Legalese Decoder vs CoCounsel (formerly Casetext)

Legalese Decoder uploads contracts, agreements, and similar legal files, then returns a plain-English rewrite of the full document. You submit a file on the web app, and it identifies key terms, matches them to definitions in its legal database, and rephrases the text in simpler language. No registration is required to start, and the site says results arrive within minutes.

Most legal AI tools answer one-off questions or draft clauses. Legalese Decoder focuses on rewriting an entire document end to end. Professional and Business tiers add a contract analyzer that flags risk, fairness, and anomalies, plus a legal non-advisor that answers document-specific questions without crossing into licensed advice.

The site targets freelancers reviewing client contracts, small business owners who cannot hire a lawyer for every agreement, and renters reading leases. Its FAQ lists contracts, agreements, and investment-related legal documents as supported inputs.

CoCounsel is a legal research and drafting assistant now owned by Thomson Reuters after acquiring Casetext in 2023 for $650 million. It runs case law research, document review, contract analysis, and guided drafting grounded in Westlaw and Practical Law rather than the open web.

Standalone legal chatbots pull from generic training data. CoCounsel ties every answer to Thomson Reuters authority, which means citations trace back to Westlaw primary law and Practical Law guidance. The 2026 next-generation release adds Workspaces for matter-specific context, Brief Builder for agentic motion drafting, and a firm-intelligence layer for encoding internal expertise.

Litigation teams, transactional lawyers, and in-house counsel at firms already paying for Westlaw use it to cut research time and review contracts at scale. Pricing is sales-led with no public rate card, and the tool delivers the most value when bundled with an existing Westlaw subscription.