Back to All Tools
    Contract & Legal
    AI Powered

    AI Contract Comparison

    Compare two versions of a contract using AI. Identify changes, additions, removals, and potential risks between contract versions. Free contract diff tool for employment agreements, NDAs, leases, and vendor contracts.

    How Contract Comparison Works

    1

    Upload Original Contract

    Upload the first version of your contract—the baseline document you want to compare against.

    2

    Upload Revised Contract

    Upload the modified version. Supports PDF, images, or scanned documents with automatic OCR.

    3

    AI Analyzes Differences

    Our AI reads both documents and identifies every change—additions, deletions, and modifications.

    4

    Review & Download Report

    Get a detailed comparison report with risk assessment and recommendations you can share.

    Contract Comparison Features

    Instant Comparison

    See all differences between contract versions in seconds, not hours of manual review.

    Risk Assessment

    AI evaluates each change for potential legal or business risk, flagging concerns.

    Privacy Protected

    Text extraction happens in your browser. We never store your contracts or comparison data.

    Any Contract Format

    PDF, images, or scanned documents. Compare any two contracts regardless of format.

    Multi-Language Support

    Compare contracts in English, Spanish, French, German, Arabic, and 20+ languages.

    Track Negotiations

    Perfect for tracking changes across multiple rounds of contract negotiations.

    Who Uses Contract Comparison?

    From legal teams reviewing redlines to procurement comparing vendor terms, AI comparison saves hours of manual review.

    Legal Teams

    Quickly review redlined contracts from opposing counsel. Catch every change before signing.

    Procurement Teams

    Compare vendor contract revisions to ensure negotiated terms are reflected accurately.

    Real Estate Professionals

    Track changes between lease drafts. Ensure tenant or landlord modifications are acceptable.

    Business Development

    Compare partnership agreements across negotiation rounds to track evolving terms.

    What's in the Comparison Report

    Side-by-side analysis of both contracts
    Added clauses and terms highlighted
    Removed or deleted provisions identified
    Modified language with before/after comparison
    Risk assessment for each change
    Summary of key differences
    Recommendations for review
    Color-coded change categorization
    Downloadable comparison report
    Copy-to-clipboard for easy sharing

    Powered by Semantic AI Analysis

    Our contract comparison tool uses advanced large language models (LLMs) trained on millions of legal documents. The AI understands legal terminology, contract structures, and clause relationships. It performs semantic comparison—not just word-by-word diff—to identify meaningful changes in obligations, rights, and risks. For scanned documents, Tesseract OCR extracts text before AI analysis.

    GPT-4 / Claude AISemantic Diff AnalysisTesseract OCRPDF.js256-bit Encryption

    Frequently Asked Questions about Contract Comparison

    Related Tools

    Contract Analyzer

    Analyze a single contract in detail

    Contract & Legal
    AI

    Contract Clause Finder

    Find specific clauses in contracts

    Contract & Legal
    AI

    Legal Summarizer

    Summarize legal documents

    Contract & Legal
    AI

    Document Comparison

    Compare any two documents

    Policy & Compliance
    AI

    AI Document Summarizer

    Summarize any document

    Search, Chat & Summarization
    AI

    PDF Chat

    Ask questions about documents

    Search, Chat & Summarization
    AI

    Comparing Contract Versions Manually?

    Your redline rules and approval criteria can run automatically on every revision.

    Flag deviations from your standard terms instantly
    Your attorneys define what changes matter—the agent catches them
    Complete version history with audit trail

    No code required. Your legal team builds it like a spreadsheet.

    Powered by ByteBeam