Terms of Service

1. Acceptance of Terms

These Terms of Service ("Terms") govern your access to and use of the website jlptlab.com and any related services, content, and features (collectively, the "Service") operated by JLPTLab ("we", "us", or "our").

By accessing or using the Service, you agree to be bound by these Terms and our Privacy Policy. If you do not agree, you may not use the Service.

JLPTLab is operated by an independent sole proprietor.

2. Description of the Service

JLPTLab is an online Japanese-language learning platform. It provides vocabulary and grammar references aligned with JLPT levels N5 to N1, together with related study features such as example sentences, audio resources, spaced-repetition flashcards (SRS), and articles.

Features may be added, modified, removed, or made available to different groups of users at any time. Some features may be offered free of charge; others may require registration or a paid purchase or subscription.

3. Eligibility and Accounts

To create an account and use certain features, you must:

• Be at least 13 years old, or older if your country sets a higher minimum age for consenting to the processing of personal data (for example, 16 in some EU countries).
• Provide accurate and current registration information and keep it up to date.
• Keep your password confidential and not share your account with others.
• Promptly notify us of any unauthorised access or security incident involving your account.

4. Acceptable Use

You agree not to:

• Use the Service for any unlawful purpose or in violation of these Terms or applicable laws.
• Scrape, harvest, or otherwise extract data from the Service through automated means without our prior written consent.
• Reverse-engineer, decompile, or attempt to derive source code or underlying ideas of the Service, except to the extent permitted by law.
• Interfere with, disrupt, or place an unreasonable load on the infrastructure or networks underlying the Service.
• Attempt to gain unauthorised access to any portion of the Service, other users’ accounts, or related systems.
• Use the Service to transmit malware, spam, or any harmful content.
• Impersonate another person or misrepresent your affiliation with any person or entity.
• Use the Service to develop a competing product or republish substantial portions of our content.

5. User-Submitted Content

The Service may allow you to submit content such as notes, custom flashcard decks, or comments ("User Content"). You retain ownership of your User Content.

By submitting User Content, you grant JLPTLab a worldwide, non-exclusive, royalty-free license to host, store, reproduce, modify (for technical purposes such as formatting), and display your User Content as necessary to operate and provide the Service.

You are solely responsible for your User Content and represent that you have all rights necessary to grant the above license. We may remove User Content that violates these Terms or applicable law.

6. Intellectual Property

Except for User Content and third-party data noted below, all content on the Service — including text, graphics, logos, audio, code, and the overall design — is owned by JLPTLab or our licensors and is protected by copyright, trademark, and other intellectual-property laws.

Portions of the dictionary data are derived from the JMdict / JMdict_Extended project, which is licensed by the Electronic Dictionary Research and Development Group under a Creative Commons Attribution-ShareAlike license. We use this data in accordance with that license.

Kanji data is derived from KANJIDIC2 (Electronic Dictionary Research and Development Group, Creative Commons Attribution-ShareAlike 4.0). Kanji stroke order data comes from KanjiVG by Ulrich Apel (kanjivg.tagaini.net, Creative Commons Attribution-ShareAlike 3.0). Kanji parts come from RADKFILE and KRADFILE (Michael Raine, James Breen and the Electronic Dictionary Research and Development Group, Creative Commons Attribution-ShareAlike 4.0). Handwriting lookup is based on Kanji Canvas by Dominik Klein (github.com/asdfjkl/kanjicanvas, MIT License). Kanji JLPT levels are unofficial and based on Jonathan Waller's JLPT lists (Creative Commons Attribution).

You may use the Service for personal, non-commercial study. You may not reproduce, distribute, modify, create derivative works of, publicly display, or commercially exploit any of our content without our prior written permission, except as expressly permitted by these Terms or applicable law.

7. Subscription and Payments

Certain features of the Service are offered on a subscription basis ("Premium"). Subscription terms, pricing, and renewal policies are presented at the time of purchase and on our Pricing page.

You must be at least 18 years old and have reached the age of majority where you live to purchase a subscription. In some countries the age of majority is higher than 18 (for example, 19, 20, or 21). By purchasing, you confirm that you meet this requirement.

