DeepL Pro (available starting October 2018) – Terms and conditions

DeepL GmbH, Maarweg 165, 50825 Cologne, Germany ("DeepL") specialises in machine translation services and provides the online translation service DeepL.com.

Customer wishes to utilize DeepL's translation services in its own software products and/or for other business purposes. In order to allow Customer to make use of the services, Customer is granted access to the DeepL application programming Interface (“API”) and to an extended version of the DeepL web translator in accordance with and to the extent of these Terms and Conditions.

These DeepL Pro License Terms and Conditions (“Terms and Conditions”) are available at https://www.deepl.com/pro-license.html and can be downloaded and printed by the Customer.

  1. 1Definitions

    1. 1.1

      API“ refers to the Application Programming Interface provided by DeepL to the Customer as set out in the Service Specification and the Documentation provided by DeepL.

    2. 1.2

      Web-Translator” refers to an extended version of the DeepL web translator which provides the Customer with a web interface to the translation services in accordance with the Service Specification.

    3. 1.3

      API Response” refers to the API’s response to Customer’s Requests.

    4. 1.4

      API Request” refers to an HTTP request transmitted by the Application to the API.

    5. 1.5

      Application” refers to the software or service developed by or on behalf of the Customer which utilizes the API.

    6. 1.6

      Business Days” are Monday through Friday, excluding public holidays in North Rhine-Westphalia, Germany.

    7. 1.7

      Characters” shall have the meaning as set out in the definition for “Number of Characters”.

    8. 1.8

      Content” refers to text sent by the Customer to the API and the Web-Translator as specified in the Service Specification in order to have it processed by the machine translation infrastructure operated by DeepL.

    9. 1.9

      Documentation” refers to an electronic documentation of the requirements and functionality of the API provided to the Customer in English language.

    10. 1.10

      End Users” refers to the users of Customer’s Application.

    11. 1.11

      Number of Characters” refers to the number of characters of the Content transmitted to the API based on the used character encoding. For the avoidance of doubt, multi-byte encoded characters shall count as single character.

    12. 1.12

      Processed Content” refers to any Content that has been processed using the API or the Web-Translator.

    13. 1.13

      Service Specification” refers to the specification of the API and the web translator as agreed upon conclusion of this Agreement.

  2. 2Subject and conclusion of the Agreement

    1. 2.1

      Subject to these Terms and Conditions and the Service Specification, DeepL provides Customer with access to the API and Web-Translator in accordance with the Service Specification and the applicable Documentation for the duration of this Agreement.

    2. 2.2

      Customer pays to DeepL the remuneration agreed upon conclusion of the Contract.

  3. 3Services of DeepL

    1. 3.1

      DeepL provides the Customer with access to the API and Web-translator (together “the Services”) within the term and scope of this Agreement, including the Service Specification, and will provide Customer with respective access credentials for the API.

    2. 3.2

      The API allows Customer to use the technical infrastructure for machine translation operated by DeepL by means of transmitting Content to the technical infrastructure. DeepL shall process the Content in accordance with this Agreement, the Service Specification and the Documentation. However, DeepL is neither obligated to ensure nor warrants correctness or accuracy of API Responses or Processed Content. In particular, DeepL does not give any guarantee regarding the correctness of the translations created by the machine translation system.

    3. 3.3

      The Web-Translator provides Customer an enhanced web interface to use the DeepL translation service as set out in the Service Specification, providing means to translate texts in a web browser.

    4. 3.4

      The license to use the Web-Translator is a single-user license, i.e. the access credentials for the Web-Translator can be only used by one person. The same person can use the access credentials on multiple computers. If the Customer wishes to provide the Web-Translator for use to more than one person, multiple single-user licenses must be purchased or a team multi-user license must be purchased.

    5. 3.5

      The license to use the API within CAT tools is a single-user license, i.e. the access credentials for the API can be only used by one person. The same person can use the access credentials on multiple computers. If the Customer wishes to grant access to use the API within CAT tools to more than one person, either multiple single-user licenses or a team multi-user license must be purchased.

