
What is Proofly
Proofly is a free, open-source Chrome extension that delivers industry-class proofreading by leveraging Chrome's built-in on-device AI, ensuring all text processing occurs locally without any data transmission to the cloud. It provides real-time grammar, spelling, and punctuation checks with a lightweight, non-invasive interface, prioritizing user privacy and offline functionality.
Key Features
Use Cases
- Writers and content creators needing privacy for sensitive drafts or confidential projects
- Students and academics who require offline proofreading for research papers or assignments
- Professionals in legal, healthcare, or business fields seeking secure grammar assistance for emails and documents
- Remote workers or travelers who need reliable proofreading without internet access
Why do startups need this tool?
Startups need Proofly because it provides a cost-effective, privacy-first tool for enhancing written communication without relying on cloud-based services that may pose data security risks. Its on-device operation reduces internet dependency and protects sensitive business information, such as emails or strategic documents, ensuring compliance and efficiency in fast-paced environments.




