The best AI translator depends on what you're translating. DeepL suits natural-sounding business documents, Google Translate suits the widest range of languages and quick translations on the go, Microsoft Translator suits Microsoft 365 users and live conversations, ChatGPT suits translations you want to adapt in tone, Reverso suits checking phrases in context, Smartcat and Lokalise suit teams translating websites and apps, and Papago suits Korean and other Asian languages.
Translation used to be slow and only for big companies. Now AI lets a small business reply to a customer in their own language, translate a product page or understand a supplier's email in seconds. That opens up new customers without hiring a translator for every message.
The tools below are well known and widely used. Some are quick translators for everyday use, others are platforms for translating whole websites and apps. I've focused on what each one is known for, so shortlist two and translate the same real paragraph, such as your About page, then ask a native speaker which reads better.
What should you look for in an AI translator?
- Accuracy and tone. Good translation sounds natural, not word-for-word, and keeps your tone.
- Languages. Check that the languages your customers speak are covered well, not just listed.
- Documents. Translating whole files while keeping the layout saves a lot of reformatting.
- Glossaries. A glossary keeps product names and key terms the same every time.
- Integrations. Look for tools that work in your browser, email, documents or website.
- Privacy. For contracts and client data, check how the tool stores and uses your text.
AI translators compared
| Tool | Best for | Stand-out feature |
|---|---|---|
| DeepL | Natural business translations | Fluent, natural-sounding output |
| Google Translate | The widest range of languages | Camera, voice and conversation modes |
| Microsoft Translator | Microsoft 365 users | Built into Office and Teams |
| ChatGPT | Adapting tone and context | Translation you can steer |
| Reverso | Checking phrases in context | Real-world example sentences |
| Smartcat | Teams translating content | AI translation with human review |
| Lokalise | Websites and apps | AI localisation for software |
| Papago | Korean and Asian languages | Strong Korean translations |
Plans and features change often, so check each vendor's current plans before you commit.
The best AI translators for business
1. DeepL
DeepL is known for translations that read naturally, especially between European languages. It translates text and whole documents, and DeepL Write helps polish writing in the same language.
Who it suits: businesses translating emails, documents and marketing copy where tone matters.
What stands out: the quality of the writing. Translations often need less editing than word-for-word tools.
Watch out for: it covers fewer languages than Google Translate, so check yours is included.
2. Google Translate
Google Translate covers a huge range of languages and works on the web and on your phone. You can translate text, websites, documents, conversations and signs through your camera.
Who it suits: anyone who needs quick translations in many languages, at a desk or on the move.
What stands out: its reach and convenience, from typed text to live conversations.
Watch out for: results vary between languages, so get important copy checked by a native speaker.
3. Microsoft Translator
Microsoft Translator powers translation across Word, Outlook, PowerPoint, Edge and Teams. Its conversation feature lets several people talk in different languages at once.
Who it suits: businesses that already work in Microsoft 365.
What stands out: the integration. You can translate a document or email without leaving the app you're in.
Watch out for: outside Microsoft's apps, other tools may be more convenient.
4. ChatGPT
ChatGPT can translate and adapt at the same time. You can ask it to make a translation more formal, more friendly or suitable for a particular country, and explain the choices it made.
Who it suits: business owners who want translations that sound like their brand.
What stands out: control. You can give it context about your audience and refine the result in conversation.
Watch out for: it can sound confident when it's wrong, so check important translations.
5. Reverso
Reverso combines translation with Reverso Context, which shows how a word or phrase is used in real bilingual examples. It also offers dictionaries and grammar tools.
Who it suits: people writing in a second language who want to check a phrase sounds right.
What stands out: the examples, which show how real people use a phrase, not just its dictionary meaning.
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Watch out for: it's at its best for words and phrases rather than long documents.
6. Smartcat
Smartcat is a translation platform that combines AI translation with tools for reviewing and editing, and it can bring in professional linguists when you need them.
Who it suits: growing businesses that translate a lot of content and want to keep it consistent.
What stands out: the workflow, which mixes AI speed with human checks on important content.
Watch out for: it's a platform for regular translation work, so it's more than you need for the odd email.
7. Lokalise
Lokalise is a localisation platform for software, apps and websites. It manages translations for every language in one place and uses AI to translate and check content.
Who it suits: software and app businesses launching in new markets.
What stands out: the way it fits into product and development workflows.
Watch out for: it's built for software teams, so it isn't a quick translator for everyday messages.
8. Papago
Papago is a translator from Naver, the South Korean tech company. It's known for strong translations between Korean, English, Japanese and Chinese, with text, voice and image modes.
Who it suits: businesses working with customers or suppliers in Korea and other parts of Asia.
What stands out: its quality in Korean and other Asian languages, where general tools can struggle.
Watch out for: it covers a smaller set of languages than Google Translate.
How to choose the right AI translator
Start with what you translate most. Emails and documents in European languages point to DeepL. Lots of different languages, or translating on the go, point to Google Translate. Microsoft 365 users should try Microsoft Translator first. Translating a whole website or app is a bigger job, and that's where Smartcat and Lokalise earn their place.
Then decide where a human needs to step in. AI is fine for understanding a supplier's email or replying to a customer. For your website, contracts, ads and anything legal or medical, have a native speaker check the result. A translation that sounds clumsy can lose a customer just as fast as no translation at all.
Before you translate your website, read about the business translation mistakes that lose customers. If you need human translators, see my roundup of online translation services for small businesses, and for video, read how AI video translation tools help you reach global audiences.
Building a tool in this space? Here's how tools get considered for my roundups.
Frequently asked questions
What is the best AI translator?
DeepL is known for natural-sounding translations, Google Translate covers the most languages, Microsoft Translator suits Microsoft 365 users and ChatGPT suits translations you want to adapt in tone.
Is DeepL better than Google Translate?
DeepL often reads more naturally in the languages it covers, while Google Translate supports far more languages and more ways to translate, such as camera and conversation modes.
Can I use AI to translate my website?
Yes, but have a native speaker review key pages. Platforms such as Smartcat and Lokalise help manage website and app translation with AI and human review.
Is AI translation accurate enough for business?
For everyday emails and understanding documents, usually yes. For contracts, legal text and marketing copy, use AI as a first draft and have a human check it.