    6. 3.6

      DeepL will only store Content on its servers to the extent technically required to provide its services. Customer’s Content will neither be perpetually stored on DeepL’s servers nor returned to the Customer. For the avoidance of doubt, DeepL shall be entitled to create and retain access logs for billing, security and statistical purposes. Such access logs shall not contain any of Customer’s Content. However, access logs may contain meta data of API Requests such as time of the API Request and size of the transmitted Content.

    7. 3.7

      DeepL may, in its sole discretion, provide the Customer with software development kits or code samples (hereinafter jointly referred to as “Code Samples”). Code Samples are provided free of charge and are excluded from the paid services provided by DeepL. Code Samples are provided in electronic form and can be downloaded from a dedicated website. DeepL is not obligated to continue development of Code Samples or to keep Code Samples functional or available at all times. Code Samples are not suited for any use in production environments and are provided for educational purposes only.

    8. 3.8

      DeepL reserves the right to add additional features to the Services at any time. Furthermore, DeepL may change, limit or remove existing features for reasons of data security, technical necessities or due to changes in applicable law, provided that the change, limitation or removal is reasonable for the Customer in consideration of the interests of both Parties. DeepL shall inform the Customer of such changes in due time in writing (e-mail sufficient).

    9. 3.9

      Particularly in view of the on-going development of the API, DeepL may introduce new versions of the API with an additional or different range of features. Furthermore, DeepL may terminate deprecated versions of the API provided that the termination is reasonable for the Customer in consideration of the interests of both Parties. DeepL shall inform the Customer of such termination in due time in writing (e-mail sufficient).

    10. 3.10

      Further services, including but not limited to consulting, individual development, or implementation or training services, shall only be owed by DeepL upon express written agreement.

    11. 3.11

      DeepL is entitled to commission third parties to fulfil its contractual duties in whole or in part.

  4. 4Availability

    1. 4.1

      DeepL shall provide an annual average of 97% availability for the API and the Web-Translator, subject to different agreements in the Service Specification or separate written agreements with the Customer. The agreed availability excludes planned maintenance work as well as service interruptions which are beyond DeepL’s control, including but not limited to short-term and undue increase in the number of API Requests by the Customer which requires an unplanned increase in system capacity.

    2. 4.2

      Availability shall be calculated as the number of hours the services of the API and the Web-Translator are functional, divided by the total number of hours within the respective calendar year.

  5. 5Conclusion of the contract

    1. 5.1

      A contract regarding DeepL’s services under this Agreement can be concluded by providing an email address and a password and then entering a billing address and payment information. After that, a summary of the order will be displayed for review. If the Customer clicks on the button “Buy now” the contract is concluded when the subsequent page loads successfully and a subscription number is provided.

    2. 5.2

      DeepL reserves the right to reject Customer requests to conclude a contract. In this event, DeepL will display a respective message during the buying process, at latest when the Customer has clicked the button “Buy now”. In particular, DeepL rejects contracts with Customers providing machine translation services, including but not limited to Amazon.com, Inc., Microsoft Corporation, Google LLC, Alphabet Inc., Apple Inc., Facebook Inc., and their subsidiaries.

    3. 5.3

      Until clicking the button “Buy now” (or a comparable one), the Customer can change or abort the order at any time.

    4. 5.4

      DeepL provides the Customer with a free trial for selected products.

    5. 5.5

      DeepL shall provide its services immediately after conclusion of the contract.

    6. 5.6

      The contract can be concluded in English or German language.

  6. 6Copyright and Intellectual Property

    1. 6.1

      DeepL grants the Customer a non-exclusive, non-transferable, non-sublicensable worldwide right to use the API and the Web-Translator for its intended purpose within the term and scope of this Agreement.

    2. 6.2

      DeepL grants the Customer a non-exclusive, non-transferable, non-sublicensable worldwide right to use the provided Documentation and support materials within the term and scope of this Agreement, in particular, to reproduce them and provide them to employees or contractors to the extent required for the intended use of the API.

