AI translation built for businesses that can’t compromise on data security.
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In independent tests, Supertext translates better than DeepL in 3 out of 4 languages – with full data privacy on Swiss infrastructure.
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From regulated industries to international business communication – here are the most common use cases for one of the world's most translated language pairs.
For Swiss, French, Belgian and Canadian organisations translating legal and financial documents into English for international partners or regulators.
For French-speaking brands entering English-language markets – where tone and cultural register matter as much as accuracy.
For researchers and institutions translating French-language work into English for international publication or funding bodies.
“Supertext integrates easily into our workflows aligning with our language direction and is used extensively throughout the company.”
“50% more efficient thanks to Supertext’s optimised language models for translation in seven language pairs.”
“Delivery times reduced by two-thirds and consistent quality in +35 languages thanks to Supertext.”
“Supertext integrates easily into our workflows aligning with our language direction and is used extensively throughout the company.”
“50% more efficient thanks to Supertext’s optimised language models for translation in seven language pairs.”
“Delivery times reduced by two-thirds and consistent quality in +35 languages thanks to Supertext.”
Enjoy the benefits of an Essential subscription and try out more Supertext features free of charge for 30 days – you can cancel at any time.
Yes, you can use our translator for free and start translating right away – up to 5,000 characters and 5 files per month.
Need more translation power? Try Supertext Essential free for 30 days.
Supertext has outperformed DeepL in blind tests with professional translators in several language combinations. The translator performed noticeably better than the competitor, especially with longer texts. In addition, Supertext integrates human professionals on demand, supports rare language variants and local dialects and runs exclusively on Swiss servers.
That depends on you: with each of our subscriptions, your source and target texts are always deleted immediately after the translation. Text entered by Supertext Free users (without a subscription) may be used further improve our language models.
In all cases, your translation data will always be transmitted in encrypted form and processed exclusively on the most secure Swiss servers.
You can find out more about the differences in detail on our subscription overview.
Yes, 100%. You can find an overview of the security features of AI translation on our subscription overview. For more detailed information, please consult our privacy policy or contact us.
AI translator
Our online translator can handle various text formats, depending on your subscription. Disclaimer: Verification is currently only designed for text entered directly into the online translation interface.
| Supertext Free | From Essential | |
|---|---|---|
| Microsoft Word (docx, doc, docm, dotm, dotx, rtf, dot) | ✓ | ✓ |
| Microsoft PowerPoint (pptx, ppt, pptm, potx, ppsm, ppsx) | ✓ | ✓ |
| Microsoft Excel (xlsx, xls, xlsm, xltm, xltx, xlt, xlsb) | ✓ | |
| ✓ | ||
| SRT (video subtitles) | ✓ |
Supertext API
The API lets you translate tagged text or entire documents:
| HTML, XML | Office documents (.docx, .xls, .pptx) |
| PDFs | Subtitles (.srt) |
| Plain text (.txt) |
