LanguageTool
LanguageTooler · Writing · DE · languagetool.org
services/languagetool.yamlVendor data-handling terms
LanguageTool is now owned by Learneo, whose group policy permits training on collected data for other products; the LanguageTool-specific carve-out is quoted.
“LanguageTool: Learneo does not use inputs from any LanguageTool user (Individual or Team Plan) to train its language algorithms or models.”
The group policy sets no retention period for text submitted for checking.
“Learneo has offices located in the United States, India, The Netherlands, Germany, and Canada and may continue to grow in other countries.”
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 Vendors do not publish complete lists.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 |
|---|---|---|
| api.languagetool.org | api | observed |
| languagetool.org | app | observed |
| languagetoolplus.com | app | observed |
Assessment
Reasoning: A grammar checker with a German origin, now under a US group. The LanguageTool carve-out from training is explicit, which matters because the extension reads every field it is enabled in. Retention of checked text and the exact hosting location are not stated in the group policy.
Flags: Browser-extension page access · Retention of checked text not stated · Assessed 2026-09-16. The assessment is Unseen's; the terms above are the vendor's.
Changelog
- 2026-09-16Documented. Training carve-out and office locations verified against the Learneo 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.