TL;DR: Litmaps turns a handful of papers you already trust into a visual map of an entire research field, plotted by date and citations, so you can see what you have missed. The free plan includes basic search with up to 20 inputs, 2 Litmaps, and 100 articles per map — a small but real literature review at $0. Pro removes the ceilings for $10 a month on education pricing.
What does Litmaps actually do?
Literature reviews fail predictably: keyword search finds what you already know how to ask for, and the foundational paper with different terminology stays invisible. Litmaps attacks that from the citation graph. Seed a map with articles you trust — up to 20 inputs free — and Litmaps traces references and citations forward and backward to surface connected work, laid out by publication date and citation count so the field’s shape is visible at a glance.
From there you can keep discovering related papers, organize projects as maps, and share them. Litmaps says it is used by more than 900,000 researchers worldwide. It works best on a desktop-sized screen; Litmaps itself warns that building a map needs a bigger screen than a phone.
What is actually free on Litmaps?
According to Litmaps’ official pricing page, checked October 23, 2026, the free plan includes:
- Basic search with up to 20 inputs
- 2 Litmaps
- 100 articles per map
- The core discovery and visualization tools
Those numbers define the free plan’s shape: two focused topics, mapped properly. One well-seeded map with 100 articles covers the core literature of a narrow question — a class assignment, a related-work section, or checking whether an idea is already taken. It is not sized for a whole dissertation or a lab’s shared library.
What do the paid plans add?
Pro is $10 a month on Litmaps’ education pricing with annual billing, and it removes the ceilings: advanced search, unlimited inputs, unlimited articles, and unlimited Litmaps, plus weekly or configurable literature alerts so new papers in your field come to you. Commercial Pro pricing varies, and Litmaps notes country-based discounts. Team plans add unlimited team-wide collaboration on shared maps. In short, paying buys scale and monitoring — the discovery method itself is in the free plan.
Pros and cons
Pros
- Citation-graph discovery finds relevant papers keyword search misses
- The visual map (date against citations) makes a field’s landmarks obvious fast
- Free plan covers a complete small literature review, not just a demo
- Clear, published free limits — no mystery metering
Cons
- 2 maps and 100 articles per map is tight for multi-topic or long-running projects
- Advanced search and configurable alerts are paid features
- Desktop-first experience; map building on a phone is not practical
- Team collaboration requires a Team plan
Who is Litmaps best for?
Litmaps’ free plan is best for graduate students, undergraduates writing research papers, and professionals entering an unfamiliar field who need the landmark papers fast. If you maintain an ongoing watch on a fast-moving area, or share maps across a lab, Pro’s unlimited maps and alerts are the natural upgrade — at $10 a month on education pricing, it is one of the cheaper ones in research tooling.
FAQ
Is Litmaps really free?
Yes. The free plan costs $0 and includes basic search with up to 20 inputs, 2 Litmaps, and 100 articles per map, per Litmaps’ official pricing page.
How is Litmaps different from Google Scholar?
Scholar answers keyword searches. Litmaps starts from papers you choose and follows their citation connections, presenting the field as a visual map by date and citation count — which surfaces important papers that use different terminology than your search terms.
What does Litmaps Pro cost?
$10 a month on the education plan with annual billing, per the official pricing page, with country discounts noted. Pro adds advanced search, unlimited inputs, articles, and maps, and configurable literature alerts.
Can I collaborate on a map for free?
Team-wide collaboration is a Team plan feature. The free plan is built for individual work on up to 2 maps.
Research-based review — no hands-on testing claims. Free-tier details checked October 23, 2026 against Litmaps’ official pricing page and homepage. Plans can change; check Litmaps before you rely on a limit.