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A free trial is offered repeatedly across the site for the pro plans, including an API trial, so quality and limits can be tested before paying.
Learn moreDeepL
Translation and writing tools tuned for accuracy, built into the apps you already use
Beginner API
What is DeepL?
DeepL is a language AI platform for translating text, documents, speech and code-adjacent workflows across more than 100 languages, with glossaries, tone control, a writing assistant and an API. It suits teams that need consistent, accurate translation inside Word, Outlook, Chrome and their own systems.
DeepL is a translation and language platform built around a proprietary model trained by thousands of language experts. The core product translates typed text into more than 100 languages, and the same engine runs document translation, real time voice interpretation, a business writing assistant and a developer API. Anyone who works across languages, whether reviewing a supplier contract, answering a customer email or shipping a localized website, is the target user, and the tool is aimed at both individuals and organizations large enough to care about consistent terminology. In practice the workflow is unglamorous and fast. Typed text goes into a bilingual pane for side by side comparison, files get dragged onto the page and come back with layout and visual context preserved, and the paid tiers add Glossaries, Rules and Clarify so teams can lock down product names and narrow down ambiguous sentences. Voice translation handles both virtual meetings and in person conversations, producing output that aims to keep the speaker's own tone. DeepL Write sits alongside the translator for polishing business prose rather than converting between languages. The platform competes against general purpose assistants and free consumer translators. Its argument is narrower but sharper: specialized language AI instead of a jack of all trades, industry glossaries tailored to life sciences, manufacturing, legal, finance, government and retail, plus a developer API that lets teams embed the same engine in their own systems. Published customer stories from Sumitomo, Merck, Cybozu, Daiwa Securities and Hitachi IES describe shorter translation cycles and reduced outsourcing spend. The trade off is that DeepL is a language tool, not a general chatbot, and the features that make it useful for companies, such as glossaries and tone control, sit behind paid plans.
How do you use DeepL?
1Translate a passage in the browser
Open the translator, paste or type your source text and pick the target language. The two pane view updates as you type so you can compare source and output line by line.2Translate a document with formatting intact
Drop a file onto the document translation page or select one from your device. The returned file keeps its original layout so tables, headers and images stay where they were.3Install the app or extension for daily use
Add the Windows, macOS or Android app, or the Chrome or Firefox extension, so translation is available without switching tabs. Sign in on each device to sync your preferences.4Bring translation into Word, Outlook or PowerPoint
Install the Office add-ins to translate content inside the tools your team already writes in. This avoids copy and paste cycles and keeps formatting under control.5Set up the API for product workflows
Read the quick start guide, generate an authentication key and send your first request. The API is the route for localizing a website or automating translation at scale.6Start a paid plan to unlock pro features
Move to a paid tier when you need glossaries, Rules, Clarify or higher document limits. A free trial is available from the pricing page before you commit.
Pros and cons
Pros
- Strong reputation for translation quality, backed by a model trained with thousands of language expertsAI
- Document translation preserves original layout and visual context, which saves manual reformattingAI
- Glossaries, Rules and Clarify give teams control over terminology and ambiguous phrasingAI
- Wide reach: desktop and mobile apps, browser extensions, Office add-ins and a documented APIAI
- Free tier lets you evaluate quality on real text before committing to a planAI
Cons
- Glossary, tone and style features that companies actually need are locked to paid plansAI
- It is a language tool, not a general assistant, so research and coding tasks belong elsewhereAI
- Quality still depends on language pair and domain, so niche or low resource languages need human reviewAI
- Developers must keep an eye on character and document limits on API usage tiersAI
- Voice translation is aimed at meetings and conversations, not at transcribing long recordingsAI
How much does DeepL cost?
Pricing
The homepage promotes a free trial and paid plans without listing prices. Pro features such as Glossaries, Rules and Clarify, plus bulk and enterprise document workflows, are presented as paid capabilities, and a separate API sign up offers a free entry point.
Learn moreSupport
A developer documentation portal and community space cover API questions, while sales enquiries run through a contact form. Customer stories illustrate deployments rather than serving as a help channel.
Learn moreIntegrations
Desktop and mobile apps, Chrome and Firefox extensions, Google Workspace, and Word, PowerPoint and Outlook add-ins, plus a documented API and partner marketplace for further connections.
Learn moreFeatures
Text translation into more than 100 languages, document translation that preserves layout and visual context, real time voice translation for meetings and conversations, a writing assistant with style and tone adaptation, glossaries and Rules for terminology control, and an API for embedding translation in products and websites.
Learn moreFrequently asked questions about DeepL
How much does DeepL cost?
The homepage promotes a free trial and paid plans without listing prices. Pro features such as Glossaries, Rules and Clarify, plus bulk and enterprise document workflows, are presented as paid capabilities, and a separate API sign up offers a free entry point.Does DeepL offer a free trial?
A free trial is offered repeatedly across the site for the pro plans, including an API trial, so quality and limits can be tested before paying.Does DeepL have an API?
Yes, DeepL offers an API.How do you use DeepL?
The walkthrough on this page covers 6 steps: 1. Translate a passage in the browser 2. Translate a document with formatting intact 3. Install the app or extension for daily use 4. Bring translation into Word, Outlook or PowerPoint 5. Set up the API for product workflows 6. Start a paid plan to unlock pro features.What platforms does DeepL support?
DeepL is available on Web App, iOS, Android, MacOS, Windows and Browser extension.What does DeepL integrate with?
Desktop and mobile apps, Chrome and Firefox extensions, Google Workspace, and Word, PowerPoint and Outlook add-ins, plus a documented API and partner marketplace for further connections.
Status
StatusActive
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Added10/21/2026
Platforms
Web AppiOSAndroidMacOSWindowsBrowser extension
Pricing
FreemiumFree TrialSubscription
