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Contract checker for Gixo Lex

Paste a contract, pick its type, and see in seconds which standard clauses are present and which mandatory ones are missing — across 22 contract types from NDAs and MSAs to employment contracts and leases. Deterministic clause-catalog matching, not AI opinion. Structural completeness, not legal advice.

See Gixo Lex Draft a contract
The checker belongs to the Lex legal workflow, where reviewability and drafting stay together.
Gixo Lex workspace showing a real generated contract draft with the Draft Checks review panel
A real Gixo Lex workspace — a drafted contract, generated from party and jurisdiction inputs, shown with its Draft Checks review panel. Work product for a qualified lawyer to review, not legal advice on its own.

What it checks, exactly

The same clause catalogs Gixo Lex drafts from — run in reverse against your document.

Mandatory-clause coverage by type
Every contract type has a catalog of standard clauses split into mandatory and optional — an NDA is checked for confidentiality and definitions; an MSA for scope, payment, liability, and termination. Your headings are matched against the catalog (plural-tolerant, word-boundary matching) and every mandatory clause comes back Present or Missing.
Defined terms & cross-references
Capitalized terms used repeatedly but never defined, and references to a Section, Clause, Exhibit, or Schedule that doesn't exist in the document — the classic artifacts of assembling a contract from two older ones.
Execution readiness
The mechanical pre-signature checks: parties identified, governing law stated, effective date present, signature blocks in place. The things that bounce a contract back from the other side's counsel before anyone reads clause one.

A completeness check, honestly framed

This tool answers one question reliably: does this document contain the structural parts a contract of its type is expected to have? It matches your headings against the same per-type clause catalogs Gixo Lex uses when drafting — 22 contract types, from confidentiality and IP agreements through services, corporate, employment, real-estate, and lending documents. Because the matching is deterministic, the result is reproducible: fix the gaps, re-run, and the missing list shrinks because the document changed.

What it deliberately does not do: judge whether a present clause is well-drafted, enforceable in your jurisdiction, or fair to your side. A "Present" indemnification clause can still be a terrible indemnification clause. This is the structural gate before legal review — it makes sure counsel's time goes to substance, not to noticing the termination section is missing. Anything you intend to sign should be reviewed by a qualified lawyer.

When the report shows missing clauses, that's the paid side of Gixo Lex: structured legal drafts across all 22 types with jurisdiction-aware structure and clause-level editing. Drafting is unlocked during your free 14-day trial, and after the trial generation requires a paid plan. Lex exports are available in PDF, DOCX, HTML, and TXT; drafts remain review-prep work product, not execution-ready legal advice.

Frequently Asked Questions

Is the contract checker really free?
Yes — no account, no usage cap. The check is deterministic clause-catalog matching, so each run costs nothing to serve. The paid product is contract drafting, not the check.
Is this legal advice?
No. It's a structural completeness check: it tells you which standard clauses are present or missing for the contract type, not whether any clause is well-drafted or enforceable. Have a qualified lawyer review anything you sign.
Which contract types does it understand?
22 types across seven families: NDA, IP assignment, license agreement; MSA, SOW, SLA, consulting agreement; shareholders agreement, share purchase, joint venture, partnership, MOU; employment contract, non-compete, invention assignment; lease and property sale; loan agreement and promissory note; terms of service, privacy policy, and power of attorney.
Does it use AI to read my contract?
No. Headings are matched against fixed clause catalogs with deterministic rules. Nothing is sent to a model, and the same contract always produces the same report.
See Gixo Lex AI Legal Document Generator How to Draft a Legal Document with Gixo Lex Workspace

Find the missing clauses before the other side does

Use structural checks inside Lex, then keep drafting, collaboration, and review in the same legal workspace.

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