What is Spellbook?
Spellbook is an AI contract drafting and review assistant that works inside Microsoft Word for lawyers and in-house legal teams. The Toronto company says 5,000 legal teams use it, including teams at Dropbox, eBay and Crocs, and it raised a $50 million Series B in 2025.
Spellbook's advantage is staying where lawyers already work: it runs as a Word add-in, so you review and redline contracts without uploading them to a separate app. It flags risky or missing clauses, suggests redlines, drafts new language, compares terms against market benchmarks and applies your playbooks. Its Associate agent handles multi-document tasks. Law firms and in-house teams use it to speed up contract review, negotiation and drafting. Its newer Autonomous Contract Management product extends the same AI to managing contracts after signature.
Main Features
- Reviews contracts in Word and flags risky or missing terms.
- Suggests redlines you can accept or edit.
- Drafts new clauses and full agreements from instructions.
- Compares terms against market standards with Benchmarks.
- Applies your team's negotiation playbooks.
- Handles multi-document tasks with the Associate agent.
- Answers questions about a contract in plain language.
- Integrates with existing document and contract systems.
How to Get Started with Spellbook
- Start a 7-day free trial at spellbook.com.
- Install the Spellbook add-in for Microsoft Word.
- Open a contract and run a review.
- Accept or edit the suggested redlines and drafts.
Spellbook Pricing
Spellbook offers a 7-day free trial. It does not publish prices; plans for law firms and in-house teams are priced by the number of team members, and you book a demo for a quote. In-house plans include a playbook build service.
Who Should Use It?
- Transactional lawyers at law firms.
- In-house counsel reviewing vendor and sales contracts.
- Solo practitioners handling many agreements.
- Legal operations teams standardizing playbooks.
- Contract managers who negotiate standard terms.
Spellbook Alternatives
- Harvey: broad legal AI platform for large firms
- Legora: collaborative legal AI for research and review
- Genie AI: AI contract drafting with templates for SMEs
Frequently Asked Questions
Is Spellbook free?
No, but it offers a 7-day free trial. Pricing is custom and based on team size.
Does Spellbook work in Microsoft Word?
Yes. Spellbook runs as a Word add-in for reviewing and drafting contracts.
Spellbook vs Harvey: which is better?
Spellbook is better for contract work inside Word and is easier for smaller teams to adopt. Harvey is a broader legal AI platform aimed at large firms.
What is Spellbook used for?
Spellbook is used to review, redline and draft contracts with AI. Lawyers use it to speed up negotiation and drafting.