Westlaw vs CanLII

Westlaw9.4Visit CanLII9.1Visit

Higher score Westlaw #1 in Legal Research Software 9.4/10 Pricing on request · 7-day trial Free trial✓ 6 of 6 features Visit Westlaw

vs

CanLII #3 in Legal Research Software 9.1/10 Free plan Free plan✓ 6 of 6 features Visit CanLII

• Westlaw fits best

  Full-service U.S. legal research

• CanLII fits best

  Free Canadian legal research

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature	Westlaw 9.4/10 Visit ↗	CanLII 9.1/10 Visit ↗
At a glance
Editor score	9.4	9.1
Ranking	#1 in Legal Research Software	#3 in Legal Research Software
Best for	Full-service U.S. legal research	Free Canadian legal research
Pricing model	Paid	Free
Starting price	Pricing on request · 7-day trial	Free plan
Free plan	—	✓ (best)
Free trial	7 days	—
Deployment	Cloud	Cloud
Platforms	Web	Web
Support	Live chat, Phone, Docs · 24/7	Docs
Built for	Solo, Small business, Mid-market, Enterprise	Solo, Small business, Mid-market, Enterprise
Features Westlaw 6/6 · CanLII 6/6
Case law search	✓	✓
Statute & regulation search	✓	✓
Docket search	✓	✓
Legal commentary	✓	✓
Citation tools	✓	✓
Research alerts	✓	✓
Specs
Jurisdiction coverage	United States: state and federal jurisdictions	Canada: federal, provincial and territorial jurisdictions
Our review
Pros	Broad federal and state primary-law and secondary-source coverage KeyCite, alerts, dockets, and litigation analytics in one platform AI-powered Deep Research and document analysis capabilities	Free access to Canadian cases, statutes, regulations, and commentary Citation, section noteup, docket, full-text, and natural-language searches Lexbox alerts plus Lexbox and Clio integrations
Cons	Pricing requires contact with sales and varies by plan and configuration Access is delivered through the web platform Its scope is centered on U.S. federal and state jurisdictions	Jurisdictional coverage is focused on Canada Available through the web rather than native desktop or mobile apps Lexbox is a supplementary tool for saved research and alerts
Our verdict	Westlaw is Thomson Reuters’ online legal research platform for attorneys, law firms, government agencies, courts, and other legal professionals. It combines searchable state and federal case law with statutes, regulations, court rules,… Read the review →	CanLII is a free web-based legal research platform from the Canadian Legal Information Institute. It serves legal professionals, researchers, students, and the public with searchable Canadian court judgments, tribunal decisions, statutes,… Read the review →

Strengths and trade-offs

• Westlaw — where it wins

  • Broad federal and state primary-law and secondary-source coverage
  • KeyCite, alerts, dockets, and litigation analytics in one platform
  • AI-powered Deep Research and document analysis capabilities

  Where it doesn't

  • Pricing requires contact with sales and varies by plan and configuration
  • Access is delivered through the web platform
  • Its scope is centered on U.S. federal and state jurisdictions

• CanLII — where it wins

  • Free access to Canadian cases, statutes, regulations, and commentary
  • Citation, section noteup, docket, full-text, and natural-language searches
  • Lexbox alerts plus Lexbox and Clio integrations

  Where it doesn't

  • Jurisdictional coverage is focused on Canada
  • Available through the web rather than native desktop or mobile apps
  • Lexbox is a supplementary tool for saved research and alerts

• Westlaw9.4/10 · Pricing on request · 7-day trial

  A broad core research platform for legal professionals handling complex U.S. matters.

  Visit WestlawFull verdict →
• CanLII9.1/10 · Free plan

  A free web-based research library focused on Canadian legal materials.

  Visit CanLIIFull verdict →