Ask My Library, a Reading Assistant, Compare Experiments and a Word add-in. The AI bits sit behind the paid plan, and desktop support couldn't be confirmed from the pages read. | CBrowser extension, projects and tags, annotations, shared projects and Word and Docs add-ins. No AI features are shown. |
| Ease of use | CNo store rating on record. A reference manager means importing a library, setting up folders and a plug-in. | CNo store rating on record. There are projects, tags and add-ins to set up. |
| Platforms and integrations | BListed as web only, because desktop apps couldn't be confirmed. It has a Word add-in and connects to Scopus and ScienceDirect. | CWeb and a browser extension, with Word and Google Docs add-ins only. |
| Best for | managing a reference library for free | a reference manager with Word and Docs add-ins |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: Mendeley and Lean Library Workspace. How we grade
Price against what you get
Mendeley starts at $26 a month and scores 2.3 out of 4 on features, ease of use and platforms. Lean Library Workspace starts at $6.99 a month and scores 2.0.
Mendeley scores higher, and starts $19.01 a month higher: the question is whether the extra is worth that to you. Of the other AI research tools on the chart, 26 score higher than Mendeley for less, and 12 score higher than Lean Library Workspace for less.
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
Where they differ
- Mendeley also covers chat assistant.
- Lean Library Workspace also covers web clipper.
At a glance
| Mendeley | Lean Library Workspace | |
|---|---|---|
| Pricing | Free plan | Free plan |
| Starts at | $26 per month, billed annually ($32 billed monthly) | $6.99 per month |
| Free plan | Mendeley's reference manager is free, with 2 GB of storage. LeapSpace has a free tier whose AI features are unlimited for 14 days, then limited. | Starter plan: free account with up to 3 projects. |
| Free trial | None listed | None listed |
| Web | ||
| Browser extension | ||
| Made by | Elsevier | Lean Library |
| Price read from | researcher.elsevier.com | sciwheel.com |
| Checked | Nov 12, 2026 | Nov 13, 2026 |
Worth knowing
Mendeley
- AI features inside Mendeley need a paid LeapSpace plan; the free LeapSpace tier excludes them.
- The pricing page says Mendeley Premium is now part of LeapSpace.
- Platform support for desktop apps could not be confirmed from the pages read, so only web is listed.
- Elsevier says the plans are not for corporate use.
Lean Library Workspace
- The pricing page is unfinished: plan bullets read Feature 2, 3 and 4, and its link is commented out of the site menu.
- The $6.99 figure is shown as per month with no annual or monthly basis stated.
- Free accounts are limited to 3 projects; some universities provide Premium access.
- The site shows no AI features.
Key features
Mendeley
- Reference library
- Add PDFs to a library, organize them with collections and tags, then read, highlight and annotate in one place.
- Ask My Library
- On the paid plan, search, summarize and compare PDFs across your saved library; this works in Mendeley Reference Manager.
- Reading Assistant
- Summarize or question a saved document, with suggested follow-up questions.
- Compare Experiments
- Pull goals, methods and results from several studies into a table that exports as CSV.
- LeapSpace search
- Searches Scopus-indexed literature and builds Deep Research reports, with Trust Cards that show supporting sources.
- Word add-in
- The Individual plan lists a Microsoft Word add-in for inserting citations.
Lean Library Workspace
- Browser extension
- The Lean Library extension, offered for Chrome, Firefox, Safari, Opera and Edge, saves references and links to free or institutional access.
- Projects and tags
- References are organized in flexible projects and tags, with unlimited cloud storage synced across devices.
- Annotations
- Highlight and add notes directly on web texts, PDFs and other resources, kept with the saved reference.
- Shared projects
- Collaborators work in shared projects and see highlights, notes and references in one place.
- Word and Google Docs add-ins
- Insert formatted references and bibliographies in over 7,000 styles while writing.
Plans
Mendeley
LeapSpace Free$0
Search and other AI features free for 14 days, then with limits; does not include AI features in Mendeley.
LeapSpace Individual$26
per month, billed annually ($32 billed monthly)
Adds AI features in Mendeley and the Word add-in. Bills $320 yearly, $30 a month for 3-month terms.
LeapSpace OrganizationCustom
Institution-wide access, admin console and SSO; price on request.
Lean Library Workspace
Starter$0
Free account limited to 3 projects.
Premium$6.99
per month (billing basis not stated)
Unlimited projects, references and storage.
Institution / Lab GroupCustom
Everything in Premium; enquire for pricing.
Ways to pay less
Mendeley
- Annual discount
Save $64 with yearly billing
The LeapSpace page shows $320 billed every 12 months against $32 a month billed monthly, labeled as saving $64.
Lean Library Workspace
No public discounts listed.
Common questions
Which is cheaper, Mendeley or Lean Library Workspace?
As of Nov 13, 2026, Lean Library Workspace is cheaper to start with: $6.99 a month, against $26 a month for Mendeley. Mendeley starts at $26 per month, billed annually ($32 billed monthly), and Lean Library Workspace starts at $6.99 per month.
Which has a free plan, Mendeley or Lean Library Workspace?
As of Nov 13, 2026, both Mendeley and Lean Library Workspace have a free plan.
Which platforms do Mendeley and Lean Library Workspace run on?
As of Nov 13, 2026, only Lean Library Workspace lists a browser extension. Both list a web app. A platform missing from a listing is one its maker's pages did not mention.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.