The Modern Standard for UK Legal Research
Full-text search across 1,683 UK appellate judgments, AI-generated summaries, and a professional research workspace — built for the way modern lawyers work.
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From discovery to citation export — every tool a modern lawyer needs, in a single refined interface.
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Search the full text of every judgment we hold in plain English, or jump straight to a neutral citation. Filters narrow results by court and date.
AI that understands legal context
Generate professional summaries, extract ratio decidendi, identify facts and issues, and ask targeted questions — grounded in the full judgment text.
Summary: The Supreme Court held that the Prime Minister's advice to prorogue Parliament was unlawful because it frustrated constitutional principles.
Ratio: Courts may review prerogative powers where they undermine the ability of Parliament to carry out its constitutional functions.
A reader worthy of the law
Clean typography, paragraph-level navigation, inline citations, and persistent AI sidebar — designed for hours of focused reading.
[1] This appeal concerns the lawfulness of the Prime Minister's decision to advise Her Majesty to prorogue Parliament...
[2] The issue is whether the courts can review the exercise of the prerogative power to prorogue...
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The depth of a traditional law library with the speed and intelligence of modern technology.
Advanced Legal Search
Natural language, citation lookup, and party search across the full text of every judgment we hold.
Citation Networks
Visualise authority relationships, treatment analysis, and overruled cases.
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Refine by court, date range, area of law, judge, and citation treatment.
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Learn moreBuilt for lawyers who expect more
Legacy platforms were designed decades ago. Judisyn pairs 1,683 full-text appellate judgments with AI, modern UX, and transparent pricing — and tells you plainly what it does not yet hold.
Read our story| Capability | Legacy | Judisyn |
|---|---|---|
| Natural language search | Limited | |
| AI summaries & Q&A | Add-on / None | |
| Modern responsive UI | ||
| Published coverage figures | ||
| OSCOLA citation export | ||
| Transparent pricing |
Courts in the database
1,683 full-text judgments from 3 courts, ingested from the National Archives Find Case Law service. We are adding further courts and tribunals as we extend our ingestion.
Landmark UK judgments
[2026] EWCA Civ 902
Rory Lyndon Nash, R v Brighton County Court
McCafferty and others v R
Francesco Costa v Saxon Woods Investments Limited and others
Geeks Limited v Joseph Henry Watts
Illiquidx Limited v Altana Wealth & Ors
Your AI research associate
Fifteen AI tools built for legal work — summaries, headnotes, ratio extraction, plain English explanations, and contextual Q&A on every case.
Summary: The Supreme Court held that the Prime Minister's advice to prorogue Parliament was unlawful.
Ratio: Courts may review the exercise of prerogative powers where constitutional principles are frustrated.
Similar: R (Miller) v Secretary of State for Exiting the European Union [2017] UKSC 5
Illustrative example. AI output is generated from the full text of the cited judgment and should always be checked against the original report.
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