Grammarly AI
Grammarly · Writing · US · www.grammarly.com
services/grammarly-ai.yamlVendor data-handling terms
Grammarly publishes a separate page on product improvement and training controls, which describes per-plan opt-outs; that page is pending review.
“By using Grammarly, you’re giving us formal permission to provide writing suggestions to you and to use your writing to improve our products. / We never sell the content you upload to our products, provide it for advertising purposes, or allow third parties to use it to train their models.”
“Please note that if you save a document in the Grammarly Editor, we’ll store it until you delete the document or your Grammarly account. / Upon opting out of a feature, all data stored for that feature to personalize your Grammarly experience will be deleted.”
“Grammarly stores data on servers hosted by Amazon Web Services, an industry-leading infrastructure provider, in their US-based data centers. / For transfers to the US, we are certified under the EU-US Data Privacy Framework, the UK Extension to the EU-US DPF, and the Swiss-US Data Privacy Framework regarding the collection, use and retention of personal data from the EU, UK and Switzerland”
Domains and endpoints
observed means seen in Unseen deployments; vendor-documented means listed by the vendor. Vendors do not publish complete lists.
| Host | Role | Source |
|---|---|---|
| grammarly.com | app | observed |
Assessment
Reasoning: Everything a person types with the extension active passes to US servers, and the policy grants Grammarly use of that writing to improve its products. Third-party training is excluded and the DPF certification covers the transfer. The tool's reach is the issue: it reads whatever field it is enabled in, which in a browser includes internal systems. Business-plan training controls are documented on a separate page not yet verified here, so those plans are unrated.
Flags: GDPR Chapter V (US storage; DPF-certified) · Assessed 2026-09-16. The assessment is Unseen's; the terms above are the vendor's.
Changelog
- 2026-09-16Documented. Improvement, retention, and transfer terms verified against the Grammarly privacy policy.
- 2026-09-15Listed from the Unseen catalogue with observed domains.
Corrections
Pull request on GitHub, or the form below. Changes are reviewed and recorded in the changelog.