Home / Professions / Translation & localisation
Best AI for translation and localisation
Translation agencies, freelance translators and in-house language teams are the field where AI has changed day-to-day work the fastest. Machine translation produces the first draft, and the translator does post-editing, terminology control and cultural adaptation. The work shifts from typing to reviewing, and the gains lie in translation memories, term lists and tight workflows rather than in loose prompts.
Professional tool with the strongest GDPR profile
AmberScriptGDPR: Strong
AmberScriptGDPR: Strong- Provider based in the Netherlands
- Data in the EU according to the provider
- Publishes certification/GDPR safeguards
General model: the default choice
ClaudeGDPR: Strong
ClaudeGDPR: Strong- Editorial score 9.0 of 10
- Elo 1506
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Watch out in this field
Client source documents often contain personal data or trade secrets: never use the free consumer version of a translation tool for client material. Require a data processing agreement, check that your texts are deleted after translation and not used for training, and choose EU hosting where possible. Many translation contracts and NDAs with end clients prohibit passing texts to third parties without consent, so document which MT engine you use. And stay responsible for the content: AI translations read fluently but can reverse figures, negations and legal nuances.
All 31 options
Professional tools with the strongest published GDPR safeguards first, then general assistants by suitability.
31options, 19 field-specific
19free to try
14professional tools from NL or EU
14GDPR strong or good
Strong · 3Good · 7Limited · 8Unknown · 1
#SolutionQualityQuality from blind duels on LMArena: users choose between two anonymous answers. A difference of about 20 points is noticeable, a few points is noise. How we measurePriceGDPROur summary of what the provider itself publishes about your data. For a professional tool: whether the data is held in the EU, whether there is a certification or GDPR guarantee, and whether the provider is based in the Netherlands or the EU. For a general model: EU hosting, no training on your data and self-hosting. From Strong to Unknown; Caution only applies to a model with a documented problem. How we measure
1AmberScript professional toolAmberScript (Amsterdam, Netherlands) · NetherlandsAI transcription and subtitling with strong Dutch language support for journalists, media and researchers.own modelfrom €10 per hour (pay-as-you-go)…Strong2
Phrase Localization Platform professional toolPhrase GmbH (Hamburg, Germany) / Phrase a.s. (Prague, Czechia) · EU · free to tryTranslation management platform (evolved from Memsource) with a CAT editor, translation memories, term bases and automatic engine selection per language pair. Strong in software localisation: strings from your repository come in automatically and translations go back automatically. Separate plans for freelancers, in-house teams and translation agencies.on 
Freelancer $27/moStrong3
Crowdin professional toolCrowdin OÜ (Estonia, Europe) · EU · free to tryLocalisation platform with a generous free plan, popular with software projects, open source and non-profits. Texts come in automatically from your repository, translators (in-house team, community or agency) work online and translations flow back into the code. You connect AI translation and proofreading to your own model provider, so you keep control over where texts go.on free planStrong4
DeepL Pro professional toolDeepL SE (Cologne, Germany) · EU · free to tryTranslation engine that often translates European language pairs more naturally and with better context awareness than free alternatives. As well as plain text, you can translate entire Word, PowerPoint and PDF files while preserving formatting; with a glossary you can enforce your own terminology. DeepL Write helps with rewriting and tone. There is an API so you can build translation into your own system or CAT tool.own modelfree version with limitsGood5
memoQ translator pro professional toolmemoQ (Budapest, Hungary, Europe) · EU · free to tryClassic translation environment (CAT tool) for professional translators who want to stay in control. Translation memory, term bases and LiveDocs reuse earlier work; the Muse feature suggests the next words while you type, based on your own translations. Supports a hundred languages and virtually every file format, including client packages.own model€ 44 per licence per month or €…Good6
Weglot professional toolWeglot SAS (Paris, France) · EU · free to tryMakes an existing website multilingual in a few steps: you add a script or plug-in, Weglot detects all text, translates it automatically and serves it on its own language URLs that search engines index. You then refine the translations manually or through a translation agency. Works with almost any CMS, including WordPress, Shopify and Webflow.on free up to 2,000 wordsGood7STSYSTRAN Translate professional toolSYSTRAN by ChapsVision (Paris, France) · EUFrench translation technology that can also run on your own servers, relevant for governments, law firms and defence-related organisations that must not send confidential documents to a cloud. Translates fifty-plus languages and thirty-plus file formats, with the option to train models on your own field-specific terminology.own modelsubscriptions (Translate PRO, Ente…Good8