    3. 6.3

      DeepL grants the Customer a non-exclusive right to use the provided Code Samples for educational and internal development purposes without restriction in regard to time or location, in particular to reproduce the Code Samples and provide them to employees or contractors, to modify and create derivative works of the Code Samples and to use, sub-license or distribute such derivative works without limitation.

    4. 6.4

      All rights regarding Customer’s Content remain with Customer. However, Customer grants DeepL the non-exclusive worldwide right to use the Content solely in order to provide DeepL’s services to the Customer. In particular, Customer grants to DeepL the right to temporarily store, modify, process, translate and transmit the Content, and to sublicense the foregoing rights to its subcontractors, to the extent required to provide the services set out in this Agreement.

  7. 7Obligations of the Customer

    1. 7.1

      Customer is solely responsible for the implementation of the API as well as the installation, operation and maintenance of its Application, including compliance of its Application with all applicable laws, regulations and other third party requirements.

    2. 7.2

      Customer is responsible to comply with all technical requirements set out in the Service Specification and the Documentation. In particular, Customer must ensure that any Content is transmitted to the API in a valid data format and data encoding.

    3. 7.3

      Customer may use the API and the Web-Translator solely for the purpose agreed between the Parties. In particular, Customer may not, and will not allow third parties to use the API and the Web-Translator, translations created using the API and the Web-Translator, Documentation or other data, information or service provided by DeepL unless expressly authorised by DeepL in written form

      1. in connection with or for the purpose of operating critical infrastructure such as electrical power stations, military or defence equipment, medical appliances or other equipment whose failure or impairment would result in unforseeable economical or physical damages, including but not limited to critical infrastructure in terms of the European Directive 2008/114/EC;

      2. for any illegal activities, including development of any Applications infringing any third-party rights or any other applicable laws or regulations;

      3. for spamming or any other unsolicited advertising;

      4. to perform benchmark or other capacity testing of DeepL’s technical infrastructure;

      5. to create a similar product, service or API whose primary purpose is to provide machine translation services, including but not limited to bilingual/multilingual dictionaries;

      6. to develop, market or train a machine translation algorithm;

      7. to transmit any data to DeepL which may not be transmitted to or processed by DeepL due to data protection laws, contractual or statutory confidentiality obligations, export restrictions or other statutory provisions or third-party rights.

    4. 7.4

      Unless expressly agreed upon otherwise, Customer must disclose to End Users of an Application that any Processed Content displayed to the End Users without manual modification of Customer has been created using the DeepL API by either displaying the logo or the brand name (including the domain) of DeepL. However, Customer must not express or imply that DeepL is responsible for the Processed Contents or that Customer acts on behalf of DeepL.

    5. 7.5

      Unless expressly agreed upon otherwise, access credentials may only be used for one Application at the same time. However, Customer may use the same access credentials for development, testing and production versions of the same Application.

    6. 7.6

      In the event that Customer uses the API within an Application which is distributed on third-party platforms (e.g. mobile apps), it is Customer’s sole responsibility to comply with any and all requirements and terms of service of such third-party platforms.

    7. 7.7

      Customer is obligated to keep the access credentials provided by DeepL secure, and undertakes not to disclose them to any third parties unless required for the contractually intended and permitted use of the API and the Web-Translator. In particular, Customer is not entitled to repackage or resell access credentials or its access to the API or the Web-Translator to any third parties unless expressly agreed upon otherwise. In the event that a disclosure of access credentials to third parties is required for the contractually intended use of the API, Customer is solely responsible to take adequate and effective precautions to protect the access credentials from misuse or unauthorised access. In particular, access credentials may not be stored in configuration files in plain text and may not be transmitted over unencrypted public network connections.

    8. 7.8

      Customer is obligated to adhere to any security precautions, functional and other limitations of the API. In particular, the Customer must not bypass, remove, defeat, avoid, deactivate or otherwise circumvent protection or authentication mechanisms or misuse API methods for purposes other than those intended or expressly documented.

