What is Doc3 and who is it for?

Doc3 is an AI translation and CAT tool for professional translators and teams. It combines automatic document translation, translation memory, glossary management, and real-time QA in a simple browser interface.

How much does Doc3 Pro cost and is there a free trial?

Doc3 Pro is $15 per month and includes unlimited projects and AI translation volume. New users can start a free 30-day trial and new subscribers receive a 20% discount for the first three months.

Which file formats does Doc3 support?

Doc3 supports common CAT and office formats, including SDLXLIFF, MQXLIFF, DOCX, XLSX, and PPTX, with full editing and export back to the original format.

Does Doc3 include machine translation and which engines can I use?

Yes. Doc3 includes its own neural MT engine with unlimited use in Pro. You can also connect external MT engines—DeepL, Google, and Microsoft Translator—by adding your API key in Account Settings.

How do I connect DeepL, Google, or Microsoft Translator to Doc3?

Open Account Settings → Commercial MT Settings and paste your API key from the chosen MT provider. Doc3 simply connects to the account you manage with that provider.

What is CrossCheck real-time QA in Doc3?

CrossCheck performs 60+ checks for numbers, punctuation, tags, glossary terms, and consistency. You can apply checking profiles and get warnings while translating.

Does Doc3 support many languages?

Yes. Doc3 supports direct AI translation among hundreds of language combinations, suitable for both general and technical content.

Can I manage translation memories and glossaries online?

Yes. Doc3 Pro includes cloud TM and glossary management with editing, copying, merging, and deletion, plus automatic creation of memories as you complete projects.

Is Doc3 a browser-based tool and does it work on Mac or Windows?

Doc3 runs in the browser on both Mac and Windows devices (desktop and laptop) and can be accessed on tablets or phones for quick checks.

Is Doc3 GDPR-compliant and where is data hosted?

Doc3 operates as a cloud service hosted in the EU and follows GDPR standards. Pro users get private cloud space for projects, memories, and glossaries.

How do I cancel my Doc3 subscription?

You can cancel a paid subscription via the cancel option in your Account Settings. Service continues until the end of the current billing period and then stops renewing.

How do I terminate my Doc3 account or request cancellation by email?

To terminate your account (free or paid) by email, send a notice to notify@doc3.com stating your user-ID and clearly in English that you want to cancel your account and/or subscription. Download private data before termination; data is deleted after a retention period as stated in the terms.

What happens to my projects and data after cancellation?

Your access remains active until the end of the paid period. After termination, Doc3 deletes user data after the stated retention window, so export your files, memories, and glossaries before cancelling.

AI Translation & CAT Tool
with Unlimited Use

Doc3™ is a complete AI translation solution and CAT tool with a Full Auto translation mode. Translate entire documents to near-perfect quality in any language, and work with Trados, MemoQ, and other industry formats.

Direct Translation From/To (almost) Any Language with FULL AUTO mode
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Unlimited use of AI Translation for Hundreds of Languages
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Translation Memory Software with Extensive Translation Memory and Glossary Management
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Proprietary AI MT Engine (Both Tech & General Content)
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Full Editing Support of Trados, memoQ, and other CAT Tool formats
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API Connectors to Popular MT Engines incl. DeepL
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AI translation of the entire MS Office and OpenOffice documents
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Built-in Real-time QA With World-renowned CrossCheck®
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Intuitive Browser-driven UI for Fast Touch-ups
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Doc3 ™ provides AI-powered Machine Translation with a CAT tool delivering near-perfect translation results.

Doc3™ helps every translator and translation editor to work faster and smarter.

Translate any type of document quickly and accurately, with consistency and reuse of previously translated text.

Doc3™ includes all essential CAT tool features: translation memory management, glossary management in your private cloud, and full editing support for Trados, MemoQ, and many other formats. Translate automatically between hundreds of language pairs with unlimited volume, powered by advanced AI translation for near-perfect results.

At just $15/month, Doc3™ is the most affordable AI translation & CAT tool on the market — and you get a FREE 30-day trial.

Auto translate among hundreds of language combinations with unlimited volume.

Why subscribe to Doc3™

For only $15/month, you get:

Full editing support of Trados, memoQ, and many other CAT tool file formats

Unlimited AI translation volume

Support for hundreds of languages

Smart editing interface for quick touch-ups

Real-time Quality Assurance, incl. Style guides

Proprietary neural MT for hundreds of languages (free unlimited use)

Online translation memory management and glossary management

Full access to past projects

1. Create an account.
2. Run a free 30-day trial.
3. Try all the smart features of Doc3™

New subscribers get an exclusive 20% discount for the first three months.

Doc3™ Pro is the most affordable AI CAT tool on the market

The Pro subscription includes everything a professional translator needs:

Unlimited Projects and AI Translation Volume
Private Cloud Space
Hundreds of Languages Supported
Real-time QA, incl. Style Guides (to spot e.g. number errors, tag errors, punctuation, consistency issues, wrong/missing glossary terms, etc.)
Translation Memory & Glossary Management
Direct Translation Among Hundreds of Language Combinations

These are barebones essentials that translators and editors use, but free from external clutter and confusing settings, with a very affordable price.

Create an account and try all the smart features of Doc3™ in a free 30-day trial. Feel free to cancel your subscription at any time.

New subscribers receive a 20% discount for the first three months.

Ideal if you work with language translation in your daily life or at work.

Doc3™: Developed by idioma®

The Doc3™ solution has been developed by the idioma® group, specializing in high-volume industrial translation since 1980.

Doc3™ started out as a CAT solution in 2011, and has been continuously developed and improved over time. Today, Doc3 is hosted in the cloud and is supported by both AI and Large Language Models. It is used by thousands of linguists daily to support our day-to-day operations, and it is also available as a subscription model at very favorable rates to anyone working with language translation across the world.
Doc3 features everything a linguist needs from instant, high-quality AI translation and a superior browser-driven editing environment to editable style guides and real-time QA that spots even the slightest mistakes.

Join in our quest for quality in translation and choose a translation & editing tool that will support and boost your efforts as well.