Harvey vs Proofly
Side-by-side comparison of features, pricing, and ratings
At a glance
| Dimension | Harvey | Proofly |
|---|---|---|
| Pricing | Contact for pricing | Free |
| Primary Use Case | Enterprise legal AI platform | On-device proofreading for Chrome |
| Key Feature | AI Agents for end-to-end legal task automation | 100% local processing, no data sent off-device |
| Privacy | Enterprise security; cloud-based with integrations | Zero data transmission; fully offline after model download |
| Platform | Web + Mobile + Microsoft 365 embedding; multiple integrations | Chrome extension only (requires Chrome 141+) |
| Best For | Law firms, in-house legal teams | Privacy-conscious writers, students, Chrome users |
If you're a law firm or legal department needing an end-to-end AI platform for contract analysis, due diligence, and litigation support, Harvey is the obvious choice—though you'll need to contact for pricing. If you're an individual writer who values privacy and just wants a no-fuss, free grammar checker running locally on Chrome, Proofly is perfect. These tools serve completely different needs; pick based on your domain and privacy requirements.
Harvey is the agentic AI platform for legal work — research, document analysis, and contract review under enterprise governance.
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Proofly is a free Chrome extension that proofreads your writing on-device with Chrome's built-in Gemini Nano AI — your text never leaves your machine.
Visit WebsiteWho should pick which
- Law firm handling high-volume document reviewPick: Harvey
Harvey's Agents and Vault can automate due diligence and contract analysis, saving hours of manual work. Its integrations with legal DMS and enterprise tools support large-scale workflows.
- Privacy-conscious blogger writing in ChromePick: Proofly
Proofly runs 100% on-device with no data transmission, ideal for sensitive content. It's free and works offline, with no account needed.
- In-house legal team streamlining contract negotiationsPick: Harvey
Harvey's Contract Intelligence provides negotiation insights and its Shared Spaces enables collaboration across departments or with external counsel.
- Student needing offline proofreading for essaysPick: Proofly
Proofly works entirely in Chrome without internet after initial setup, perfect for offline writing. It's free and catches common errors.
- Professional service network collaborating across organizationsPick: Harvey
Harvey's Shared Spaces allow secure cross-organization collaboration, and its Command Center provides analytics and governance for such networks.
Frequently Asked Questions
Harvey vs Proofly: which should you choose?
If you're a law firm or legal department needing an end-to-end AI platform for contract analysis, due diligence, and litigation support, Harvey is the obvious choice—though you'll need to contact for pricing. If you're an individual writer who values privacy and just wants a no-fuss, free grammar checker running locally on Chrome, Proofly is perfect. These tools serve completely different needs; pick based on your domain and privacy requirements.
Does Harvey have a free trial?
Harvey's pricing is contact-based; there is no mention of a free trial in the provided data.
Can Proofly work on Firefox or Safari?
No, Proofly is exclusively a Chrome extension and requires Chrome 141+ with on-device AI capabilities.
What languages does Proofly support?
The provided data does not specify supported languages for Proofly.
Does Harvey offer a mobile app?
Yes, Harvey Mobile provides mobile web access for on-the-go legal work.
Is Proofly open-source?
Yes, Proofly's source code is open-source (version 0.6.0).
Can Harvey analyze documents in bulk?
Yes, its Vault feature enables secure document storage and bulk analysis.
Does Proofly offer style suggestions or rewrites?
No, Proofly focuses on spelling, grammar, punctuation, capitalization, and missing words. It does not provide style or tone suggestions.
What is Harvey's latest valuation?
According to recent news, Harvey AI is valued at $11 billion as of July 2026.
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Last reviewed: July 30, 2026