Markup that speaks
your language
Comprehensive document review tailored to your needs. Redline incoming agreements based on playbooks, your golden standard templates, or your freeform instructions.


Turn redlines into leverage
Easily build your own playbooks based on your precedents, or upload your existing ones, or choose one of our 30 built-in playbooks. Transform your negotiating positions into systematic advantages.

Built for lawyers, not writers
As lawyers, we're not just producing redlines, not just writing text. Sonar Legal is capable of comprehensive risk analysis to spot the key risks of the agreements, for you to decide to proceed accordingly.
Smart enough for M&A.Fast enough for NDA.

Your second set of eyes
Don't let a silly typo ruin the excellent legal work you have done for weeks. If you want to sleep well after you've hit 'send' on that 100-page SPA, this feature is for you.
Explore More Features
Word Add-In
Sonar Legal offers the world's deepest integration inside Microsoft Word, supporting the entire drafting lifecycle from initial draft to final deliverable. Our complete suite handles definition tracking, redlines, error checks, playbooks, automations inside Microsoft Word. We're also the only legal tech solution that fully automates document formatting end-to-end—the bottleneck everyone feels but nobody addresses.
Outlook Add-In
Sonar for Outlook brings the same deep integration excellence of our Word Add-In into your email workflow. We've engineered comprehensive email drafting, polishing, and proofreading capabilities that leverage your personal writing style and custom templates. As a global first, Sonar Legal introduces track changes functionality to Outlook, solving the feedback loop between junior and senior lawyers once and for all.
Web Application
Sonar Legal's web platform is the perfect solution for bulk operations and large-scale document management. Extract structured information from multiple documents into table format, conduct comprehensive legal research across your entire document repository, or connect your OneDrive and SharePoint to instantly locate that precedent memo you know exists but can't find.