DeepL Write is an AI writing assistant built by DeepL, a German company based in Cologne, that improves grammar, phrasing, style, and tone across multiple languages. It runs on a freemium model with a genuine free tier available to everyone; the paid DeepL Write Pro tier adds business features and is sold in every country where DeepL Pro is available, but we don't have a publicly stated starting price for it in our data — check DeepL's own pricing page for the current figure.
Who builds it
DeepL Write is developed by DeepL, the Cologne-based company also known for its DeepL Translator. DeepL Write shares that European engineering base and, per DeepL's own privacy policy, is processed and stored on DeepL's infrastructure within the EEA.
What it does
DeepL Write rewrites and improves text you give it — fixing grammar, adjusting phrasing, and shifting style or tone — rather than generating new content from a blank prompt. It offers a range of tone options, including Friendly, Enthusiastic, and Diplomatic among others, and purpose-built writing styles optimized for business, academic, or casual writing, across multiple languages. A Write API is available for developers who want to call the same rephrasing engine, specifically the /write/rephrase endpoint, from their own applications.
Core features
- Freemium pricing with a genuine free tier; paid DeepL Write Pro tier adds business features (starting price not publicly stated in our data)
- Available in 10 output languages, including English (American and British), French, German, Italian, Japanese, Korean, Chinese, Portuguese, and Spanish
- Adjustable tone options (Friendly, Enthusiastic, Diplomatic, and more) and purpose-built styles for Business, Academic, and Casual writing
- Write API with a dedicated /write/rephrase endpoint for developers
- Team management features: centralized app management, domain-based provisioning, SSO, and multifactor authentication
- ISO 27001 and SOC 2 Type II certification, alongside GDPR and HIPAA alignment
- Data hosted on DeepL's own infrastructure within the EEA (European Economic Area)
Who it's for
DeepL Write suits anyone who already has a draft and wants it improved — non-native English writers polishing business emails, teams that need consistent tone across many writers, or developers who want rephrasing built into their own product through the API — rather than someone looking for open-ended content generation. Its EEA-based hosting and DeepL's European engineering roots make it a natural fit for organizations with EU data-residency preferences. Teams that need SSO, provisioning, and centralized app management move to DeepL Write Pro, though we don't have its exact starting price in our data.
Data and compliance
DeepL states that it may store personal data on DeepL servers located within the EEA, and that translation and writing processing for DeepL Pro and DeepL Write is handled exclusively on DeepL's own infrastructure inside the EEA rather than third-party clouds outside Europe. DeepL has completed an independent SOC 2 Type II audit and states alignment with ISO 27001, GDPR, and HIPAA standards. Anyone with strict compliance requirements should confirm current certifications and Pro pricing directly on DeepL's own pages.