Free AI Contract Review Tools That Are Actually Free (2026)

ChatGPT is the free contract review tool most people already use — and for a quick check on a standard NDA or freelance agreement, it works.

For structured risk scoring without paying, Pact (Apple only) and Legitt AI (any device) both offer dedicated free tiers with clause-level analysis. But most “free AI contract review” lists aren’t honest about what “free” means. They’ll feature a tool with a 7-day trial and a $99/month price tag right next to genuinely free options, with no distinction between the two. We drew a hard line: every tool in our “actually free” section meets three criteria — no credit card required, no expiration date, and enough functionality to produce a useful review. Tools that fail any one of those tests go in the trial section, clearly labeled.

Quick Comparison: What’s Actually Free vs. What’s a Trial

Actually Free (No Credit Card, No Expiration)

Free Trial Only (Requires Payment to Continue)

What “Actually Free” Means in This Article

We applied three tests to every tool on this list:

1. No credit card required. If the sign-up form asks for payment info, it’s a trial — even if they don’t charge you today.
2. No expiration date. A 7-day or 14-day window isn’t “free.” It’s a test drive.
3. Useful output at the free tier. A tool that shows you a teaser dashboard but locks the actual analysis behind a paywall doesn’t count as a review tool. It counts as a demo.

Five tools passed all three tests. Two others — ContractCrab and Spellbook — offer legitimate free trials but fail test #2. They’re worth trying if you might pay, but they’re not free tools.

Actually Free Tools: What You Get for $0

ChatGPT (Free Tier)

This is the option most people actually use, and it works better than dedicated tools want to admit. Paste your contract into ChatGPT’s free tier, ask “What are the biggest risks in this agreement?”, and you’ll get a clause-by-clause walkthrough within seconds.

What you get for free: Unlimited contract questions through conversation. No upload limits, no monthly caps. Ask it to explain specific clauses, flag risks, compare terms against industry standards, or translate legalese into plain English.

What’s behind the paywall: GPT-4o access with longer context windows, file upload support in the interface, and custom GPTs built for contract review.

Platform: Web and mobile — any device.

Privacy: OpenAI’s free tier uses conversations to improve future models by default. Your contract text could become training data. You can disable this in Settings > Data Controls > “Improve the model for everyone.” If you opt out, your conversations aren’t used for training — but the default is opt-in. For sensitive contracts, opt out first or redact identifying details before pasting.

Best for: One-off contract questions, clause explanations, and quick risk checks — especially if you already use ChatGPT for other tasks.

Verdict: The most flexible free option with zero artificial limits. The trade-off is unstructured output: you get paragraphs of explanation instead of a scored risk report. That’s fine for an NDA or a freelance agreement. For a 40-page commercial lease, you’ll want something with organized risk scoring.

Claude (Free Tier)

Claude handles contract analysis with strong logical reasoning, particularly on multi-clause interactions — catching, for example, that an indemnification clause combined with a liability cap creates an unbalanced risk allocation. The free tier has no per-document limit.

What you get for free: Unlimited contract conversations. Ask about risks, clause meanings, negotiation leverage, or enforceability concerns.

What’s behind the paywall: Higher usage limits, longer context windows, and priority access on Claude Pro ($20/month) and Team plans.

Platform: Web and mobile — any device.

Privacy: Anthropic’s Pro and Team plans do not train on user conversations. The free tier may use conversations for training, but an opt-out is available. Claude’s privacy posture is generally more conservative than ChatGPT’s defaults.

Best for: Users who prioritize privacy at the free tier, or contracts where clause interactions matter more than individual red flags.

Verdict: A strong alternative to ChatGPT with a more privacy-forward default. Like ChatGPT, it produces conversational analysis rather than structured risk reports. The reasoning quality on contract logic is excellent, but you’ll need to ask specific questions to get specific answers.

Pact (Contract Analyze)

Pact runs on iPhone, iPad, and Mac only — no Android, no web version. If you don’t use Apple devices, skip to the next section.

For Apple users, Pact’s free tier includes full risk scoring with plain-English explanations of what each flagged clause means and why it matters. The analysis goes deeper than conversational AI: instead of just tagging a clause as “high risk,” Pact explains the specific exposure and suggests what to negotiate.

What you get for free: Limited reviews per month with full risk scoring, clause-by-clause explanations, and negotiation suggestions.

What’s behind the paywall: Higher review volume at $7.99/week or $49.99/year.

