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JustisOne, our flagship legal research platform, gives you access to the most comprehensive collection of common law cases, alongside advanced legal technology. This unique combination of content and technology allows you to access more cases, and conduct efficient, exhaustive and thorough legal research.

The best way to experience JustisOne is with a personalised demonstration, or free trial, suitable for both individuals and groups. Contact us today to get started.


JustisOne doesn’t restrict your search to our content. Find cases from over 120 services, across 26 jurisdictions, to ensure your research is exhaustive.


For over 30 years Justis products and services have been trusted by leading international law firms, government departments, and top law schools from over 40 countries.


See at a glance where an authority has been considered, view the most cited passage of a case, and refine your search using JustisOne’s advanced tools.

JustisOne gives you access to the most comprehensive collection of common law cases, including a large selection of exclusive cases and an extensive collection of legislation.


Searchable cases


Jurisdictions covered


Legislative provisions

Combine resources

Many online case law providers restrict your searches to their content. JustisOne is different, and allows you to find cases across 120 other online services, even if the full text of the case is not on JustisOne.

Key passages

To ensure you can view the most cited passage of a judgment, JustisOne scans and cross-references the entire judgment transcript with over 500,000 other cases, updating the most cited passages in real time. The heat map over the text provides a visual guide for heavily cited passages. Simply click on the passage to see the paragraph number, case name, court and jurisdiction of the citing case.


Focus on the key parts of a case using JustisOne’s CiteLine feature. This extracts the relevant paragraphs from subsequent citing cases so you can easily see in detail how the case has been treated since the judgment was passed.

Trusted by international law firms, government departments, public companies, sole practitioners and law schools from over 40 countries.


Top Law Schools


Educational users


Legal professionals

Comparative law

JustisOne allows you to view judgements side-by-side from different jurisdictions. Our legally trained editors cross-reference citations, enabling you to link directly to persuasive and binding cases from multiple jurisdictions.

Find the case you need

Important cases are often reported in different series and publications. JustisOne links together the different citations and versions of a case, making it easier for you to find what you’re looking for, and without unnecessary duplication.

What makes JustisOne better?

Hear from Masoud Gerami, Managing Director, and the Justis team on what makes JustisOne different from other legal research platforms.

Search your way

JustisOne’s search bar can automatically identify citations, cases, court names and categories, while supporting Boolean search operators. You can also use the advanced search feature to further refine your searches, filter by reported series and core products.

Title[Stack v Dowden] Category[Trust] Court[court of appeal (civil division)]

Practice areas

Refine your searches with the world’s largest legal taxonomy containing over 1,500,000 terms and key phrases, and explore categories within 46 practice areas with increasing precision, using JustisOne’s category browser.

“I think this is a really great addition to JustisOne, and one that you may find helpful in your research. Foreign law research can be quite daunting, but with this new browse function walking you through legal topics, not just entering key words in and hoping for the best, you may find case law searching from the Commonwealth to be a fair bit easier.” Jennifer Walker, Head Librarian, Country of Carlton Law Association

Precedent map

See at a glance where an authority has been considered, using JustisOne’s Precedent Map. Case treatments are ordered chronologically, enabling you to quickly understand the current status of a case. It helps you find related cases at speed, in ways that are not possible through a direct search.

“One of my favourite features is the precedent map which is a fantastic tool which helps visualise the links between cases and always get an “ooh” when I demonstrate it during my sessions!”

Theresa Thurston, Academic Liaison Librarian, University of Kent

“My colleagues and I thought the training was very helpful indeed: it was well organized, thorough, practical and to-the-point.”

Karen S. Beck, Boston College, Massachusetts

“The Justis precedent map is an excellent tool for seeing at a glance where an authority has been considered.  Equivalent deliberate search would take up to a few minutes and is not really possible on some platforms.”

James M. Turner QC, Barrister, Quadrant Chambers

 “Being able quickly find a case on a platform and then to access other subscription services via the same platform and thus being able to get to the specific law report required for a court bundle has undoubtedly saved time on legal research.”

Diane Miller, Senior Information Officer, Gowling WLG

“Justis training staff delivers on a level which all our students find easy to understand.”

Jeremy Marshall, University of Liverpool


Our legally qualified editors manually specify case treatments, using fourteen different treatment types (such as considered, applied, overruled or distinguished), to provide you with a precise status of the law.

“We do not automate the editorial processes in the way other legal research platforms do, as we believe only manual mark-up delivers the high level of quality our customers require.” Rory Campbell, Head of Editorial Content


JustisOne is updated daily, with hundreds of new cases added each week.

Citations in context

There are over 100,000 citation relationships between different jurisdictions in JustisOne. Simply use the citations in context feature to highlight these relationships.

Download & Read

Access and download signed and stamped PDFs of judgments. You can choose to download the case transcript, the reported version if available, an overview and both cited and citing cases. You can also turn on Read Mode, to view only the judgment you are researching.


Access legislation as enacted, see the latest revisions, amended and amending items, and link directly to consolidated legislation from a relevant provider. 


If a case has been overruled or heard in a higher court, JustisOne will let you know with on-screen notifications.


Manage your organisation’s access, update your IP recognition settings, send informative user guides, request training and more with our admin portal.


JustisOne is mobile responsive to ensure you can access cases inside and outside of your office, on a device that suits you.

See for yourself

Book a personalised demonstration with our team to experience our legal research platform, and discuss our coverage.

hello@justis.com  |  +44 (0)20 7284 8080

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All data displayed has been collected between 2017-2018. Linking to external services may require additional subscriptions with third parties which are not included in Justis subscriptions. All subscriptions are for a minimum of 12 months. Accessing JustisOne will require devices to be connected to an organisation’s network if IP recognition is activated. All logos and names of publishers, commercial providers and services are provided to us by the respective organisations operating these services, and are shown here for an accurate representation of the service. The price advertised is for one Core product and one user subscription only. Prices are subject to change, are based on current exchange rates, and exclude all applicable taxes and VAT.