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DeepL

DeepL · Translation · DE · www.deepl.com

Last verified 2026-09-16
Entry services/deepl.yaml
Training on your data (default tier)
Free Translator and Write process submitted texts for a limited period to train and improve DeepL's networks; Pro and API Pro texts are not used to improve the services
Retention
Pro texts kept only temporarily for the translation, then deleted; free texts kept for a limited period for training
Data residency
German controller (DeepL SE, Cologne); processing on DeepL's own infrastructure, not on Microsoft or AWS servers for voice products

Vendor data-handling terms

Training on your data (default tier)
Free Translator and Write process submitted texts for a limited period to train and improve DeepL's networks; Pro and API Pro texts are not used to improve the services

The free terms also prohibit entering personal data of any kind; that is only permitted under a Pro subscription with a data processing agreement.

“We process the content you upload and their translations or improvements for a limited period of time to train and improve our neural networks and algorithms. / When using these services, your texts will not be used to improve the quality of our services.”
checked 2026-09-16
DeepL Privacy Policy, sections 3 and 4
Training on your data (business tiers)
Pro, API Pro and Write Pro texts are deleted after the translation is delivered and not used to improve the services
“After complete performance of the contractually agreed services all submitted texts or documents and their translations or improvements will be deleted.”
checked 2026-09-16
DeepL Privacy Policy, section 4
Retention
Pro texts kept only temporarily for the translation, then deleted; free texts kept for a limited period for training
“When using our services DeepL Translator Pro, DeepL API Pro and DeepL Write Pro to translate or improve texts, the texts or documents you submit will not be permanently stored and will only be kept temporarily to the extent necessary for the production and transmission of the translation or improvement.”
checked 2026-09-16
DeepL Privacy Policy, section 4
Data residency
German controller (DeepL SE, Cologne); processing on DeepL's own infrastructure, not on Microsoft or AWS servers for voice products

DeepL states that its data centres are in the EU on its security pages; the privacy policy itself names the German controller rather than a hosting region.

“The DeepL group is made up of different legal entities, which are: Germany: DeepL SE and DeepL AI GmbH of Maarweg 165, 50825 Cologne”
checked 2026-09-16
DeepL Privacy Policy, section 1

Domains and endpoints

observed means seen in Unseen deployments; vendor-documented means listed by the vendor. Vendors do not publish complete lists.

HostRoleSource
api-free.deepl.comappobserved
deepl.comappobserved

Assessment

Free Translator and Write: highPro, API Pro and Write Pro: low

Reasoning: The most common translation tool in European offices, and the clearest free-versus-paid split in the catalogue. Free use trains DeepL's models and forbids personal data; Pro deletes texts after delivery and does not train, under a German controller with a DPA available. The observed api-free.deepl.com host is the free API tier.

Flags: Free tier trains on submitted texts · Free tier prohibits personal data · api-free host indicates free-tier API use · Assessed 2026-09-16. The assessment is Unseen's; the terms above are the vendor's.

Changelog

  • 2026-09-16Documented. Free and Pro training, retention and controller terms verified against the DeepL privacy policy.
  • 2026-09-15Listed from the Unseen catalogue with observed domains.

Corrections

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