Lara (Translated) professional toolTranslated (Rome, Italy, Europe) · EU · free to tryAI translator that explains why it makes a given choice and takes context from the entire document into account. Translates text into over 200 languages, documents in more than 60 formats while preserving layout, and can also interpret images, audio and live conversations. Built by Translated, a translation agency that used its own translation memories as a foundation.own modelfree up to 60,000 characters per monthGood9
Redokun professional toolRedokun Srls (Montebelluna, Italy, Europe) · EU · free to tryTranslation platform focused on formatted documents: you upload an InDesign, Word or PowerPoint file and receive the same file back in another language, with the formatting intact. Translators work in a web editor, without needing the original software. Practical for marketing and documentation teams who publish brochures, catalogues and manuals in multiple languages.own modelProject Pass € 295 one-off (50.0…Good10
Localazy professional toolLocalazy s.r.o. (Brno, CZ) · EU · free to tryCzech translation management platform for localising software, apps and websites, with its own AI translation feature that takes glossaries, context and style guides into account. You can also connect DeepL, Google Translate or OpenAI and bring in professional translators.own modelFree free (up to 200 source keys)Good11
LanguageWire professional toolLanguageWire A/S (Copenhagen, Denmark) · EUEuropean language platform that combines translation management, machine translation and a network of professional translators in one environment. You send content from your CMS or PIM to the platform, AI produces the first draft and a professional translator validates it. For organisations that publish in many languages on a regular basis and want one workflow with an audit trail instead of loose emails with Word files.own modelon request (quote per project…Limited12
XTM Cloud professional toolXTM International Ltd (Beaconsfield, United Kingdom)Translation management system for organisations that manage large volumes of content in many languages. Projects start from templates, translation memory and terminology are applied automatically, and a quality score determines which files still need human review. Supports eighty-plus file formats while preserving structure, including XML and InDesign.own modelon request (price tailored to…Limited13
Lokalise professional toolSIA Lokalise (Riga, Latvia, Europe) · EU · free to tryLocalisation platform mainly used to keep apps, websites and product texts multilingual. Developers push text from the code, translators work in the web editor with context and screenshots, and AI delivers the first draft while enforcing your own glossary. Strong in workflows where every release produces new strings.own modelExplorer $149 per user/month, Growth $379…Limited14
Supertext professional toolSupertext AG (Zurich, CH) · free to trySwiss AI translator with its own translation LLM for 28 languages, including Dutch, with optional review by professional translators from CHF 5.70. You translate text and editable files in the browser, via Office add-ins or through the API.own modelFree freeLimited15
Taia professional toolTaia Translations Ltd (London, UK) · free to tryTranslation platform that combines AI translation of documents, a CAT editor for teams and professional translators, for 204 languages and 65+ file formats. You choose an AI level per project (Standard, Advanced or Premium), charged in credits per word.on Free free (5,000 credits/month)Limited16DDubformer professional toolDubformer B.V., Amsterdam (NL) · NetherlandsAI dubbing for films, series and videos in 140+ languages, with human quality checks by native speakers and voice management per project.own modelpilot project $400Limited17HSHappy Scribe professional toolHappy Scribe Limited, Dublin (IE) · EU · free to tryTranscription, subtitling and translation of video and audio in 150+ languages, with a subtitle editor, export to SRT/VTT and optional human correction.on 
Free €0 (one-off 10 min)Limited18FFlawless professional toolFlawless Holdings Limited, London (GB) and Flawless AI Inc. (US)AI for feature films and series: adjust dialogue and performances after filming (DeepEditor) and dubbing with matching lip movements in other languages (TrueSync).own modelon requestLimited19
Trados Studio professional toolRWS / Trados (United Kingdom) · free to tryThe most widely used translation environment in the sector; many clients deliver their packages in Trados format as standard. Combines translation memory, terminology management (MultiTerm) and machine translation in one editor, with AI assistance for pre-translation and rewriting. There is a desktop version for freelancers and a cloud variant (Trados Team/Enterprise) for agencies.own modelsubscription or perpetual licence…Unknown20Claude generalAnthropicFamily of language models from Anthropic that excels at long documents, careful reasoning, coding and reliable, safe output.1506Elo$20 / monthStrong21Gemini generalGoogleGoogle DeepMind's natively multimodal model family, deeply integrated into Workspace, with a very large context window.1527Elo€4.99 / monthStrong22ChatGPT generalOpenAIOpenAI's versatile, agentic flagship with a very large context window and a broad ecosystem of integrations.1485Elo$8 / monthStrong23
