Spellbook is contract review and drafting software for transactional lawyers working in Microsoft Word. The homepage says it uses GPT-5, Claude, and other LLMs, and calls that help 10x faster. Review mode offers redlines and comments you accept or skip. Draft mode writes clauses from AI or from precedents in a Clause Library. Signed contracts, the homepage says, can be stored, searched, and watched for renewals.
Official website · spellbook.com
Spellbook fits lawyers whose markup already happens in Microsoft Word and who want that pass to follow saved instructions. Approval is the control that matters: you choose which comments are applied, you can accept several changes together, and edits appear under your name. Drafting assumes you already have preferred language. It is a poor fit if you need a posted seat price, a case-law research product, or the policy text behind the compliance labels. Those items are absent from the public pages. Time-saved headings on the homepage are vendor copy, not a timed result.
The review page tells lawyers to add precise redlines to your contracts—right in Microsoft Word. Spellbook meticulously scans for client risks, drafting errors and other issues, then returns instant redline and comment suggestions. Spellbook reviews entire documents instantly and drafts comments. You choose which are approved and applied. For several edits at once, review, edit, and accept multiple changes in one go. Edits appear under your name, so you can forward redlined reviews to clients without extra work. The homepage also says to surgically redline contracts and negotiate from your side, with every suggestion tracked. These pages do not call the redline a signed opinion. They say the product works in Microsoft Word and that you can connect Spellbook to tools the team already uses, but they name only email and Slack as intake sources.
Official documentationPlaybooks, on the review page, are saved instructions for how you want Spellbook to review a document. The homepage describes checklists enforced on every review, standard playbooks across contract reviews, and catching non-standard terms across vendor agreements. Those lines are the site’s examples, not a scored clause list. The review page says Spellbook learns your preferences and instantly gives redline recommendations that favor your party. That stays a suggestion until you accept it. Ask is quick answers to complex questions. Compare, also called Market, compares contracts to industry standards. Neither page shows a sample question, a citation, or what that standard set contains.
Official documentationThe homepage says Spellbook can draft new clauses, full agreements, and revisions from AI or your precedents in seconds. The draft page says it detects the document’s substance and drafts relevant, ready to use language, while you direct which content is approved and applied. It lists contract type, jurisdiction, party details, and writing style. That list is not proof a jurisdiction guess is right. You can also search your precedent library. Upload documents to your Clause Library to reference key language you want to repurpose, store favourite clauses, and draft from preferred terms and past work. Share a document with yourself or the team, then insert it in line with a click. The page says you can review, draft, and chat in 140+ languages, next to Try Spellbook Free, without naming them. Associate is the first AI agent that can assemble multi-document transactions. The pages stop at that sentence.
Official documentationIntake, on the homepage, says contracts are pulled in automatically from email and Slack with a full first-pass review run against your standards. The pages do not name the mailbox, the channel, or how two attachments in one thread are handled. After signature, every signed contract is stored, searchable, and monitored for renewals and new risks. Both lines sit next to Autonomous Contract Management and an early-access note. Zero data retention means our LLM providers never learn from, train on, or store your data. That sentence is about the providers, not a claim that Spellbook itself never keeps the file. The following sentence says Spellbook is built for legal-grade confidentiality and has SSO, MFA, encryption, and audit controls. The page then lists SOC 2 Type II, HIPAA, GDPR, and EU AI Act as labels, without a report or a scope. The signup form asks if you do firm or in-house work and what size the organization is. It does not state a seat minimum.
Official documentationStarts from the homepage’s line about supplier MSAs across multiple countries. Open the MSA in Microsoft Word, pick the playbook with your fallback positions, and let the review pass propose redlines and comments. Keep a liability number the client already approved if the suggestion changes it. Jurisdiction is one of the fields the draft page says Spellbook detects. On a multi-country MSA, treat that as a prompt to read the governing-law clause, not as local advice.
When the other side marks up one section, a suggested path is the draft tools rather than a full rewrite. Search the precedent library or Clause Library and generate a replacement from preferred terms and past work. You still direct which content is approved, then insert it in line with a click. A fluent paragraph is not agreement. Recommendations that favor your party can point the wrong way when you mean to concede. Suggested only: edit that sentence before it goes back.
A suggested library workflow follows the draft page. Upload agreements that hold clauses you want to reuse, keep them private, or make them accessible to your team. The next draft searches that library. A playbook can hold the same standard so later reviews check against it. Share only language the firm may reuse.
The homepage shows Start your 7-day free trial beside Book a Demo and Login, and the form asks for a business email.
Run review so suggestions return as redlines and comments, then compare them with the saved playbook.
Choose comments one by one, or review, edit, and accept multiple changes in one go. Accepted edits appear under your name.
Search the precedent library or Clause Library, approve the clause, and insert it in line with a click.
A price was not verified on the pages reviewed here. They show Start your 7-day free trial, Book a Demo, Login, and Try Spellbook Free. A plan name and a dollar amount were not verified on those pages. Subscribe for free is The Redline newsletter, not a product tier.
Search results quote conflicting seat prices that are not in the public pages, so they are omitted. Trial eligibility, any seat cap, and what happens after seven days are not stated. Confirm the quote on Spellbook’s pricing page before budgeting a team.
You need a firm legal workspace that is not centered on a Word redline.
These Spellbook pages center on Word redlines, playbook review, and precedent drafting, and they do not describe Harvey. Use that listing when the job is the broader workspace rather than markup inside one agreement.
The system of record matters more than the Word markup.
Ironclad is the neighboring contract-operations listing. Spellbook’s pages do say signed files can be stored and watched for renewals, but the edit surface they document is Microsoft Word. Pick Ironclad when the system of record is the job, not the markup.
The open task is legal research rather than a clause edit.
CoCounsel is its own legal-team listing. These Spellbook pages cover contract review, drafting, playbooks, and a clause library, not a research citator. Choose CoCounsel when the open question is authority research rather than a redline in the agreement.
No. They show a 7-day free trial, Book a Demo, Login, and Try Spellbook Free. Subscribe for free is the newsletter. Conflicting dollar amounts on other sites are not copied here.
SourceIn Microsoft Word. The review page says the product drafts comments on the open file and you choose which are approved and applied, including several at once. Edits appear under your name so the redline can be forwarded without extra work.
SourceThe homepage says zero data retention means the LLM providers never learn from, train on, or store your data. It lists SSO, MFA, encryption, audit controls, and the labels SOC 2 Type II, HIPAA, GDPR, and EU AI Act.
SourceYes, according to the draft page: upload documents to the Clause Library, store favourite clauses, and share them with yourself or the team. New language can follow preferred terms and past work. The pages do not state a license or a library-size limit.
SourceThe draft page says review, draft, and chat work in 140+ languages and does not name them. The homepage says drafting and review use GPT-5, Claude, and other LLMs. It does not assign a model to a click.
SourceAsk is quick answers to complex questions. Compare, also called Market, compares contracts to industry standards. Associate is multi-document workflows and an agent that can assemble multi-document transactions.
SourceOct 6, 2026 · NavHunt editorial
NavHunt did not run Spellbook, did not open a contract in Microsoft Word, and did not time a review. This profile uses the homepage, the review feature page, and the draft feature page reviewed on 6 October 2026. Vendor headings about time saved and customer quotations are not treated as measured results. Dollar figures that appear only on third-party search results were not copied. This description is based on Spellbook's official materials reviewed on 2026-10-06, including Spellbook homepage, Spellbook contract review in Word, Spellbook drafting and clause library.
Open a contract in Microsoft Word, compare the playbook suggestions, and approve only the edits you want on the page.