    9. 7.9

      To the extent reasonable and technically possible, Customer must take precautions during the implementation of the Application using the API to ensure that Customer’s Application will continue to work properly even if the API is not available, whether caused by DeepL’s or Customer’s fault.

    10. 7.10

      Customer must immediately inform DeepL if there are reasons to expect a significant increase in the number of API Requests for reasons such as an extraordinary surge in End Users, unusual marketing, promotions or other campaigns.

    11. 7.11

      If DeepL provides a new version of the API, Customer shall implement the new version of the API into its Application within a reasonable period of time from the announcement of the new API version, considering the extent of the changes, usual development time in the industry and the justified interests of the Customer, including the individual capacities of the Customer.

    12. 7.12

      Customer is obligated to observe all legal requirements for the collection, processing and use of data which is transmitted to and processed by DeepL for the Customer in connection with the provision of its services under this Agreement. In particular, Customer shall immediately inform DeepL if Customer intends to transmit personal data to DeepL using the API. Customer guarantees not to collect, process or use any personal data in connection with the API without the express consent of the data subject or sufficient other legal authorisation. DeepL will reasonably co-operate with Customer in order to assist Customer in implementing such required legal authorisations.

    13. 7.13

      Customer shall indemnify DeepL from any and all third-party claims including the necessary expenses for legal defence, asserted against DeepL due to a culpable violation of this Agreement by Customer. If third parties should assert such claims against DeepL, DeepL shall inform the Customer about the asserted claims without undue delay and leave the defence at the discretion of the Customer or undertake it in cooperation with the Customer. DeepL shall not settle or recognise claims of third parties without Customer’s consent. DeepL shall be entitled to request a reasonable advance for the incurred legal defence expenses to be anticipated. The indemnification shall accordingly apply to fines or other regulatory or judicial orders and claims.

    14. 7.14

      For products allowing API usage, the Customer may utilize the API key only within allowed products, as per the product's description.

  8. 8Remuneration

    1. 8.1

      Customer shall pay the base remuneration as well as the usage-based remuneration as agreed upon conclusion of the Agreement.

    2. 8.2

      Requests shall be billable in terms of Section 8.1 if (i) the API Request has been successfully transmitted using the API and (ii) there has been a valid API Response in accordance with the Documentation. Server errors shall be deemed as valid API Response only if they occur due to failures on the Customer’s side, including the use of incorrect, incompatible or insufficient Content or other use of the API which does not comply with the technical requirements set out in the Service Specification or Documentation provided by DeepL. Texts entered into the Web-Translator shall be billable in terms of Section 8.1 if translated and displayed in the Web-Translator.

    3. 8.3

      All amounts are understood to include VAT.

    4. 8.4

      For products with a fixed base remuneration, the remuneration is due at the beginning of each billing period.

    5. 8.5

      For new customers signing up for the DeepL Pro API plan, if, in the first billing period, the Customer’s usage reaches a total of 50 EUR, DeepL reserves the right to charge the credit card provided by the Customer immediately. This serves as a guarantee of payment and occurs only in the first billing period: Subsequent billing occurs at the end of each billing period, unless the base price and usage costs reach a total of 500 EUR (see Section 8.6).

    6. 8.6

      For products with a variable remuneration, the base remuneration and usage-based remuneration is due at the end of each billing period, as long as it does not exceed EUR 500.00. Base and usage-based remuneration is due in steps of EUR 500.00 which will be charged from Customer’s credit card once the amount is reached. Any remaining amount and any amount below EUR 500.00 is due at the end of each month. Customer will receive a monthly invoice on the overall monthly remuneration paid.

    7. 8.7

      DeepL reserves the right to suspend Customer’s access to the API if any due remuneration cannot be charged from Customer’s credit card and Customer has not paid the due remuneration within 3 Business Days upon written notice by DeepL (email sufficient). DeepL shall inform the Customer of an impending suspension at least 3 Business Days in advance. DeepL will restore access without undue delay, at least within 3 Business Days, if all outstanding debts have been paid. If the due remuneration which cannot be charged exceeds twice the total value of charges successfully paid by the Customer to DeepL in before, DeepL reserves the right to suspend the account immediately, informing the Customer immediately about the suspension (email sufficient).

