20 Best AI Tools for Contract Review in 2025

Contract review has never been easier. With AI-powered tools, legal professionals can process agreements in minutes that once took hours, while maintaining accuracy and reducing risk.

⚙️ What they do: These tools automatically extract key clauses, identify risks, flag inconsistencies, and provide detailed analysis of contract terms across entire document portfolios.

📊 Why use them: Manual contract review is time-consuming, error-prone, and inconsistent—AI tools process contracts 90% faster while maintaining higher accuracy and enabling standardized review processes.

1. Kira Systems – Document Analysis Platform

What is it? Kira Systems is an AI-powered contract review platform trained by lawyers to identify, extract, and analyze key clauses within legal documents. It reduces review time by up to 90% while improving accuracy and consistency in document analysis.

Features:

  • 🔍 Built-in intelligence trained to recognize over 1,000 common provisions with capabilities to create custom models for organization-specific needs
  • 📄 Generative AI Smart Summaries that provide concise overviews of complex documents
  • 🧠 Machine learning system that accurately locates and categorizes information across multiple document types

Official site: Kira Systems


2. Ironclad – Contract Lifecycle Management

What is it? Ironclad provides a comprehensive contract lifecycle management platform with AI capabilities integrated throughout the entire process. Its Jurist AI legal assistant helps draft contracts while its intelligent repository makes managing and analyzing agreements efficient.

Features:

  • 🔄 Streamlined workflows from contract creation through approval, signature, and post-execution management
  • 📊 AI that extracts critical metadata, identifies non-standard language, and provides analytical insights across the contract portfolio
  • 🔗 System that connects contract data with business operations, turning agreements into actionable intelligence

Official site: Ironclad


3. Luminance – AI-Powered Legal Analysis

What is it? Luminance employs Legal-Grade AI to transform contract review and document analysis. The platform instantly reads and forms an understanding of documents, highlighting anomalies and potential issues that require attention from human reviewers.

Features:

  • ✏️ AI-Powered Negotiation capabilities for redlining contracts with suggested changes
  • 🗂️ Intelligent Contract Repository for organizing and searching agreements
  • 💬 Legal-Grade Chatbot for answering contract-related questions without manual searching

Official site: Luminance


4. LawGeex – Automated Contract Review

What is it? LawGeex delivers contract review automation through AI technology that reviews, redlines, and negotiates contracts based on predefined company policies. The platform transforms internal legal guidelines into digital playbooks for consistent review.

Features:

  • 📝 Automated initial review process that reduces time spent on routine contracts
  • ⚠️ Intelligent system that identifies problematic clauses and suggests alternative language
  • ⚖️ Risk assessment tools that allow legal professionals to focus on strategic issues rather than repetitive review tasks

Official site: LawGeex


5. Evisort – Contract Intelligence Platform

What is it? Evisort’s contract management platform leverages a large language model built specifically for contracts. The system automatically extracts key provisions, identifies risks, tracks obligations, and helps maintain compliance across an organization’s entire contract portfolio.

Features:

  • 🛠️ Customizable AI models that can be trained for specific contract types without requiring coding skills
  • 🔎 Intelligent search capabilities for finding specific clauses or terms across thousands of documents instantly
  • 📈 System that turns agreements into structured data for business insights and risk management

Official site: Evisort


6. Thomson Reuters CoCounsel – Legal AI Assistant

What is it? Thomson Reuters CoCounsel serves as a professional-grade generative AI assistant designed for legal work, including contract review. The platform combines AI capabilities with Thomson Reuters’ authoritative legal content from Westlaw and Practical Law.

Features:

  • 📄 Document analysis that quickly identifies key provisions and summarizes complex terms
  • 🚩 Risk detection that highlights potential issues or inconsistencies in contracts
  • 🔒 Professional-grade security and performance that meets the standards of legal departments and law firms

Official site: Thomson Reuters CoCounsel


7. Lexis+ AI – Research-Integrated Contract Analysis

What is it? Lexis+ AI integrates artificial intelligence into the LexisNexis legal research ecosystem for contract review and document analysis. The Protégé™ AI assistant helps legal professionals identify issues in contracts, extract key information, and connect findings to relevant legal precedents.

Features:

  • 📚 Context-aware analysis that combines AI with LexisNexis’ extensive legal database
  • ⚖️ Identification of potential regulatory conflicts with suggested alternative language
  • ✓ Compliance verification with applicable laws for specialized or regulated agreements

Official site: Lexis+ AI


8. Spellbook – Word-Integrated Legal AI

What is it? Spellbook brings advanced legal AI directly into Microsoft Word, enabling lawyers to streamline contract review without switching applications. The platform leverages multiple large language models, including OpenAI’s GPT-4o, to provide assistance tailored specifically to legal work.

Features:

  • 🔍 Risk identification with automatic redlines added to contracts
  • ✍️ AI drafting of new agreements from scratch or based on precedents
  • 📄 Legal AI agent capabilities for handling multi-document transactions

Official site: Spellbook


9. Harvey – Professional Legal AI Platform

What is it? Harvey provides a professional-class AI platform designed for complex legal work, including contract review. The system offers domain-specific AI models for legal, regulatory, and tax matters, enabling contextually appropriate analysis for specialized contract situations.

