Cite Commons Citation Checker

An AI companion for checking citations and reinforcing citation skills — because legal citation belongs to all of us, not one book.

Why Case Law Matters ↗

How to Use

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Free courtesy of Prof. Joshua Aaron Jones. Shared API key is limited — if you use this regularly.

Paste your citations

One per line, or a full paragraph — Cite Commons detects each citation automatically.

Choose guides

Select All 5 or toggle individual guides — ALWD, Bluebook, Indigo, LII, or UCG. You can switch guides after running to filter results without re-checking.

Select depth

Detailed returns rule citations, explanations, and corrected forms. Quick gives a fast pass/fail with the primary rule reference only.

Check Citations

Each citation gets a status — ✓ Correct, ⚠ Review, or ✕ Error — for each selected guide.

Review results

Expand a citation card and switch guide tabs to compare. Corrected forms appear in a highlighted box — copy directly into your document.

Existence verification

Each case citation is checked against CourtListener. A live database link confirms the case exists — AI alone is never used as proof.

    β BETA  AI-assisted — always verify against primary sources. Always be the human in the loop.
    
  

Enter citations — one per line or paste a passage 0 chars

Check:

Depth:

Consulting the guides…

Did You Know?

Analysis Results

Summary

Sources & Settings

▾ details

Citation Guides

Bluebook 21st	Training knowledge
Indigo Book 2d	Loading…
ALWD 7th	Training knowledge
LII Basic	Grounded (law.cornell.edu)
UCG 3rd	Training knowledge

CourtListener Token

Add a free CourtListener API token to enable real-time case existence verification against the Free Law Project database.

Token:

Without token: AI assessment only. With token: live CourtListener lookup.

AI Provider

Anthropic ChatGPT Gemini

API Key:

console.anthropic.com · platform.openai.com · aistudio.google.com

Build a Citation — describe what you're citing

Citation type

Generate for

Generates properly formatted citations from the information you provide

Generated Citations

Upload a document to extract and verify its citations

⬆

Drop a file here or click to browse

PDF · Word (.docx) · Plain text (.txt)

🔒

Privacy notice Your file is read entirely in your browser and is never uploaded or stored anywhere. The text extracted from it is sent to Anthropic's API to identify citations — the same as typing or pasting text into the checker. Do not upload documents containing confidential, privileged, or sensitive information (draft briefs, client memos, sealed materials). Anthropic's API privacy policy applies to text sent via this tool. Nothing is retained after you close or refresh the page.

Practice tip: You can also extract citations from a document yourself — copy them into a plain text file, one per line — and paste or import that list directly into the Citation Checker tab. This gives you full control over which citations to check and keeps your document contents off the network entirely.

Extracts all citations from your document, then checks them against the selected guides

Reading document…

Try an example:

SCOTUS case Universal cite Federal statute Book Law review Fed. rule Constitution Admin. reg.