Platform: iOS, iPadOS, and macOS only. No Android. No web app.

Privacy: Pact sends contract data to a third-party AI processing partner for analysis. That data may be used for model training under the partner’s default terms. For sensitive contracts, redact identifying details before uploading.

Best for: Apple users who want structured risk scoring on freelance contracts, leases, or NDAs — where understanding specific risk exposure matters more than just flagging clauses.

Verdict: The deepest free-tier analysis on this list, with a hard platform limitation. Read the full Pact review for a detailed breakdown of features.

Disclosure: Pact is built by Shepherdstack LLC, the company behind this blog. We review it alongside competitors using the same criteria.

Legitt AI

Legitt AI gives you 10 contract reviews per month on any device with a browser. Upload a PDF or Word document, and the tool extracts clauses, tags risk levels, and generates a plain-English summary. No app to install, no credit card, no platform restrictions.

What you get for free: Clause extraction, risk tagging, contract summaries, and basic analysis for up to 10 documents per month.

What’s behind the paywall: Higher volume (the $14.99/month plan increases the cap), deeper analysis on unusual provisions, and team collaboration features at $24.99/month.

Platform: Web — works on any device with a browser.

Privacy: Dedicated contract review platform; their terms state uploads are processed for analysis, not used for model training. Review their privacy policy before uploading highly sensitive agreements.

Best for: Non-Apple users who want structured, repeatable contract review rather than conversational AI.

Verdict: A practical option for Android and Windows users who want organized risk reports. The 10-document monthly cap is the main constraint.

goHeather (Free Tier)

goHeather offers limited free “insights” on uploaded contracts — but “insights” is doing heavy lifting in that sentence. The free tier shows you surface-level observations, not the clause-by-clause analysis or risk scoring that the paid plans ($99/month or $950/year) provide.

What you get for free: Basic contract insights. Not a full review, not risk scoring, not clause extraction.

What’s behind the paywall: Full contract review, risk analysis, clause comparison, and Word integration at $99/month.

Platform: Web.

Best for: Testing whether goHeather’s paid interface suits your workflow before committing to $99/month. Not suitable as a standalone free review tool.

Verdict: Technically free, practically a demo. If you need a real review at no cost, use any of the four tools above instead.

Free Trial Tools Worth Knowing About

Two tools didn’t make the “actually free” list because they require payment after a trial period. Both are legitimate products — they’re just not free.

ContractCrab offers a free trial, then charges $3 per individual contract or $30–75/month for volume plans (120–500 documents). If you review contracts frequently and want a dedicated tool, the per-contract pricing is reasonable. But it’s not free after the trial ends.

Spellbook provides a 7-day trial, then charges roughly $99–350 per user per month (exact pricing isn’t public). Spellbook is built for lawyers and legal teams, not individual users reviewing a lease. For options at every price point, see our full tool comparison.

Can Free Tools Actually Catch Contract Problems?

Yes — with limits. Free AI contract review tools reliably flag five categories of risk:

• One-sided termination clauses that let the other party exit but lock you in
• Auto-renewal traps with narrow cancellation windows
• Overbroad non-compete or non-solicitation language that restricts your future work
• Missing liability caps that leave you exposed to unlimited damages
• Unusual indemnification obligations that shift all risk onto one party

A 2018 LawGeex study found AI achieved 94% accuracy on NDA issue-spotting, compared to 85% for experienced attorneys — in 26 seconds versus 92 minutes. That study was company-sponsored and tested a specific paid tool, so take the exact numbers directionally rather than as gospel. But the pattern holds across tools: AI catches standard contract risks reliably.

Where free tools fall short:

• Jurisdiction-specific enforceability. A non-compete that’s valid in Texas may be void in California. Free tools flag the clause but rarely assess state-specific enforceability.
• Clause interactions. An indemnification obligation that looks manageable on its own becomes dangerous when paired with an unlimited liability provision three pages later. Conversational AI tools like ChatGPT and Claude handle this better than automated tools, but only if you ask the right questions.
• Industry-specific standards. A SaaS vendor contract has different norms than a construction subcontract. Free tools apply generic risk frameworks.
• Negotiation strategy. Flagging a risk is step one. Knowing which risks the counterparty will actually negotiate on requires experience that free tools don’t provide.

Bottom line: free tools are better than signing blind. They catch the risks that cost most non-lawyers money. For high-stakes contracts (above $50,000, involving IP transfers, or carrying personal liability), consider involving a lawyer. The average attorney charges $349/hour (Clio, 2025), but a flat-fee NDA review runs about $340 on ContractsCounsel’s marketplace.