  9. 9Term and Termination of this Agreement

    1. 9.1

      The Agreement is concluded for an indefinite period of time. Each Party may terminate the Agreement at any time with effect to the end of the current billing period.

    2. 9.2

      The statutory right of termination for good cause remains unaffected.

    3. 9.3

      DeepL reserves the right to restrict or suspend API features for other reasons than those specified in Section 3.5. In such case, DeepL shall inform the Customer of the proposed changes with two months’ prior notice in writing (e-mail sufficient). Furthermore, DeepL shall grant the Customer a reasonable period of at least two (2) months to declare whether or not Customer accepts the proposed changes. If Customer does not give any notice within this period, which shall commence running from the receipt of the notification, the proposed changes shall be deemed as agreed. DeepL shall inform the Customer of to this legal consequence, i.e., the right of objection, the objection period, and the implications of remaining silent.

    4. 9.4

      In the event of a severe, persisting, imminent or repeated material breach of these Terms and Conditions, in particular an obligation set forth in Section 6, DeepL shall be entitled to temporarily suspend Customer’s access to the API upon prior written notice (e-mail sufficient). Notwithstanding further rights under this Agreement, DeepL shall restore access within a reasonable period of time if the breach does not continue, is no longer imminent, or the Customer has provided a binding statement that the breach will not be repeated.

    5. 9.5

      In case the user violates the restrictions on using the DeepL API key in certain types of products (point 7.14), utilizes products with unlimited usage in a way in which they were not intended to (e.g. accessing the Web-Translator in a programmatic way) or allows more users to utilize products than licensed, DeepL reserves the right to disable the access and cancel the Agreement with immediate effect. In this case, the Customer will be refunded fees already paid proportionally.

    6. 9.6

      Within the free trial period, the Customer is allowed to terminate the Agreement at any time with immediate effect.

  10. 10Right to withdraw from the contract

    1. 10.1

      If the Customer is consumer in terms of Section 13 German Civil Code (“BGB”) the following right of withdrawal applies (also available at https://www.deepl.com/pro-revocation.html):

      Right of withdrawal

      You have the right to withdraw from this contract within 14 days without giving any reason.

      The withdrawal period will expire after 14 days from the day of the conclusion of the contract.

      To exercise the right of withdrawal, you must inform us (DeepL GmbH, Maarweg 165, 50825 Cologne, Germany, support@DeepL.com) of your decision to withdraw from this contract by an unequivocal statement (e.g. a letter sent by post, fax or e-mail). You may use the attached model withdrawal form, but it is not obligatory.

      To meet the withdrawal deadline, it is sufficient for you to send your communication concerning your exercise of the right of withdrawal before the withdrawal period has expired.

      Effects of withdrawal

      If you withdraw from this contract, we shall reimburse to you all payments received from you, including the costs of delivery (with the exception of the supplementary costs resulting from your choice of a type of delivery other than the least expensive type of standard delivery offered by us), without undue delay and in any event not later than 14 days from the day on which we are informed about your decision to withdraw from this contract. We will carry out such reimbursement using the same means of payment as you used for the initial transaction, unless you have expressly agreed otherwise; in any event, you will not incur any fees as a result of such reimbursement.

      If you requested to begin the performance of services during the withdrawal period, you shall pay us an amount which is in proportion to what has been provided until you have communicated us your withdrawal from this contract, in comparison with the full coverage of the contract.

      Model withdrawal form

      To DeepL GmbH, Maarweg 165, 50825 Cologne, Germany, support@DeepL.com:

      — I/We (1) hereby give notice that I/We (1) withdraw from my/our (1) contract of sale of the following goods (1)/for the provision of the following service (1),

      — Ordered on (1)/received on (1),

      — Name of consumer(s),

      — Address of consumer(s),

      — Signature of consumer(s) (only if this form is notified on paper),

      — Date

      (1) Delete as appropriate.

