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Build on and interact with Canadian court decisions, tribunal decisions, federal statutes and regulations — free and open to everyone.
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}A2AJ conducts research and advocacy to make Canada's justice system fairer and more accessible as technology reshapes the legal landscape. We're co-hosted by Osgoode Hall Law School and the Lincoln Alexander School of Law, with support from the Law Foundation of Ontario.
The full text of Canadian court and tribunal decisions, legislation and regulations — searchable, downloadable, and free for anyone to use.
Benchmarks to evaluate AI models on tasks involving Canadian law, focusing on topics that impact marginalized and low income people.
Grants for Canadian law and graduate students to pursue law and tech projects that advance access to justice using A2AJ datasets.
We share the results of our projects in open-access academic venues to help build enthusiasm for partnerships between legal scholars and technologists.
Prototype tools built with partners including privacy-preserving redaction, citation verification, and tenant-advocacy analytics.
Open legal data changes who gets to ask questions about the justice system — and who gets answers.
Until now, large-scale empirical study of Canadian courts required expensive commercial databases or months of manual data collection. A2AJ datasets let researchers analyze tens of thousands of decisions — tracking how legal standards evolve, how outcomes vary across decision-makers, or how long cases take to resolve — using the same quantitative methods available in other social sciences.
Public institutions make decisions that affect people's lives — refugee claims, disability benefits, human rights complaints. Open data makes it possible to measure whether those systems are working fairly. Journalists, advocates, and oversight bodies can identify patterns that would be invisible in one-off case reviews.
Most legal AI is trained on American data and optimized for American law. A2AJ provides the bilingual, Canadian-specific training data needed to build AI tools that actually understand the Canadian legal system — from statutory interpretation to immigration law to constitutional rights.
Large law firms and well-funded institutions have always had access to comprehensive legal databases. Self-represented litigants, legal clinics, and small practices have not. Open data and the tools built on it — including AI assistants that can answer plain-language legal questions — begin to close that gap.