The Privacy Trade-Off with Free Tools

Free tools have the strongest incentive to monetize your data. Here’s what each free option actually does with your contract data:

ChatGPT (free tier): OpenAI’s default setting uses free-tier conversations to improve future models. Your contract text could become training data. You can disable this in Settings > Data Controls, but the default is opt-in. If you paste a confidential NDA into ChatGPT without changing this setting, that text may be used for training.

Claude (free tier): Anthropic’s Pro and Team plans explicitly don’t train on conversations. The free tier may use conversations for model improvement, but an opt-out is available. Claude’s default privacy posture is stricter than ChatGPT’s.

Pact: Sends contract data to a third-party AI processing partner for analysis. That data may be used for model training under the partner’s default terms. For sensitive contracts, redact identifying details before uploading.

Legitt AI: Dedicated contract review platform. Their terms state uploads are processed for analysis, not used for model training.

goHeather: Dedicated legal AI tool. Review their specific terms for data retention and training policies.

Red flags to watch for in any tool’s privacy policy:

• “We may use uploaded content to improve our services” without a clear opt-out
• No mention of data retention periods (how long do they keep your contracts?)
• Third-party data sharing clauses that don’t specify who receives your data
• No SOC 2 or equivalent security certification mentioned anywhere

Best practice for all free tools: Before uploading a sensitive contract, redact party names, specific dollar amounts, and proprietary terms. Replace “Acme Corp” with “Party A.” Replace “$2.4 million” with “$[AMOUNT].” The AI still analyzes the clause structure and risk allocation — it doesn’t need real names to flag a one-sided termination right. For a deeper look at AI security in legal contexts, read our data privacy breakdown.

When to Upgrade from Free

Free tools handle 80% of what non-lawyers need. The other 20% is when you should pay — either for a better tool or for a lawyer.

Upgrade to a paid tool when:

• You review more than 10 contracts per month (Legitt AI’s free cap; Pact’s free tier is also limited)
• You need to compare document versions side by side (redline/blackline comparison)
• You need Word or Google Docs integration for inline suggestions
• Your team needs shared access to review history

For paid options at every price point, see our full tool comparison.

Hire a lawyer when:

• The contract value exceeds $50,000
• The agreement involves IP assignment or licensing
• You’re signing a personal guarantee
• The other party won’t negotiate, and you don’t understand why specific terms exist
• You’re entering a regulated industry (healthcare, finance, government contracting)

The FTC’s $193,000 settlement with DoNotPay in February 2025 — for marketing an AI chatbot as a “robot lawyer” — is a useful reminder: AI reviews contracts, but it doesn’t practice law. Use free tools to understand what you’re signing, but recognize when the stakes require human judgment.

Frequently Asked Questions

Is there a truly free AI tool for reviewing contracts?

Yes. ChatGPT and Claude let you analyze contract text through conversation with no upload limits or expiration. Pact offers free structured risk scoring on Apple devices. Legitt AI provides 10 free reviews per month in a browser. All four are permanently free at their base tiers.

Can ChatGPT review my contract for free?

Yes. Paste your contract text into ChatGPT and ask specific questions: “What are the termination provisions?”, “Is the non-compete enforceable?”, or “Summarize the key risks.” You’ll get detailed explanations without structured risk scoring. The main caveat: ChatGPT’s free tier may use your input for model training unless you opt out in settings.

Are free AI contract review tools accurate?

Free tools reliably catch standard risks — auto-renewals, one-sided termination clauses, overbroad non-competes, and missing liability caps. They’re less reliable on jurisdiction-specific enforceability and interactions between clauses in different sections. For a lease review, they’ll flag most common red flags. For a complex M&A agreement, you need a lawyer.

What’s the best free AI tool if I don’t have an iPhone?

ChatGPT or Claude for quick checks — both work on any device with no setup. Legitt AI for structured risk reports with clause-level tagging (10/month cap). All three run in a browser.

Should I trust a free tool with my confidential contract?

It depends on the tool. ChatGPT’s free tier trains on your input by default (opt-out available). Claude’s free tier has stricter defaults. Pact sends data to a third-party AI partner whose default terms may allow model training. Legitt AI states it does not use uploads for model training. For highly confidential agreements — anything involving trade secrets, M&A terms, or pre-announcement financials — redact identifying details before uploading.