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ClauseBase
What ClauseBase is
ClauseBase provides legal drafting and review tools for creating, refining, and checking documents, including tools used within Microsoft Word. ClauseBuddy can turn a template or document into an interactive questionnaire for generating consistent, customized documents. Its AI review and proofreading tools identify risks, errors, and inconsistencies. Clause Finder lets teams build searchable clause libraries and insert saved clauses into Word documents. ClauseBuddy is offered as a Word and Outlook add-in and as a standalone web application. Listed integrations include iManage, Contractify, Corporify, Google Maps, and company database lookups, with drag-and-drop and API integration options. ClauseBase states that it is ISO 27001:2022 certified. Production servers are hosted in Germany, and hourly encrypted database backups are stored in Paris. For typical questionnaire templates, business data sent to generate a PDF or DOCX is deleted within 60 to 120 seconds. The company says it does not use customer data to train its own AI models. Pricing is available by contacting ClauseBase.
Who it suits
ClauseBase may suit legal teams creating and reviewing contracts, especially those working in Microsoft Word and using questionnaires or clause libraries. It focuses on drafting rather than contract storage or archiving.
What it does well
- Questionnaires generate consistent documents from templates.
- AI tools identify document risks, errors, and inconsistencies.
- Searchable clause libraries support insertion into Word documents.
- Available as Word and Outlook add-ins and a web app.
- Typical questionnaire data is deleted within 60 to 120 seconds.
What to know first
- No free plan is listed.
- Pricing is available by contacting ClauseBase.
- The product does not provide contract storage or archiving.
- It does not offer its own ready-made legal templates.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Clause9 | Contact us · Advanced drafting · clause-based automation · advanced questionnaires · API | On request |
| ClauseBuddy | Contact us · AI reviewing · clause libraries · Word/Outlook integration · template-based drafting | On request |
As clausebase.com lists them, read 15 Oct 2026. The maker's own page has the final word.
Getting started
- Visit the ClauseBase website.
- Contact ClauseBase to ask about pricing for ClauseBuddy or Clause9.
- Use ClauseBuddy as a Word or Outlook add-in, or as a standalone web application.
- Connect through the listed integrations, drag-and-drop options, or API where suitable.
Verdict
ClauseBase centers on drafting, document review, questionnaires, and reusable clauses, with Word and Outlook options. Teams seeking contract storage or ready-made templates should account for those exclusions.
Questions
Does ClauseBase have a free plan?
No. ClauseBase is listed as a paid product.
How much does ClauseBase cost?
Pricing is available on request by contacting ClauseBase.
Which platforms does ClauseBase support?
Listed platforms include API, extension, Linux, macOS, self-hosted, web, and Windows. ClauseBuddy is available as a Word and Outlook add-in and as a web application.
Does ClauseBase include contract storage or archiving?
No. ClauseBase says its focus is contract drafting and it does not provide contract storage or archiving.
Can ClauseBase connect to other tools?
Listed integrations include iManage, Contractify, Corporify, Google Maps, and company database lookups. Drag-and-drop and API integration options are also listed.
Does ClauseBase provide its own legal templates?
It does not offer its own ready-made legal templates. Third-party inspirational legal content is available.
Facts from ClauseBase's own pages
- AI data use
- ClauseBase says it does not use customer data to train or fine-tune its own AI models, and that it passes selected data fragments to LLMs to answer prompts. · clausebase.com, 3 Oct 2026
- AI functions
- The platform applies AI to clause search, document analysis, paragraph drafting, clause analysis and automatic clause extraction. · clausebase.com, 15 Oct 2026
- AI review
- ClauseBuddy’s AI reviewing and proofreading tools identify risks, errors, and inconsistencies in documents. · clausebase.com, 3 Oct 2026
- Authentication
- Clause9 supports optional two-factor authentication and Azure SSO; ClauseBuddy supports Azure SSO and revocable 28-character security codes. · legal.clausebase.com, 15 Oct 2026
- Automatic styling
- ClauseBase automatically adapts inserted clauses to a document's layout, styling and numbering. · clausebase.com, 15 Oct 2026
- Browser limitation
- Browser use works without installation but requires copying and pasting and omits some Word-integrated functions such as house-style enforcement. · help.clausebuddy.com, 15 Oct 2026
- Clause9
- Clause9 uses clause-based automation to generate complex customised legal documents from reusable building blocks. · clausebase.com, 15 Oct 2026
- ClauseBuddy
- ClauseBuddy is a Microsoft Word and Outlook add-in plus browser application for clause libraries, drafting, proofreading and AI-assisted review. · clausebase.com, 15 Oct 2026
- ClauseBuddy API
- ClauseBuddy provides a Swagger-based REST API for Smart Documents, user accounts, folders, files, saved answers and short-lived login URLs. · clausebase.com, 15 Oct 2026
- Clause libraries
- Users can extract clauses from precedents, organise searchable libraries and reuse clauses directly in Microsoft Word. · ca.linkedin.com, 15 Oct 2026
- Company founded
- ClauseBase was founded in 2019 by Maarten Truyens with Senne Mennes and Robbert Jacobs. · clausebase.com, 15 Oct 2026
- Company size
- LinkedIn lists ClauseBase as privately held, headquartered in Leuven and employing 11–50 people. · ca.linkedin.com, 15 Oct 2026
- Contract-management limitation
- ClauseBase says it does not provide contract storage, archiving or full contract-management functionality. · clausebase.com, 15 Oct 2026
- Data hosting
- ClauseBase says its production servers are hosted by Hetzner in Germany and hourly encrypted database backups are stored with Scaleway in Paris. · clausebase.com, 3 Oct 2026
- Data residency
- The company says its servers are hosted in Germany and European customer data is stored in the EEA. · legal.clausebase.com, 15 Oct 2026
- Data retention
- For typical questionnaire templates, business data sent to the server to generate a PDF or DOCX is deleted within 60 to 120 seconds after generation. · clausebase.com, 3 Oct 2026
- Data-training policy
- ClauseBase says customer data is not used to train or fine-tune its own AI models, although selected fragments may be sent to external LLMs for responses. · clausebase.com, 15 Oct 2026
- Documentation
- The help center includes installation, enterprise deployment, system requirements, access instructions, FAQs and quick-start videos. · help.clausebuddy.com, 15 Oct 2026
- Embedded programming
- Clause9 embeds the Clojure programming language for advanced clause conditions, calculations and transformations. · clausebase.com, 15 Oct 2026
- File import
- Drag-and-drop integrations accept Word, Excel, PDF, scanned PDF, plain text, web pages and JSON data. · clausebase.com, 15 Oct 2026
- First drafts
- ClauseBuddy turns a template or document into an interactive questionnaire for generating customised and consistent documents. · clausebase.com, 3 Oct 2026
- GraphQL API
- The GraphQL interface supports clause search, version retrieval, structured JSON, DOCX/PDF rendering and clause composition. · clausebase.com, 15 Oct 2026
- Headquarters
- Wilsele (Leuven), Belgium · clausebase.com, 23 Sept 2026
- Installation limit
- There is no MSI, EXE or traditional installer; enterprise deployment uses Microsoft AppSource or Office 365 administration. · help.clausebuddy.com, 15 Oct 2026
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