DeepL vs Google Translate: AI翻译工具对比

Overview

DeepL and Google Translate are the two most popular machine translation services in 2026. DeepL, developed by the German AI company DeepL SE, is widely regarded as producing more natural and nuanced translations, particularly for European languages. Google Translate, backed by Google's massive infrastructure, covers far more languages and integrates seamlessly into the Google ecosystem. This comparison helps you determine which translation tool fits your needs.

Feature Comparison

Translation Quality

DeepL is renowned for superior translation quality:

• More natural, fluent output that reads like human writing
• Better handling of context, idioms, and nuance
• Excellent preservation of tone and style
• Particularly strong for European language pairs
• Fewer literal translations and awkward phrasing

Google Translate provides reliable broad translations:

• Solid quality across a massive range of languages
• Good for getting the gist of any text
• Improved significantly with neural machine translation
• Better for less common language pairs
• Handles technical content adequately

Winner: DeepL for translation quality, especially in European languages.

Language Coverage

DeepL supports a focused set of languages:

• 33+ languages supported
• Focus on high-quality output for supported languages
• Strong coverage of European and major Asian languages
• Actively adding new languages over time

Google Translate offers unmatched coverage:

• 130+ languages supported
• Includes rare and low-resource languages
• Community-contributed translations
• Support for regional dialects and variants

Winner: Google Translate for language variety and coverage.

Document & File Translation

DeepL excels at document translation:

• Translate full documents (PDF, Word, PowerPoint)
• Preserves original formatting and layout
• High-quality output suitable for professional use
• Batch translation for multiple files

Google Translate handles documents adequately:

• Document upload and translation
• Basic formatting preservation
• Integration with Google Docs
• Less consistent with complex layouts

Winner: DeepL for professional document translation with formatting.

Customization & Glossary

DeepL offers powerful customization:

• Glossary feature to enforce specific terminology
• Formal/informal tone selection
• Custom translation memories for consistency
• Write feature for monolingual text improvement
• Context-aware alternatives for key phrases

Google Translate provides limited customization:

• AutoML Translation for enterprise custom models
• Phrase book for saved translations
• No inline tone or formality controls
• API-level customization for enterprise users

Winner: DeepL for user-facing customization and terminology control.

Integration & Accessibility

Google Translate is everywhere:

• Built into Chrome browser, Android, and Google apps
• Camera translation (point and translate)
• Conversation mode for real-time spoken translation
• Google Lens integration for image translation
• Offline support for many languages
• Free API for light usage

DeepL offers focused integrations:

• Desktop apps for Windows and Mac
• Browser extensions for Chrome, Firefox, Edge
• Mobile apps for iOS and Android
• CAT tool integration (SDL Trados, memoQ)
• Microsoft Office and Google Workspace add-ons

Winner: Google Translate for ubiquity and mobile features.

Pricing Comparison

DeepL Pricing

Google Translate Pricing

Value Winner: Google Translate is free for personal use; DeepL offers better value for professional quality.

Best Use Cases

Choose DeepL if you need:

• Professional translations — business documents, marketing, legal
• European language pairs — highest quality for EU languages
• Document translation — preserve formatting in PDFs and Office files
• Consistent terminology — glossaries for brand and industry terms
• Writing improvement — DeepL Write for polishing text

Choose Google Translate if you need:

• Maximum language coverage — 130+ languages including rare ones
• On-the-go translation — camera, conversation, and offline mode
• Free daily use — unlimited web translations at no cost
• Ecosystem integration — Chrome, Android, Google Docs, Gmail
• Quick understanding — getting the gist of any foreign text

FAQ

Is DeepL really better than Google Translate?

For supported languages, particularly European language pairs, DeepL consistently produces more natural and fluent translations. Blind tests frequently show users preferring DeepL output. However, Google Translate covers far more languages and is better for less common language pairs where DeepL isn't available.

Can I use DeepL for free?

Yes, DeepL offers a free tier with 500,000 characters per month and 3 document translations. The free web interface allows unlimited short text translations. For higher volumes or API access, paid plans start at $9/month.

Which is better for business translation?

DeepL is generally preferred for business use due to its higher translation quality, glossary features for terminology consistency, and document translation with formatting preservation. Many enterprises use DeepL for customer-facing content and Google Translate for internal quick translations.

Does Google Translate work offline?

Yes, Google Translate offers offline translation for many languages on its mobile app. You need to download language packs in advance. DeepL requires an internet connection for all translations.

Are machine translations accurate enough for legal documents?

Neither tool should be used as the sole translation for legal documents. Both can produce excellent drafts, but legal translations require professional human review. DeepL's glossary feature helps maintain consistent legal terminology, making it a better starting point for professional translators.