The standard feature set of SDL Passolo offers connectors to machine translation systems such as SDL Language Cloud, Google Translate and Microsoft Translator. DeepL is a popular neural machine translation service that supports many European languages. The DeepL MT Provider is a translation provider that connects SDL Passolo with the DeepL machine translation server. Using DeepL Pro API packages for CAT tools, users can directly pre-translate complete translation lists or get machine translation proposals for single software strings in SDL Passolo. 


The DeepL MT Provider for SDL Passolo from Traloctec is delivered using a small installer program that you downloaded from our website. Start the installer. After you have accepted the license agreement, the installer lists all the installed SDL Passolo versions on your system. 

Select one of the installed SDL Passolo versions and click on Next. The add-in will be installed into the System folder of the selected SDL Passolo version. If you would like to install the DeepL MT Provider for another SDL Passolo installation you must again call the installation. After the installation the DeepL MT Provider for SDL Passolo will appear in the list of active Passolo add-ins. 


After installing the DeepL MT Provider for SDL Passolo, it runs as a trial license. The trial period is 5 days, during which you can test the software. In this time period, the connectivity function to the DeepL machine translation server is available but the connector is randomly exchanging words in the text strings that are sent to the DeepL server. Sentences like: 

The quick brown fox jumps over the lazy dogs.
might be sent to the DeepL server as
The quick brown lorum jumps over the lazy dogs. 

This enables you to test whether the connector functionality fits your requirements. After you purchase and activate a license for the DeepL MT Provider for SDL Passolo, no word substitutions will occur anymore and your original text strings will be sent to the DeepL server. 

In the License tab, you will find version and copyright information as well as information about the license. When running as a trial license, information on how long it will work is displayed. Using the links you can call various functions. 

The Product Website will open a browser window showing the product website with information. You can purchase a license using the eCommerce solution from the product website. 

Clicking on Product Activation will start the internal activation component. You need an internet connection to process the product activation. 

After finalizing the purchase and paying for the license, you will receive an email that contains the License Key. Insert the License Key, then click on Install to activate the license. The License Key will be sent to the Traloctec authentication server and when verified it will activate the license and store the license file on your system. Please note that the system will need an active internet connection to authenticate the license. 

Uninstall License will allow you to deactivate this license on the current computer so that you can reactivate it with the same License Key on a different computer. 

Support Portal will open a browser window showing the support website where you can report any issue with the software. 

Online Help will open a browser window showing the online help for the software. 


Regardless of whether you are just evaluating the add-in or using it in production for translation, it is necessary to enter a valid DeepL Pro API key. 

On the website you will find a list of the offered packages. You must select either an Advanced or Ultimate package, because only these packages support an unlimited usage in CAT tools.

To insert the DeepL Pro API key, go to the register Settings in the Setup dialog.

Depending on the package you have ordered from DeepL limitations apply which are displayed in the dialog.

The Formality drop down provides a selection whether the translated text should lean towards formal or informal language. More information can be found here.

Please note that the DeepL MT Provider for SDL Passolo is not sending documents to the DeepL server, it is just sending text strings. Only character limitations will be relevant for the users to be considered.



To get machine translation proposals or translate a complete translation lists the DeepL MT Provider for SDL Passolo must be activated. To use it in pre-translation processes, call the Options dialog in SDL Passolo and open the Pre-Translation page.

Activate the option allow automatic translation. This will enable SDL Passolo to use machine translation connectors while pre-translation lists or entries.

Then call the Options dialog in SDL Passolo and open the Fuzzy Matching page.

Activate the DeepL Pro MT Provider in the Translation Add-In node.

Please note that any communication problems with the DeepL Server may result into deactivating the DeepL Pro MT Provider in this list. After fixing any connection issues, go back to this Options page and again reactivate DeepL Pro MT Provider


When all the settings are inserted correctly as described above the DeepL Pro MT Provider behaves like any other translation provider in SDL Passolo. Clicking on the Pre-Translate button in the Home ribbon will start the pre-translation from all activated sources and finally may insert machine translated text strings into the translation list. 

Interactive Translation

When interactively translating in the SDL Passolo translation list, i.e. with the Translation Assistant, matches will be displayed in the Translation register of the Output dialog.

You can take over the matches or machine translation proposals with the function keys (CTRL+1 … CTRL+3) or by double-clicking the entry that you would like to take over.

Scroll to Top