LanguageTool
LanguageTool sells a multilingual grammar, spelling and style checker as browser, desktop and office add-ons and an API.
languagetool.org ↗ · LanguageTooler GmbH
Subprocessors (9)
Checked Oct 25, 2026 · source disclosure ↗
| vendor | purpose | evidence |
|---|---|---|
| | Cloud service and server for hosting the websites and servers running the text checking software | “Telekom Germany GmbH Cloud service and server for hosting the websites and servers running the text checking software.” |
| | Cloud service and server for hosting the websites and servers running the text checking software | “Hetzner Online GmbH Industriestr. 25, 91710 Gunzenhausen Cloud service and server for hosting” |
| | Cloud database for access data and usage logs; storage of texts written in the online editor and desktop app | “Amazon Web Services EMEA SARL Germany branch: Marcel-Breuer- Str. 12, 80807 Munich” |
| | Country-level user location and DDoS-prevention proxy for languagetool.org | “Cloudflare, Inc. 101 Townsend St. San Francisco, CA 94107 USA” |
| | Generation of alternative wordings with the rephrasing feature | “Open AI LLC 548 Market Street, PMB 97273, San Francisco” |
| | Generation of alternative wordings with the rephrasing feature | “Aleph Alpha GmbH Grenzhöfer Weg 36, 69123 Heidelberg” |
| Google Cloud Platform Ireland | Cloud service and server for hosting the websites and servers running the text checking software | “Google Cloud Platform Google Building Gordon House, 4 Barrow St” |
| | Local Learneo affiliate entity responsible for some data processing to provide the LanguageTool service | “LanguageTooler GmbH Boschstraße 23a 22761 Hamburg (Germany)” |
| | Data analytics and performance measurement | “Amplitude, Inc. 201 Third Street, Suite 200 San Francisco, CA 94103” |
- Telekom DeutschlandGermany
Cloud service and server for hosting the websites and servers running the text checking software
“Telekom Germany GmbH Cloud service and server for hosting the websites and servers running the text checking software.”
- HetznerGermany
Cloud service and server for hosting the websites and servers running the text checking software
“Hetzner Online GmbH Industriestr. 25, 91710 Gunzenhausen Cloud service and server for hosting”
- Amazon Web ServicesGermany
Cloud database for access data and usage logs; storage of texts written in the online editor and desktop app
“Amazon Web Services EMEA SARL Germany branch: Marcel-Breuer- Str. 12, 80807 Munich”
- CloudflareUnited States
Country-level user location and DDoS-prevention proxy for languagetool.org
“Cloudflare, Inc. 101 Townsend St. San Francisco, CA 94107 USA”
- OpenAIUnited States
Generation of alternative wordings with the rephrasing feature
“Open AI LLC 548 Market Street, PMB 97273, San Francisco”
- Aleph AlphaGermany
Generation of alternative wordings with the rephrasing feature
“Aleph Alpha GmbH Grenzhöfer Weg 36, 69123 Heidelberg”
- Google Cloud PlatformIreland
Cloud service and server for hosting the websites and servers running the text checking software
“Google Cloud Platform Google Building Gordon House, 4 Barrow St”
-
Local Learneo affiliate entity responsible for some data processing to provide the LanguageTool service
“LanguageTooler GmbH Boschstraße 23a 22761 Hamburg (Germany)”
- AmplitudeUnited States
Data analytics and performance measurement
“Amplitude, Inc. 201 Third Street, Suite 200 San Francisco, CA 94103”