Does Proofly require an internet connection to work?

Proofly works completely offline after the initial download of Chrome's built-in AI models, as all processing is done locally on your device.

Is Proofly really free to use?

Yes, Proofly is completely free and open-source, with no hidden fees, subscriptions, or account requirements.

What are the system requirements for Proofly?

Proofly requires Chrome version 141 or higher and a device capable of running Chrome's built-in AI models for optimal performance.

How does Proofly ensure my privacy?

Proofly processes all text locally on your device, so no keystrokes or data are sent to the cloud, ensuring complete privacy and security.

Proofly

Private AI proofreading that runs 100% on your device

Development

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Listing details

HiCyou directory record

Listed

Listed website: chromewebstore.google.com
Published in directory: Dec 7, 2025
Last record update: Dec 7, 2025

Listing information

Overview
5 key features
4 use cases

This page describes HiCyou's directory record. It is not a security, ownership, or product-quality certification.

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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

Runs 100% locally on your device for total privacy

No data transmission to the cloud or external servers

Works offline after initial AI model download

Free, open-source with no accounts or tracking

Lightweight and non-invasive UI that respects page focus

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.