Terms of Service

The purpose of these Terms is to define the rights, obligations, responsibilities, and other necessary matters between the Company and the User in connection with the use of SDK.ac, a collection of free, browser-based AI utility tools provided by the Company. Any matter not stipulated in these Terms shall be governed by the relevant laws of the Republic of Korea — including the Act on the Consumer Protection in Electronic Commerce, the Act on Promotion of Information and Communications Network Utilisation and Information Protection, and the Personal Information Protection Act — by generally accepted industry practice, and by applicable international law.

For the purposes of these Terms, the following definitions apply: - "Company" means SDK Co., Ltd., a corporation established under the laws of the Republic of Korea, with business registration number 871-81-03242 and e-commerce sales registration number 2024-고양일산서-1820, located at 4F, 127 Namseong-ro, Jeju-si, Jeju Special Self-Governing Province, Republic of Korea. - "Service" means the website hosted at https://sdk.ac, all subdomains, and all tools, content, guides, and related materials made available by the Company thereon. - "User" means any individual or entity that accesses or uses the Service. The Service requires no registration; every visitor is a User. - "Tools" means the AI-assisted utilities provided through the Service, currently including the AI translator, text summarizer, prompt generator, image prompt builder, code explainer, email writer, hashtag generator, and writing assistant, and any tools added later. - "User Input" means any text, code, or other material a User enters into a Tool. User Input is processed in the User's browser and is not transmitted to or stored on the Company's servers. - "AI Output" means any prompt, text, or other result produced by a Tool from User Input, as well as any content subsequently generated by a third-party AI service from a prompt created with a Tool.

(1) The Company shall post these Terms on the Service so that Users can readily review them at any time. (2) The Company may amend these Terms to the extent that the amendment does not violate applicable law. When the Company amends the Terms, it shall post the amended Terms on the Service, together with the effective date and the reasons for the amendment, no less than seven (7) days before the effective date. Where the amendment is disadvantageous or material to Users, the Company shall post the notice at least thirty (30) days before the effective date. (3) A User who does not agree to an amendment may discontinue use of the Service before the effective date. A User who continues to use the Service on or after the effective date shall be deemed to have accepted the amended Terms.

(1) The Company provides the Service free of charge, funded by advertising, on an "as available" basis. The Service includes, without limitation: - Eight AI-assisted Tools: an AI translator, a text summarizer, a prompt generator, an image prompt builder, a code explainer, an email writer, a hashtag generator, and a writing assistant; - Practical guides and reference articles on using AI models effectively; - Multilingual support across nine interface languages. (2) The Tools execute their logic in the User's browser. Where a Tool produces a prompt intended for an external AI assistant (such as ChatGPT, Claude, or Gemini), the User's use of that external service is governed by that provider's own terms, not by these Terms. (3) The Service is in principle available 24 hours a day, 365 days a year, except during scheduled maintenance, emergency repairs, telecommunications or infrastructure-provider outages, force-majeure events, or other circumstances beyond the Company's reasonable control.

(1) The User may use the Service anonymously and without registration, for lawful personal or internal-business purposes, in accordance with these Terms and applicable law. (2) Use of the Service commences when the User accesses the Service; no separate application or approval procedure applies. (3) The User acknowledges that User Input is processed entirely on the User's own device and does not reach the Company's servers, and that the Company therefore cannot recover, restore, or delete User Input on the User's behalf. (4) The User shall comply with any operational policies, usage notices, and precautions that the Company posts on the Service, including the notes on AI limitations displayed on each Tool page.

The User shall: (1) Comply with applicable laws, these Terms, and any usage guidance posted on the Service; (2) Independently verify the accuracy, legality, and suitability of any AI Output before relying on it or publishing it, as further described in Article 10; (3) Ensure that the User holds all rights necessary to any text, code, or other material the User enters into a Tool, and that such entry does not infringe the rights of any third party or breach any duty of confidentiality; (4) Not misrepresent AI Output as independently verified fact, professional advice, or the work of a human expert where such representation could mislead others; (5) Bear sole responsibility for the consequences of the User's use of the Service and of any AI Output, including its publication, distribution, or commercial use; (6) Not interfere with the operation of the Service or damage the reputation of the Company or of other Users.