Qwen generalAlibaba Cloud · free to tryChinese model family from Alibaba Cloud with a free chat app, a large open-weight catalogue and the proprietary flagship Qwen3.8-Max with 1 million tokens of context.1484Eloon requestCaution24Le Chat (Mistral) generalMistral AIFrench/European AI lab with open-weight and commercial models and the Le Chat assistant, with EU data residency as its core proposition.1426Elo$14.99 / monthStrong25
Copilot generalMicrosoftMicrosoft's AI layer that combines GPT and Claude models with your own organisational data and the Microsoft 365 apps.1485Elofrom €10 / monthCaution26
GLM (Z.ai) generalZ.ai (Zhipu AI) · free to tryChinese AI lab (Zhipu, international Z.ai) with the open-weight GLM family under MIT licence, particularly strong at programming and agent tasks at low prices.1483Elo$18 / monthCaution27
Kimi generalMoonshot AI · free to tryChinese AI lab (Moonshot AI) with the open-weight Kimi K2 family and an assistant that focuses strongly on agents, deep research and long documents.1487Elo$19 / monthCaution28
Grok generalxAIThe model from xAI, integrated into X, distinguished by real-time access to live X posts and web data.1471Elo$10 / monthCaution29
DeepSeek generalDeepSeek · free to tryOpen-weight (MIT) Chinese language model with a 1M context window and a built-in reasoning mode, at very low API costs.1475Eloon requestCaution30
Perplexity generalPerplexity AI · free to tryUS AI search engine that delivers answers with source citations via its own Sonar models and external frontier models, with separate Enterprise agreements on data use.–Elo$20 / monthUnknown31
Llama generalMeta · free to tryMeta's natively multimodal, open-weight Mixture-of-Experts family (Scout and Maverick), free to download and self-host.–Eloon requestCaution
AmberScript professional toolAmberScript (Amsterdam, Netherlands) · NetherlandsAI transcription and subtitling with strong Dutch language support for journalists, media and researchers.own modelfrom €10 per hour (pay-as-you-go)…Strong2Phrase Localization Platform professional toolPhrase GmbH (Hamburg, Germany) / Phrase a.s. (Prague, Czechia) · EU · free to tryTranslation management platform (evolved from Memsource) with a CAT editor, translation memories, term bases and automatic engine selection per language pair. Strong in software localisation: strings from your repository come in automatically and translations go back automatically. Separate plans for freelancers, in-house teams and translation agencies.on Freelancer $27/moStrong3Crowdin professional toolCrowdin OÜ (Estonia, Europe) · EU · free to tryLocalisation platform with a generous free plan, popular with software projects, open source and non-profits. Texts come in automatically from your repository, translators (in-house team, community or agency) work online and translations flow back into the code. You connect AI translation and proofreading to your own model provider, so you keep control over where texts go.on free planStrong4DeepL Pro professional toolDeepL SE (Cologne, Germany) · EU · free to tryTranslation engine that often translates European language pairs more naturally and with better context awareness than free alternatives. As well as plain text, you can translate entire Word, PowerPoint and PDF files while preserving formatting; with a glossary you can enforce your own terminology. DeepL Write helps with rewriting and tone. There is an API so you can build translation into your own system or CAT tool.own modelfree version with limitsGood5memoQ translator pro professional toolmemoQ (Budapest, Hungary, Europe) · EU · free to tryClassic translation environment (CAT tool) for professional translators who want to stay in control. Translation memory, term bases and LiveDocs reuse earlier work; the Muse feature suggests the next words while you type, based on your own translations. Supports a hundred languages and virtually every file format, including client packages.own model€ 44 per licence per month or €…Good6Weglot professional toolWeglot SAS (Paris, France) · EU · free to tryMakes an existing website multilingual in a few steps: you add a script or plug-in, Weglot detects all text, translates it automatically and serves it on its own language URLs that search engines index. You then refine the translations manually or through a translation agency. Works with almost any CMS, including WordPress, Shopify and Webflow.on free up to 2,000 wordsGood7STSYSTRAN Translate professional toolSYSTRAN by ChapsVision (Paris, France) · EUFrench translation technology that can also run on your own servers, relevant for governments, law firms and defence-related organisations that must