Is my data used to train DeepL's AI?

No. For Pro subscribers, your data is used only to provide the service and is deleted afterward. It is never used to train DeepL's models.

Can I change my plan after purchase?

Yes. Upgrades are immediate with prorated credits. Downgrades take effect at the end of your current billing period.

What payment methods are accepted?

We accept credit/debit cards (Visa, Mastercard, Amex, etc.), SEPA Direct Debit (EUR only), and bank transfer (invoice) for eligible subscriptions.

How is the API authentication structured?

You use an API key in the 'Authorization' header with the format 'DeepL-Auth-Key [yourKey]'. Use the free endpoint (api-free.deepl.com) for free plans.

Can I set usage limits to control costs?

Yes. The API provides subscription-level cost control features, allowing you to set hard limits on character usage to prevent unexpected charges.

What is the MCP server and how do I use it?

The Model Context Protocol (MCP) server lets you integrate DeepL translation directly into LLM applications like ChatGPT, Claude, and Copilot. It acts as a translation tool for the AI agent.

Directory/Productivity/AI Assistants/DeepL

DeepL

DeepL is a leading Language AI platform offering high-quality machine translation, text improvement, and real-time voice translation. It provides a web translator, desktop and mobile apps, browser extensions, and a robust API for developers to build multilingual applications. Key capabilities include translating text and entire documents (PDF, Word, PowerPoint, Excel) with high accuracy, using AI to enhance writing style and grammar with DeepL Write, and enabling real-time multilingual conversations via DeepL Voice. The platform emphasizes data security, with Pro subscriptions ensuring data is not used for AI training.

Productivity

Visit website

Added on

Sep 22, 2026

AI TranslationDocument File SupportReal-Time VoiceGrammar/Writing ToolREST APIGlossary CustomizationEnterprise Security

Product information

Everything worth knowing about DeepL

The complete picture — from everyday features to the technical detail builders and IT folks dig for.

Core features

What it actually does

AI-Powered Translation

Secure, efficient, and accurate translation of text and documents across languages.

DeepL Write

Enhance writing with AI-powered grammar, spelling, punctuation, and style improvements.

Real-Time Voice Translation

Converse across languages in real time with DeepL Voice for meetings and conversations.

Document Translation

Translate entire PDF, Word, PowerPoint, and Excel files while preserving formatting.

Customization Hub

Create glossaries and style rules to tailor translations to your specific terminology and brand voice.

Technical capabilities

REST API

Programmatic access for text and document translation via a RESTful endpoint with official client libraries for Python, Node.js, Java, etc.

Enterprise Security

ISO 27001 and SOC 2 Type II certified infrastructure; Pro data is never used for model training.

Must watch videos

How To Improve Copy With DeepL Write (Full Guide 2025)

3:01

Tutorial3:01

How To Improve Copy With DeepL Write (Full Guide 2025)

How To Improve Copy With DeepL Write (Full Guide 2025) In this video we discuss DeepL Write, improve writing, copywriting tools, AI writing assistant, grammar checker, style editor, better copy, writing aid, content creation, refine text, professional writing, AI editor, writing skills, text enhancement, copy editor

How To Use DeepL Write For Grammar Checking (Full Guide)

2:11

Tutorial2:11

How To Use DeepL Write For Grammar Checking (Full Guide)

How To Use DeepL Write For Grammar Checking (Full Guide) DeepL Write, DeepL Write grammar check, how to use DeepL Write, DeepL tutorial, AI grammar checker, writing assistant tools, DeepL guide, improve grammar AI, paraphrasing tool DeepL, AI writing tools, grammar correction tool, DeepL features, writing improvement AI, proofreading AI tool, DeepL for beginners, text correction AI, sentence rewriter, productivity writing tools, DeepL workflow, AI editing assistant

DeepL Write vs Grammarly Review – Still Good?

2:36

Review2:36

DeepL Write vs Grammarly Review – Still Good?

This video is about: ▶DeepL Write vs Grammarly Review – Still Good? Links to other usefull products: Shopify - https://shopify.pxf.io/y2dy6b VPN by SurfShark - https://surfshark.sjv.io/Y96LVr ESim by MayaMobile - https://maya.net/?pid=4Eah66ouwtK3 Stock Vids&Photos by Envato - https://1.envato.market/MAXkqP Hope it was helpfull. Subscribe and Like!

Who uses it

Real use cases, no hype

E-commerce Product Localization

Translate product titles, descriptions, and metadata at scale for global storefronts.

Software & Game Localization

Localize UI strings, documentation, and in-game text for international releases.

Customer Support Multilingualism

Enable support teams to communicate instantly with customers worldwide.

Marketing Campaign Localization

Adapt ad copy, emails, and landing pages to resonate in different markets.

Legal & Contract Translation

Translate sensitive documents with high accuracy and guaranteed data confidentiality.

Internal Corporate Communication

Break language barriers in multinational teams for emails, docs, and meetings.

Developer API Integration

Build real-time translation features directly into your own applications or workflows.

What's great

Industry-leading translation quality, often more natural than competitors.
Excellent document translation that preserves original formatting (PDF, Word, PPT, Excel).
Strong data privacy and security (ISO 27001, SOC 2 Type II, no data training).
Comprehensive suite: Text, Voice, Write, and file translation in one platform.

Technical strengths

Robust, well-documented REST API with official client libraries for 7+ languages.
Deep integration with AI agents and LLMs via MCP server for seamless translation in apps.
Customization Hub allows glossaries and style rules for domain-specific terminology.

Where it falls short

Character-based pricing can become expensive for high-volume translation workloads.
Free tier is very limited (500k chars/month for API, 300k for pro account).
Support for some languages or niche dialects may be less comprehensive.
Enterprise and team features require paid plans; no self-hosted option.

Technical limitations

API rate limits and usage caps require careful monitoring to avoid overages.
Advanced customization (glossaries, style rules) is a paid feature.
No official SDK for some newer or less common programming languages.

For technical folks

The deep-dive specs

FAQ

Includes technical Q&A

The free trial gives you full access to Pro features for 30 days. You won't be charged until the trial ends, and you can cancel anytime. It's available for Individual and Team plans, but not if you've had a trial before.