The User shall not engage in any of the following: (1) Using the Tools to create, refine, or optimise content that is illegal, fraudulent, defamatory, harassing, hateful, discriminatory, sexually exploitative, or that promotes violence or self-harm; (2) Using the Tools to produce deceptive content, including phishing messages, scam emails, disinformation intended to mislead the public, or impersonation of any person or organisation; (3) Using the Tools to facilitate infringement of copyright, trademark, trade-secret, privacy, or publicity rights of any third party; (4) Accessing or attempting to access the Service by abnormal means, including automated scraping, bulk crawling that exceeds what robots.txt permits, or circumvention of technical protections; (5) Transmitting or distributing viruses, malware, or any code designed to disrupt or damage the Service or third-party systems; (6) Interfering with advertising, analytics, security features, or other technical components of the Service, or artificially generating ad impressions or clicks; (7) Imposing an unreasonable load on the Service infrastructure or materially degrading the experience of other Users; (8) Reselling, sublicensing, or misrepresenting the Service itself as the User's own product or service; (9) Any other act that violates applicable law, public order, or good morals. If the Company reasonably determines that a User has engaged in a prohibited activity, the Company may, with or without prior notice, restrict or block the User's access (for example by rate-limiting or IP blocking) and, where required, refer the matter to law-enforcement authorities. A User subject to such a measure may object in writing to contact@sdk.ac, and the Company shall review the objection in good faith within fourteen (14) days.

(1) The Company may add, modify, or remove any Tool or feature of the Service at its discretion in order to improve the Service, respond to changes in AI technology, or comply with law. Where a change is material, the Company shall give reasonable advance notice on the Service. (2) The Company may temporarily suspend the Service, in whole or in part, in any of the following cases: routine or emergency maintenance; failure of telecommunications, power, hosting, or CDN services; a surge in traffic exceeding infrastructure capacity; force-majeure events such as natural disaster or war; or other operational causes that make normal provision of the Service impractical. The Company shall give advance notice of planned suspensions and prompt after-the-fact notice of unplanned ones. (3) The Company may permanently discontinue all or a material part of the Service for legitimate business reasons, with no less than thirty (30) days' prior notice posted on the Service. (4) Because the Service is provided free of charge and stores no User accounts or User Input, the Company shall not be liable to compensate Users for modification, suspension, or discontinuation of the Service, except where caused by the Company's wilful misconduct or gross negligence, or as otherwise required by mandatory law.

(1) All rights, title, and interest in and to the Service — including its design, layout, branding, logos, source code, guides, and editorial content — belong to the Company or its licensors and are protected by the copyright, trademark, and other intellectual-property laws of the Republic of Korea and other jurisdictions. (2) The Company grants the User a limited, non-exclusive, non-transferable, revocable licence to access and use the Service for personal or internal-business purposes. The User shall not reproduce, distribute, publicly transmit, or create derivative works from the Service's editorial content, nor use it for training machine-learning models, without the Company's prior written consent. (3) User Input remains entirely the User's. Because User Input never reaches the Company's servers, the Company claims no licence to, and has no access to, User Input. (4) As between the Company and the User, the Company claims no ownership of AI Output, and the User may use AI Output for personal or commercial purposes at the User's own responsibility. The User acknowledges, however, that (i) the copyright status of AI-generated content varies by jurisdiction and may be limited or unavailable, (ii) similar or identical output may be generated for other users, and (iii) third-party AI services used with a generated prompt may impose their own terms on the resulting content.

