Grammarly — privacy & data policy

Provider: Grammarly. PromptPrivacy score: 75/100. Last verified November 01, 2026.

What happens to your data?

Grammarly processes your text and usage patterns to deliver real-time writing suggestions and edits. Your content is kept private, is never sold or used for third-party advertising, and can be used to improve models unless you disable training. Documents saved in the editor remain stored until you delete them.

Does it train on your data?

Trains on your content by default, with an opt-out. Grammarly analyzes text to generate suggestions and improve products, but users can stop their content from being used to train models by disabling 'Product Improvement and Training' in account settings.

Can you opt out?

Yes. You can opt out of allowing Grammarly to use your content for model training by switching off 'Product Improvement and Training' in your account settings.

Data retention

Saved documents are retained in the Grammarly Editor until you delete them or close your account. Personalization data collected for tailored assistance is deleted upon disabling that feature.

Encryption & security

Specific encryption protocols (such as TLS or AES) are not detailed in the text, but Grammarly emphasizes enterprise-grade certifications, regular third-party penetration testing, and routine cloud infrastructure reviews.

Is it safe for work?

Yes, provided users or administrators disable the model training toggle. Grammarly maintains annual security certifications, enforces strict internal access controls where employees cannot access user writing without approval, and commits to not selling user content.

Source policy: https://www.grammarly.com/trust