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Spellbook

Free tier

AI-powered contract review and drafting built for lawyers — right inside Microsoft Word

Free tier available·All audiences·Powered by OpenAI (GPT-5), Anthropic (Claude Opus)

Key strengths

Native Microsoft Word integration for seamless contract reviewPlaybook-driven redlining aligned to firm-specific legal standardsMarket comparison against thousands of similar agreementsMulti-document AI agent (Associate) for complex workflowsEnterprise-grade security: SOC 2 Type II, HIPAA, GDPR, Zero Data Retention
Free tier + paid plans
Toronto, Canada
Founded 2022
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Technical Setup & Integration

Word Add-in Deployment

Spellbook is distributed as a Microsoft Word Add-in, deployable via the Microsoft 365 Admin Center for organization-wide rollout or installed individually from the Office Add-in store. No local infrastructure is required — all processing is handled in Spellbook's cloud environment.

Intake & Workflow Integrations

Contracts can be ingested from multiple upstream systems:

  • Email — forward incoming contracts directly into Spellbook's intake queue
  • Slack — trigger contract workflows from Slack messages or channels
  • Salesforce — connect deal documents from CRM records for auto-review on contract receipt

Playbooks & Standards Engine

Legal teams encode their firm's negotiation positions, fallback clauses, and risk thresholds into Playbooks. These are applied automatically during Review, ensuring every contract is redlined against your specific standards rather than generic rules.

Associate (AI Agent)

The Associate module is a multi-document AI agent that performs complex research, review, and redlining across document sets — ideal for due diligence bundles or multi-party agreements. It handles parallelized document processing with citation-backed output.

Security & Compliance

  • Zero Data Retention: contracts and data are never used to train LLMs
  • SOC 2 Type II certified
  • HIPAA, GDPR, CCPA, PIPEDA, EU AI Act compliant
  • Trust Portal and security FAQs available to enterprise customers