not send confidential documents to a cloud. Translates fifty-plus languages and thirty-plus file formats, with the option to train models on your own field-specific terminology.own modelsubscriptions (Translate PRO, Ente…Good8Lara (Translated) professional toolTranslated (Rome, Italy, Europe) · EU · free to tryAI translator that explains why it makes a given choice and takes context from the entire document into account. Translates text into over 200 languages, documents in more than 60 formats while preserving layout, and can also interpret images, audio and live conversations. Built by Translated, a translation agency that used its own translation memories as a foundation.own modelfree up to 60,000 characters per monthGood9Redokun professional toolRedokun Srls (Montebelluna, Italy, Europe) · EU · free to tryTranslation platform focused on formatted documents: you upload an InDesign, Word or PowerPoint file and receive the same file back in another language, with the formatting intact. Translators work in a web editor, without needing the original software. Practical for marketing and documentation teams who publish brochures, catalogues and manuals in multiple languages.own modelProject Pass € 295 one-off (50.0…Good10Localazy professional toolLocalazy s.r.o. (Brno, CZ) · EU · free to tryCzech translation management platform for localising software, apps and websites, with its own AI translation feature that takes glossaries, context and style guides into account. You can also connect DeepL, Google Translate or OpenAI and bring in professional translators.own modelFree free (up to 200 source keys)Good11LanguageWire professional toolLanguageWire A/S (Copenhagen, Denmark) · EUEuropean language platform that combines translation management, machine translation and a network of professional translators in one environment. You send content from your CMS or PIM to the platform, AI produces the first draft and a professional translator validates it. For organisations that publish in many languages on a regular basis and want one workflow with an audit trail instead of loose emails with Word files.own modelon request (quote per project…Limited12XTM Cloud professional toolXTM International Ltd (Beaconsfield, United Kingdom)Translation management system for organisations that manage large volumes of content in many languages. Projects start from templates, translation memory and terminology are applied automatically, and a quality score determines which files still need human review. Supports eighty-plus file formats while preserving structure, including XML and InDesign.own modelon request (price tailored to…Limited13Lokalise professional toolSIA Lokalise (Riga, Latvia, Europe) · EU · free to tryLocalisation platform mainly used to keep apps, websites and product texts multilingual. Developers push text from the code, translators work in the web editor with context and screenshots, and AI delivers the first draft while enforcing your own glossary. Strong in workflows where every release produces new strings.own modelExplorer $149 per user/month, Growth $379…Limited14Supertext professional toolSupertext AG (Zurich, CH) · free to trySwiss AI translator with its own translation LLM for 28 languages, including Dutch, with optional review by professional translators from CHF 5.70. You translate text and editable files in the browser, via Office add-ins or through the API.own modelFree freeLimited15Taia professional toolTaia Translations Ltd (London, UK) · free to tryTranslation platform that combines AI translation of documents, a CAT editor for teams and professional translators, for 204 languages and 65+ file formats. You choose an AI level per project (Standard, Advanced or Premium), charged in credits per word.on Free free (5,000 credits/month)Limited16DDubformer professional toolDubformer B.V., Amsterdam (NL) · NetherlandsAI dubbing for films, series and videos in 140+ languages, with human quality checks by native speakers and voice management per project.own modelpilot project $400Limited17HSHappy Scribe professional toolHappy Scribe Limited, Dublin (IE) · EU · free to tryTranscription, subtitling and translation of video and audio in 150+ languages, with a subtitle editor, export to SRT/VTT and optional human correction.on Free €0 (one-off 10 min)Limited18FFlawless professional toolFlawless Holdings Limited, London (GB) and Flawless AI Inc. (US)AI for feature films and series: adjust dialogue and performances after filming (DeepEditor) and dubbing with matching lip movements in other languages (TrueSync).own modelon requestLimited19Trados Studio professional toolRWS / Trados (United Kingdom) · free to tryThe most widely used translation environment in the sector; many clients deliver their packages in Trados format as standard. Combines translation memory, terminology management (MultiTerm) and machine translation in one editor, with AI assistance for pre-translation and rewriting. There is a desktop version for freelancers and a cloud variant (Trados Team/Enterprise) for agencies.own modelsubscription or perpetual licence…Unknown20Claude generalAnthropicFamily of language models from Anthropic that