  11. 11Warranty

    1. 11.1

      If the Customer is a consumer in terms of Section 13 German Civil Code (“BGB”), Customer is entitled to the statutory warranty rights.

    2. 11.2

      If Customer is an entrepreneur in terms of Section 14 German Civil Code (“BGB”) DeepL only assumes liability for faults in the API and the Web-Translator to the extent set out in the following provisions.

    3. 11.2.1

      If the services for the API or the Web-Translator provided by DeepL are defective, DeepL shall provide an improved or new service of its choice within a reasonable time as of receiving a written complaint from the Customer. If third-party software which DeepL has licensed from third parties is being used, procurement of publicly available upgrades, updates or patches shall be deemed sufficient.

    4. 11.2.2

      Customer may reduce the agreed remuneration by a suitable amount if for reasons attributable to DeepL, the proper provision of services is not assured within a reasonable period of time set by Customer. The right to reduction is limited to the part of the services which is defective as compared to the monthly remuneration.

    5. 11.2.3

      If the reduction as per Section 11.2.2 continues for two consecutive months, or in two months of a quarter, Customer may terminate the Agreement without notice.

    6. 11.2.4

      Customer shall immediately inform DeepL of any occurring defects in writing (e-mail sufficient).

    7. 11.2.5

      Customer shall assist DeepL in rectifying the defects free of charge, in particular by providing DeepL with all required documents, data and other information required to analyse and correct the defects.

    8. 11.3

      With respect to the provision of free additional services, DeepL shall be solely liable for defects if DeepL has maliciously concealed (“arglistig verschwiegen”) the defects.

  12. 12General Liability

    1. 12.1

      Notwithstanding Section 11 DeepL is liable in accordance with the following provisions.

    2. 12.2

      DeepL is liable for deliberate acts and gross negligence as well as for bodily injury, death or harm to health.

    3. 12.3

      In the case of slight negligence, DeepL assumes liability for violating significant contractual obligations (“vertragswesentliche Pflicht”). A significant contractual obligation in the sense of this Section is an obligation which is required to make the performance of this Agreement possible in the first place and which the other party can reasonably rely upon to be fulfilled.

    4. 12.4

      In the case of Section 12.3, DeepL assumes no liability for lack of commercial success, lost profits and indirect damages.

    5. 12.5

      Liability pursuant to Section 12.3 above is limited to typical and foreseeable damages at the time this Agreement enters into legal effect.

    6. 12.6

      If Customer is an entrepreneur in terms of Section 14 German Civil Code (“BGB”) the Parties agree that the typical and foreseeable damage per year is limited to the annual amount payable by Customer.

    7. 12.7

      Liability limitations apply accordingly to the benefit of employees, contractors and assistants of DeepL.

    8. 12.8

      Any liability of DeepL for guarantees (which must be expressly designated as such in order to be deemed guarantees in the legal sense) and for claims under the German Product Liability Act (“Produkthaftungsgesetz”) remains unaffected.

    9. 12.9

      Any further liability is excluded.

  13. 13Amendments

    These Terms and Conditions shall be amendable by a commensurate agreement as follows: DeepL shall convey the modified terms and conditions prior to the planned entering into effect in the text-form and shall separately note the new provisions as well the date of the planned entering into effect. At the same time, DeepL shall grant the Customer a reasonable period of at least two (2) months in length to declare whether or not it shall accept the modified terms and conditions of use for the further provision of the services. If no declaration is made within this period, which shall commence running from the receipt of the notification in text-form, the modified terms and conditions shall be deemed as stipulated. DeepL shall separately advise the Customer at the commencement of the notice period as to this legal consequence, i.e., the right of objection, the objection period, and the implications of remaining silent.

