Sign every deal
on your terms.

Create, review, and close business agreements with confidence, so you always know exactly what you're signing.

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United States

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NDA· Independent Contractor· Service Agreement· Freelance Contract· Vendor Agreement· Partnership Agreement· Letter of Intent·

A bad contract rarely hurts all at once.

It shows up one missing term at a time. Scroll through the moments where vague language turns into a real business problem.

01

The payment never comes.

Timing, milestones, and late-payment terms were never made clear. The work is done, but the invoice is still open.

02

The supplier changes the deal.

Materials, delivery, or quality standards shift after production starts because the agreement never pinned them down.

03

They walk. Your contract lets them.

Scope, ownership, and termination were left open to interpretation. You only discover the gap when the relationship ends.

The problem usually starts with the clause that was never there.

How it works

Built for the way you work.

Describe the real situation and let Claustar turn it into a focused, working draft.

01 · Start the deal

Describe what you need. Get a working draft.

Start with the real situation, not a blank template. Claustar asks focused questions and builds the agreement around the deal you are making.

Contract Creation Focused Questions Working Draft
FFounder
Built forFounders
02 · Shape the terms

Understand the agreement before the work starts.

Walk through scope, payment, ownership, and termination in plain English before anything is finalized.

Plain English Clause Breakdown Key Terms
FFreelancer
Built forFreelancers
03 · Review and redline

See what's risky. Fix it before you send it.

Claustar analyzes every clause against the deal you described, flags missing protections or one-sided terms, and lets you accept, reject, or edit each suggested change inline.

Clause Analysis Redline Accept or Reject
FFounder
Built forFounders
04 · Get aligned

One agreement. Everyone working from it.

Bring collaborators into the same document, gather suggestions, and keep every change connected to one version.

Collaborate Suggestions Version Control
AAgency lead
Built forAgency leads
05 · Close and keep it

Sign it. Store it. Find it when you need it.

Send the final agreement for e-signature and keep the completed document with the rest of the deal. No tool switching and no missing final version.

E-Signature Document Storage Status Tracking
OSmall business owner
Built forBusiness owners
Pricing

Simple pricing. No surprises.

Only new documents you draft count toward your plan. Uploading and reviewing contracts is free. Start at $0.

Free
$0

Start free. No card required.

  • Review any contract, free
  • Draft your first documents free
  • AI document chat
  • Plain-English clause guidance
Start free
Most popular Pro
$39 /mo

For founders and freelancers always working a deal.

  • 20 new documents per month
  • 10 active projects
  • 5 personal templates
  • AI editing and e-signature
  • Uploaded contracts don't count
Get started
Business
$79 /mo

For teams managing more contracts together.

  • 100 new documents per month
  • 25 active projects
  • 15 personal templates
  • Up to 25 team seats
  • Everything in Pro
Get started
View full pricing →
FAQ

Questions we hear a lot.

Can I just use ChatGPT or Claude for this? +

You can, but you are trusting an AI with no way to tell you where its answer actually came from. General AI is trained on the open internet, which means anything from outdated statutes to Reddit threads and expired templates, with no distinction between them. Claustar runs on a knowledge base of legal rules that are cross-checked across multiple models and signed off by an attorney before they ever reach your document, so there is real backing behind what you are drafting. And once the draft is done, a chatbot cannot bring the other party in to negotiate, redline, and sign. Claustar handles all of that in one place.

Is this a law firm? +

No. Claustar is not a law firm and does not provide legal advice. We build documents grounded in attorney-built templates and flag clauses worth a second look. The AI walks you through your situation. It does not make legal decisions for you.

What happens if I need real legal advice? +

For high-stakes situations, we recommend having a licensed attorney review the final document. Because Claustar has already handled most of the drafting, an attorney is reviewing rather than building from scratch, which keeps that cost far lower.

What kinds of agreements can I build? +

Freelance contracts, supplier agreements, brand partnerships, NDAs, co-packer agreements, service agreements, influencer contracts, and more. If it is a business agreement, Claustar can help you build it.

What happens when I upload a contract someone sent me? +

Claustar walks the document clause by clause and flags every clause worth a second look. Vague terms, missing protections, one-sided language. You see exactly what you are signing before you sign it.

Is my information secure? +

Your documents are encrypted and private. We do not share, sell, or use your agreements for any purpose outside of generating your document.

Do I need a credit card to start? +

No. Your first document is completely free. No card, no commitment.

Sign your next deal
on your terms.

Create your first agreement in minutes, or upload one you have received and see exactly what is in it. No card. No commitment.

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