The Free Westlaw Alternative: Legal Case Research Without the Subscription

If you have gone looking for a Westlaw alternative, you have run into the same contradiction twice. Court opinions are public records — written by public judges, in public courts, paid for by the public. Yet reading them at scale has meant a subscription that costs more per month than most people's car payment. Free legal case research should be the default. For most of the last forty years it has been the exception.

LawDiver exists to close that gap. Its CaseDiver tool puts more than 10 million U.S. federal and state court opinions in front of anyone who wants them — full text, official PDFs, no subscription, no credit card, no login. This post explains what that actually covers, what it honestly does not, and how to run real research on it.

Is there a free version of Westlaw or Lexis?

No. This is worth saying plainly, because "free Westlaw" and "free Lexis" are among the most-searched legal research phrases and the honest answer is not the one people are hoping for. Westlaw and Lexis are commercial subscription products. There is no free tier, no perpetual trial, and no legitimate public access point. Law school and bar association credentials come with license terms that restrict use, and sharing them is a contract violation, not a workaround.

But that is not really what people are asking. When someone searches for free Westlaw, they are not asking for Thomson Reuters' software. They are asking a simpler question: how do I find and read the cases that govern my situation without paying thousands of dollars a year?

That question has a good answer. The opinions themselves are not owned by anyone. What the paid services sell is the collection, the search, and the editorial layer on top — and the first two of those can now be given away.

What free legal case research actually has to do

Before comparing tools, it helps to name the jobs. Research is not one task; it is about six, and a Westlaw alternative is only useful if it handles them:

• Look up a known case by citation or by case name.
• Find unknown cases by describing the legal issue, not just guessing keywords.
• Read the full opinion — not a summary, not a snippet, the actual text the court wrote.
• Get the official document, the court's own PDF, for quoting and filing.
• See the citation network — what a case relied on, and who has cited it since.
• Verify citations before anything goes to a judge.

Most free tools do one or two of these and stop. That is why people go back to paying.

What LawDiver gives you for free

CaseDiver is free caselaw search, open to the public with no account. Not a trial, not a limited preview, not ten searches a month.

Coverage. More than 10 million opinions: the U.S. Supreme Court, the federal courts of appeals, the federal district courts, and the appellate and supreme courts of all fifty states. You can scope any search to a single state, a federal circuit, or the Supreme Court.

The full text, and the real PDF. Every result opens to the complete decision alongside its citation, court, and date, with a link to the official court PDF. When you quote a case in a brief, you are quoting the document the court issued.

New decisions, daily. Opinions are ingested every day from the Supreme Court, the federal courts of appeals, and the state supreme courts, and surface in the recent-opinions feed.

Search the way lawyers actually search

Four modes, because different research problems need different tools:

1. Citation lookup. Paste 410 U.S. 113 and go straight to the case.
2. Case name lookup. Type the name when that is all you remember.
3. Boolean with proximity connectors. AND, OR, NOT, exact phrases, /s for same sentence, /p for same paragraph, and w/n for within n words — the connector syntax you already know, documented at search connectors.
4. Plain-English semantic search. Describe the issue — "can a landlord withhold a deposit for normal wear and tear" — and get opinions that address it even when they use entirely different words. This is the mode keyword search has never handled well, and it is the one that most changes what a non-specialist can find.

Export a research set

Select the cases that matter and download the set as a single structured PDF. That file is also the right way to hand your research to an AI assistant, so its answers are grounded in real opinions rather than invented ones.

Where a free tool stops — honestly

A Westlaw alternative that oversells itself wastes your time, so here is the boundary.

CaseDiver covers primary law: the opinions themselves, their citations, and their text. It does not include the secondary materials that paid services bundle — treatises, practice guides, form banks, annotated statutes across every state, editorial headnotes, or proprietary classification systems like key numbering. Those are genuinely valuable, genuinely expensive to produce, and genuinely not free anywhere.

So the accurate description is this: CaseDiver is a free way to do caselaw research, not a feature-for-feature replacement for a Westlaw or Lexis subscription. For a large litigation shop running national practice with heavy reliance on editorial tools, a subscription may still earn its cost. For a solo practitioner, a small firm, a legal aid office, a clinic, a journalist, a student, or a self-represented litigant, the primary-law layer is most of the value — and it is now free.

If you want the details of where the corpus comes from and how it is processed, that is public too: see sources and methods.

Low-cost legal case research, when free is not the right fit

Some work needs programmatic access rather than a search box. LawDiver's paid products are separate, optional, and priced for teams that would otherwise be quoted enterprise rates:

• Caselaw API — search, retrieval, and cite checking as endpoints you can build on.
• MCP server — the same corpus exposed to AI assistants, so a model can search real caselaw instead of guessing at it.
• Bulk data — the corpus, the citation graph, and vector embeddings, licensed for research and product work.

Nothing above is required to search cases. The research tool stays free whether or not you ever touch a paid product.

Citation checking without a subscription

The most expensive research mistake is not a case you failed to find. It is a case you cited that does not say what you think it says — or does not exist at all. That risk has grown sharply now that briefs are drafted with AI assistance.

CiteChecker verifies the citations in a document you supply against the actual corpus. It is a lookup against real records, not a language model's opinion about whether a citation looks plausible — a distinction we wrote about in why your cite checker is probably just another LLM.

How to switch this week

1. Open CaseDiver and re-run your last three research questions. Compare what comes back against what you paid for.
2. Try one of them in plain English rather than boolean, and see whether semantic search surfaces anything your keywords missed.
3. Pull the official PDF for a case you have cited recently and confirm the quote against the court's own document.
4. Run a filed brief through CiteChecker.
5. Keep the subscription only for what actually failed steps 1 through 4.

Most people find that list is shorter than they expected.

Frequently asked questions

What is the best free Westlaw alternative?

For finding and reading U.S. caselaw, CaseDiver on LawDiver covers more than 10 million federal and state opinions with full text, official PDFs, boolean and semantic search, and no account requirement. It does not include treatises or editorial practice tools, so it is best described as free caselaw research rather than a complete Westlaw substitute.

Is free legal case research reliable enough to cite in a filing?

Yes, when you cite from the source document. Every opinion links to the official court PDF, so you can confirm the text a court actually issued before quoting it. As with any research tool, paid or free, verify each citation before filing — that is what CiteChecker is for.

Do I need an account to search cases?

No. Caselaw search on LawDiver requires no account, no credit card, and no login. An account is only needed for the paid API and MCP products.

Can a self-represented litigant use this?

Yes — that is a large part of why it exists. CaseDiver is built so that citizens, self-represented litigants, students, and journalists can read the same opinions lawyers read. It provides research tools and source documents; it does not give legal advice and is not a substitute for a lawyer.

What courts are covered?

The U.S. Supreme Court, the federal courts of appeals, the federal district courts, and the appellate and supreme courts of all fifty states.

Why is it free?

Because court opinions are public records, and the cost of making them searchable has fallen far enough that charging every reader for access is no longer necessary. LawDiver funds the free research tool through its API, MCP server, and bulk data licensing — the customers who need programmatic access, rather than the person trying to read the law that governs their own case.

Start searching at CaseDiver. No signup, no trial clock.