excels at long documents, careful reasoning, coding and reliable, safe output.1506Elo$20 / monthStrong21Gemini generalGoogleGoogle DeepMind's natively multimodal model family, deeply integrated into Workspace, with a very large context window.1527Elo€4.99 / monthStrong22ChatGPT generalOpenAIOpenAI's versatile, agentic flagship with a very large context window and a broad ecosystem of integrations.1485Elo$8 / monthStrong23Qwen generalAlibaba Cloud · free to tryChinese model family from Alibaba Cloud with a free chat app, a large open-weight catalogue and the proprietary flagship Qwen3.8-Max with 1 million tokens of context.1484Eloon requestCaution24Le Chat (Mistral) generalMistral AIFrench/European AI lab with open-weight and commercial models and the Le Chat assistant, with EU data residency as its core proposition.1426Elo$14.99 / monthStrong25Copilot generalMicrosoftMicrosoft's AI layer that combines GPT and Claude models with your own organisational data and the Microsoft 365 apps.1485Elofrom €10 / monthCaution26GLM (Z.ai) generalZ.ai (Zhipu AI) · free to tryChinese AI lab (Zhipu, international Z.ai) with the open-weight GLM family under MIT licence, particularly strong at programming and agent tasks at low prices.1483Elo$18 / monthCaution27Kimi generalMoonshot AI · free to tryChinese AI lab (Moonshot AI) with the open-weight Kimi K2 family and an assistant that focuses strongly on agents, deep research and long documents.1487Elo$19 / monthCaution28Grok generalxAIThe model from xAI, integrated into X, distinguished by real-time access to live X posts and web data.1471Elo$10 / monthCaution29DeepSeek generalDeepSeek · free to tryOpen-weight (MIT) Chinese language model with a 1M context window and a built-in reasoning mode, at very low API costs.1475Eloon requestCaution30Perplexity generalPerplexity AI · free to tryUS AI search engine that delivers answers with source citations via its own Sonar models and external frontier models, with separate Enterprise agreements on data use.–Elo$20 / monthUnknown31Llama generalMeta · free to tryMeta's natively multimodal, open-weight Mixture-of-Experts family (Scout and Maverick), free to download and self-host.–Eloon requestCautionNo options with these filters. 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Quality: LMArena · prices: OpenRouter and providers · as of 9 November 2026
Last checked: 9 November 2026 · How we check
How to get started in translation & localisation
- Try this weekStart free with Phrase Localization Platform on non-confidential work. You'll see within an hour what AI can do for translation & localisation.
- Sort the basics (GDPR)Choose the business variant, sign a data processing agreement and turn off training on your data. See the GDPR check per option.
- Go deeper with professional softwareBook a demo with AmberScript: built for translation & localisation, with the strongest published safeguards.
Where AI does the most in this field
The core tasks we track for this profession. Tools in the list above can be compared on these tasks.
- 1Create a first translation draft and machine pre-translation (post-editing)
- 2Keeping terminology and house style consistent with term bases and translation memory
- 3Rolling out and maintaining multilingual websites, apps and software
- 4Translate documents, subtitles and manuals while preserving formatting
Per task in translation & localisation
A separate comparison for each task, with the top pick shown.
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Frequently asked questions
Related professions
What is the best AI for translation & localisation?
That depends on your requirements. Field-specific solutions such as AmberScript are built for translation & localisation; general assistants such as Claude are more broadly usable and cheaper to get started with. Our picks are at the top of this page.
What is the difference between a 'field-specific tool' and a 'general assistant'?
A general assistant (such as ChatGPT or Claude) is a clever all-rounder you talk to yourself. A field-specific tool is a ready-made product for translation & localisation, often built on top of such an assistant, with its own domain knowledge, integrations and GDPR commitments. The 'Quality' column shows which model a tool runs on.
May I use confidential data?
Client source documents often contain personal data or trade secrets: never use the free consumer version of a translation tool for client material. Require a data processing agreement, check that your texts are deleted after translation and not used for training, and choose EU hosting where possible. Many translation contracts and NDAs with end clients prohibit passing texts to third parties without consent, so document which MT engine you use. And stay responsible for the content: AI translations read fluently but can reverse figures, negations and legal nuances.
What does the GDPR profile mean?
Our summary of what the provider publishes about data protection: EU hosting, no training on your data, certifications and provenance. 'Strong' = several safeguards published; 'Unknown' = the provider shares little, so ask them. It is a tool, not legal advice.