  14. 14Complaints Procedure

    The EU Commission provides an online platform for online settlements (OS platform). It can be accessed at https://ec.europa.eu/consumers/odr/. DeepL is neither willing nor obliged to participate in a dispute settlement proceeding before a consumer arbitration board.

  15. 15Final Provisions

    1. 15.1

      Terms and conditions of the Customer shall not be part of this Agreement, unless DeepL has expressly agreed in written form.

    2. 15.2

      Amendments to this Agreement and any side agreements, including the Service Specification, the main body of this Agreement and any potential appendices, must be in written form. This also applies to a waiver of this written form clause.

    3. 15.3

      Customer may only settle claims against DeepL or claim a right of retention if its counter claim is uncontested, subject of a legally enforceable final judgment or the counter claim is in a mutual relationship to the respective affected claim.

    4. 15.4

      This Agreement shall be exclusively governed by the law of the Federal Republic of Germany excluding CISG and conflict of law provisions. In the event that the Customer is consumer in terms of Section 13 German Civil Code, mandatory statutory consumer regulations according to the law of the country where the consumer has his habitual residence shall remain unaffected.

    5. 15.5

      The exclusive legal venue for all disputes resulting from or in connection with this Agreement is Cologne, provided that the contracting parties are businesspeople (“Kaufleute”), or that the Customer has no general legal venue in Germany or in another EU Member State, or its permanent residence has moved to a foreign country after these conditions of use have entered into effect, or the residence or habitual domicile is not known at the time that the complaint was filed.

Last modified: 8 October 2018

DeepL Pro Technical Specification

  1. 1DeepL API

    The DeepL API is accessible through a REST interface. Request parameters are used to pass information to the API, results are returned in a suitable representation (e.g. JSON). Request parameters must be encoded in accordance with the documentation provided under https://www.deepl.com/docs-api.html. Authentication is based on fixed keys, SSL handling transport security. The translate function provides the following functionality:



    Text

    Text to be translated. Only plain text encoded in accordance with the documentation is supported.

    Source language

    Language of the text to be translated. Currently, the following languages are supported:

    • EN (English)

    • DE (German)

    • FR (French)

    • ES (Spanish)

    • IT (Italian)

    • NL (Dutch)

    • PL (Polish)

    • PT (Portuguese)

    • RU (Russian)

    If this parameter is omitted, the API will make efforts to detect the language of the text.

    Target language

    The language into which you want to translate. Can be one of the following

    • EN (English)

    • DE (German)

    • FR (French)

    • ES (Spanish)

    • IT (Italian)

    • NL (Dutch)

    • PL (Polish)

    • PT (Portuguese)

    • RU (Russian)



    The translate function returns the following representation of the processing result:



    Detected source language

    The language which has been detected for the source text.

    Text

    The translated text.



    The DeepL API is designed to translate up to 600 characters per minute and per customer; exceeding use may be limited and customers may encounter a 429 “Too Many Requests” error message, as described in the documentation.

    Applications using the API should implement a mechanism to handle such responses accordingly and, if appropriate, to try again later. A mechanism increasing the delay for another request exponentially is recommended.

  2. 2DeepL Pro Web Translator

    The DeepL Pro Web Translator offers a web page accessible by the customer using his DeepL Pro access credentials. The web page allows to input texts and receive their machine translations. As the DeepL Pro Web Translator uses the DeepL API for translating, it supports the set of source and target languages as described in Section 1.

    Within the DeepL Pro Web Translator, Customer's texts and their translations are stored only as long as necessary to create the translation and return it to the Customer, as described in point 3.6 of the Terms and Conditions.

    The DeepL Pro Web Translator does not impose limits on the length of the texts translated (contrary to the the free translator available at https://www.deepl.com/translator). However, browsers, their Javascript execution environment, and the HTTP transmission techniques used impose technical limits. The DeepL Pro Web Translator will try to notify the user about exceeding these limits and warn about possible performance issues.

    The DeepL Pro Web Translator allows the Customer to translate whole documents. Ability to translate documents is subject to the ability of DeepL Pro to correctly read and translate the documents, which can't be guaranteed.