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Free Private AI Contract Review Tool

ContractScanner flags risky clauses and missing protections using AI that runs in your browser. Your contract text never leaves your device.

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No signup required. 100% private. Free forever.

Built for founders, freelancers, procurement teams, and anyone who signs contracts

What you get

Contract Safety Score — 0-100 risk rating with letter grade
Clause-by-clause analysis — every risky clause identified and explained
Missing protections — standard clauses that should be there but aren't
Negotiation advice — specific language changes to reduce your risk
Privacy guarantee — powered by Gemma 4 running on your GPU, zero network requests
Instant results — analysis in 30-90 seconds, no waiting for a lawyer

How it works

1
Load AI ModelOne-time ~1.5GB download, cached after
2
Paste ContractNDA, SaaS, freelancer, vendor, employment
3
Get Risk ReportScore, risks, missing clauses, fixes

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This browser tool uses a lightweight model for quick scanning. For enterprise deployments with deeper analysis and integration — we build custom solutions.

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A free AI contract checker that runs entirely in your browser

Contract Scanner is a free AI contract checker for founders, freelancers, procurement teams, and legal operations teams who need to check a contract or NDA before signing — without uploading sensitive text to a server. The tool runs AI analysis locally in supported browsers using WebGPU, so the contract text stays on the user's device.

What the contract check covers

Paste a contract and the checker produces a safety score, identifies risky clauses, flags missing protections, and suggests negotiation points. It is useful for first-pass review of NDAs, independent contractor agreements, SaaS contracts, services agreements, and procurement documents.

Automated NDA review

NDAs are the most common document people check before signing. The scanner flags one-sided confidentiality obligations, missing time limits, overly broad definitions of confidential information, and non-compete language hidden inside NDA templates — a fast automated NDA review before you involve a lawyer.

Privacy model

Most online contract checkers upload your document to a server. This one doesn't: analysis runs in your browser and no contract text is sent to any API. This local-first pattern matters for law firms, procurement teams, and companies with strict data-handling policies.

Important limitation

Contract Scanner is a risk triage tool, not legal advice. It helps users decide what to review more carefully and what to ask a qualified lawyer, commercial lead, or procurement specialist before signing.

Frequently asked questions

Is this contract checker really free?

Yes. There is no signup, no upload, and no payment. The AI model downloads to your browser once and runs on your own device.

Can I use it to review an NDA?

Yes. NDA review is one of the most common uses. Paste the NDA text and the checker flags one-sided obligations, missing time limits, broad confidentiality definitions, and unusual clauses worth negotiating.

Does my contract get uploaded anywhere?

No. The analysis runs entirely in your browser using WebGPU. Your contract text never leaves your device — there is no server-side processing and no data collection.

Is an AI contract check a substitute for a lawyer?

No. It is a first-pass risk triage that tells you what to look at more carefully. For significant agreements, have a qualified solicitor or lawyer review the contract before signing.