(1) AI Output may be inaccurate. The Tools and the third-party AI models they are designed to be used with are based on statistical language technology. AI Output may contain factual errors, fabricated information presented with confidence ("hallucinations"), outdated information reflecting a model's training cutoff, mistranslations, faulty code, or reasoning mistakes. (2) AI Output may be biased. AI models learn from large bodies of human-created text and can reproduce or amplify social, cultural, and linguistic biases present in that data. AI Output should not be treated as neutral or authoritative. (3) Duty to verify. The User must independently review and verify all AI Output before relying on it, publishing it, submitting it, or otherwise acting upon it. In particular, AI Output shall not be relied upon as a substitute for professional advice in legal, medical, financial, tax, safety-critical, or other specialised matters; the User must consult a qualified professional for such matters. (4) No warranty. The Company makes no representation or warranty of any kind regarding the accuracy, completeness, reliability, legality, non-infringement, or fitness for any particular purpose of any AI Output, whether produced by a Tool or by a third-party AI service using a prompt created with a Tool. (5) User responsibility. The User bears sole responsibility for any decision made, action taken, content published, or damage incurred in reliance on AI Output. To the maximum extent permitted by law, the Company shall not be liable for any loss or damage arising from a User's reliance on AI Output that the User failed to verify.

(1) The Service is provided "as is" and "as available", without warranties of any kind, express or implied, including warranties of merchantability, fitness for a particular purpose, non-infringement, accuracy, and uninterrupted availability, to the maximum extent permitted by applicable law. (2) The Company shall be exempt from liability for failure to provide the Service caused by force majeure, including natural disaster, war, terrorism, epidemics, telecommunications failure, or governmental action, or by causes attributable to the User. (3) The Company shall not be liable for: (i) the substance, accuracy, or consequences of any AI Output; (ii) the acts, policies, availability, or output of third-party AI services (such as ChatGPT, Claude, Gemini, Midjourney, or Stable Diffusion) into which the User pastes a generated prompt; (iii) products or services advertised on the Service by third parties, with respect to which any transaction is solely between the User and the advertiser; (iv) loss of expected profit, loss of data kept only on the User's device, or damage arising from materials obtained through the Service. (4) Except in cases of the Company's wilful misconduct or gross negligence, the Company shall not be liable for any indirect, incidental, special, consequential, or punitive damages arising out of or in connection with the use of, or inability to use, the Service. (5) Nothing in these Terms excludes or limits any liability that cannot be excluded or limited under applicable law, including liability arising from the Company's wilful misconduct or gross negligence.

(1) The Company shall prioritise the fair and prompt handling of legitimate opinions and complaints raised by Users. Complaints may be submitted to contact@sdk.ac, and the Company shall endeavour to respond within fourteen (14) days of receipt. (2) These Terms and the use of the Service shall be governed by and construed in accordance with the laws of the Republic of Korea, without regard to conflict-of-laws principles. (3) Any lawsuit between the Company and a User arising out of the Service shall be brought before the competent court under the Civil Procedure Act of the Republic of Korea. Where the User is a consumer, nothing in this Article deprives the User of the protection of mandatory consumer-protection provisions, including any right to bring or defend proceedings in the forum prescribed by such provisions. (4) Users may also seek redress through the Korea Consumer Agency or the Electronic Commerce Dispute Mediation Committee, and Users residing in the European Union may use the European Online Dispute Resolution platform at https://ec.europa.eu/consumers/odr.

(1) These Terms take effect on 2025-01-15 and were last amended on 2026-07-02. The amended Terms supersede all prior versions. (2) For questions about these Terms, contact contact@sdk.ac. - Operator: SDK Co., Ltd. - Business Registration Number: 871-81-03242 - E-Commerce Sales Registration: 2024-고양일산서-1820 - Address: 4F, 127 Namseong-ro, Jeju-si, Jeju Special Self-Governing Province, Republic of Korea - Contact: contact@sdk.ac