Features:

  • 🤖 AI Assistant for handling complex contract analysis tasks
  • 📚 Knowledge features for grounded research with citations to support contract review
  • 🔐 Vault for secure document analysis with confidentiality safeguards

Official site: Harvey


10. LegalOn Technologies – Playbook-Based Review

What is it? LegalOn Technologies provides AI-powered contract review using attorney-written content and pre-built playbooks. The system analyzes agreements and generates redlines based on an organization’s preferred positions, reducing time required for initial review.

Features:

  • 🧠 AI engine trained to identify legal nuances and potential risks within different agreement types
  • 📋 Standardized review processes across legal teams for consistent results
  • ⚡ Efficient review system optimized for high-volume contract environments

Official site: LegalOn Technologies


11. Summize – Word-Integrated Contract Intelligence

What is it? Summize accelerates contract review by integrating AI capabilities directly into Microsoft Word. The platform’s AI agents suggest amendments, redline problematic language, and generate concise summaries of complex agreements within the familiar document environment.

Features:

  • 💬 AI-powered chatbot (Ask SIA) that answers specific questions about contract content
  • 🔍 Contextual understanding of legal language to identify potential issues missed in manual review
  • 🔄 Seamless integration with existing workflows for minimal adoption friction

Official site: Summize


12. Legartis – Multilingual Contract Analysis

What is it? Legartis leverages a combination of proprietary AI and large language models for automated contract review. The platform identifies relevant clauses, extracts critical data points, and flags potential risks, enabling legal teams to focus on substantive issues.

Features:

  • 🔄 Streamlined review processes for legal, sales, and procurement departments
  • 🧠 Self-improving AI that becomes increasingly familiar with an organization’s specific contracts
  • 🌐 Multi-language processing capabilities for businesses operating in international environments

Official site: Legartis


13. Percipient – Hybrid AI-Human Review

What is it? Percipient combines AI technology with human legal expertise for efficient contract review services. The platform automates initial analysis of agreements before routing documents to appropriate human reviewers for final assessment.

Features:

  • 🤝 Hybrid approach for handling complex contractual situations while delivering time savings
  • ⏱️ Streamlined workflow tools for the entire review process from submission to approval
  • 👁️ Transparency and accountability features throughout the review sequence

Official site: Percipient


14. Aline – Contract Lifecycle Software

What is it? Aline offers contract software focused on drafting, redlining, analyzing, and managing agreements. The platform’s AI capabilities enable efficient creation and review of contracts against organizational standards with comprehensive repository management.

Features:

  • 📝 Efficient template-based contract creation with AI assistance
  • 💡 Contextual recommendations during review highlighting potential issues
  • 📋 Playbooks that reduce time for routine contract tasks while improving consistency

Official site: Aline


15. Luminance Diligence – Due Diligence Platform

What is it? Luminance Diligence specializes in AI-powered contract review for due diligence projects requiring analysis of large document volumes. The platform provides instant insights into legal concepts, automatically identifying anomalies across contract portfolios.

Features:

  • 🧠 Supervised machine learning for creating bespoke concepts specific to industries or transaction types
  • 📄 Automatic extraction of key information with clause and compliance checks
  • ⚠️ Outlier identification system that flags documents requiring human attention

Official site: Luminance Diligence


16. Pocketlaw – Business-Friendly Contract AI

What is it? Pocketlaw delivers AI-powered contract management designed for both legal and business teams. The platform streamlines contract workflows with AI agents (PLAI) handling drafting, reviewing, summarizing, and analyzing documents.

Features:

  • 💬 Conversational search allowing users to ask questions about contract content
  • ✏️ AI-powered markups that check contracts against established standards
  • 🔄 Accessibility for non-legal business users to democratize contract knowledge

Official site: Pocketlaw


17. iManage – Secure Document Intelligence

What is it? iManage provides a knowledge work platform with native AI capabilities for organizations in knowledge-intensive industries like legal services. The system includes specific features for contract review as part of its comprehensive document handling approach.

Features:

  • 🔍 AI capabilities for document analysis and critical information identification
  • ⚖️ Risk assessment tools for contract evaluation and compliance monitoring
  • 🔒 Strong security focus for handling sensitive agreements in regulated industries

Official site: iManage


18. Clio Duo – Practice-Integrated Contract AI

What is it? Clio Duo enhances the Clio Manage legal case management platform with AI-powered document analysis and summarization. Built on Microsoft Azure OpenAI GPT-4, the system extracts key details and helps prioritize review tasks.

Features:

  • 🔄 Integration with practice management tools for context-aware assistance
  • 🔗 Relationship understanding between contracts and broader matters
  • 📱 Connection of document review to client communications and deadlines

Official site: Clio Duo


19. NexLaw – Legal Research-Integrated Review

What is it? NexLaw functions as a comprehensive legal AI assistant with specific capabilities for contract review and drafting. Its ContractAI feature analyzes agreements to identify provisions, risks, and compliance issues before human legal review.

Features:

  • 📚 Case Law Summarizer for extracting insights from legal texts
  • 🔍 Legal Research module for accessing global legal databases
  • 📄 Integration of contract review with current case law and regulatory requirements

Official site: NexLaw


20. Paxton – Comprehensive Legal Assistant

What is it? Paxton serves as an AI legal assistant with document analysis capabilities applicable to contract review. The platform streamlines the process by automatically identifying key provisions, potential risks, and inconsistencies across agreements.

Features:

  • 🔗 Research capabilities connecting contract language with relevant case law
  • ✍️ Accelerated drafting process for contract amendments and responses
  • 📊 Document analysis tools valuable for teams seeking broader AI assistance

Official site: Paxton

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