Subscriptions automatically renew until cancelled. You may cancel at any time; cancellation takes effect at the end of the current billing period unless otherwise stated.

Payments are processed by Polar, acting as the Merchant of Record. Your order confirmation, invoice, and card statement will show Polar. By making a purchase, you also agree to Polar's consumer terms.

If the price of your subscription changes, we will notify you by email at least 14 days before your next renewal.

Refunds are governed by our Refund Policy, available at jlptlab.com/refund-policy, and applicable consumer-protection laws. Taxes may apply based on your location.

8. Third-Party Services and Links

The Service integrates with or links to third-party services such as Google (AdSense, Analytics, OAuth), Microsoft Clarity, Cloudflare, and AI providers used by the Sentence Analyzer. We do not control these third-party services and are not responsible for their content, terms, or privacy practices.

Your use of third-party services is governed by the terms of those providers.

9. Educational Use Only; No Guarantees

JLPTLab is an educational reference tool and is not affiliated with the Japan Foundation, JEES, or any official JLPT examining body. Information and study materials are provided for general educational purposes and do not guarantee any particular exam result.

While we strive for accuracy, we do not warrant that translations, grammar explanations, audio, or other content are free from errors. You should not rely on the Service as the sole source for high-stakes decisions.

10. Disclaimer of Warranties

THE SERVICE IS PROVIDED ON AN "AS IS" AND "AS AVAILABLE" BASIS WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, OR ACCURACY.

We do not warrant that the Service will be uninterrupted, secure, or free from errors, viruses, or other harmful components, or that defects will be corrected.

11. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, JLPTLAB AND ITS OWNERS, OPERATORS, AND CONTRIBUTORS SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR ANY LOSS OF PROFITS OR REVENUES, WHETHER INCURRED DIRECTLY OR INDIRECTLY, OR ANY LOSS OF DATA, USE, GOODWILL, OR OTHER INTANGIBLE LOSSES, ARISING FROM YOUR USE OF OR INABILITY TO USE THE SERVICE.

IN NO EVENT SHALL OUR AGGREGATE LIABILITY FOR ANY CLAIM RELATED TO THE SERVICE EXCEED THE GREATER OF (A) THE AMOUNT YOU PAID US IN THE TWELVE MONTHS PRECEDING THE CLAIM OR (B) USD $50.

Some jurisdictions do not allow the exclusion or limitation of certain damages; in such cases, the limitations in this section apply to the maximum extent permitted by law.

12. Indemnification

You agree to indemnify, defend, and hold harmless JLPTLab and its affiliates from and against any claims, liabilities, damages, losses, and expenses (including reasonable legal fees) arising out of or related to your use of the Service, your User Content, or your violation of these Terms or any applicable law.

13. Termination

We may suspend or terminate your access to the Service at any time, with or without notice, if we reasonably believe you have violated these Terms or pose a security or legal risk.

You may stop using the Service at any time. To delete your account, contact us at [email protected]; deletion and anonymisation are handled as described in our Privacy Policy.

Sections that by their nature should survive termination — including intellectual-property rights, disclaimers, limitations of liability, indemnification, and governing law — will survive.

14. Changes to the Service or Terms

We may modify or discontinue any part of the Service at any time. We may also update these Terms from time to time. When we make material changes, we will revise the Effective Date at the top of this page and, where appropriate, provide additional notice.

Continued use of the Service after changes take effect constitutes acceptance of the updated Terms. If you do not agree to the updated Terms, you must stop using the Service.

15. Governing Law and Disputes

These Terms are governed by the laws of the Republic of China (Taiwan), without regard to its conflict-of-laws rules.

Any dispute arising from or relating to these Terms or the Service shall be brought exclusively before the Taiwan Taipei District Court as the court of first instance, unless mandatory consumer-protection laws in your jurisdiction provide otherwise.

16. Miscellaneous

If any provision of these Terms is held invalid or unenforceable, the remaining provisions will remain in full force and effect. Our failure to enforce any right or provision of these Terms will not be considered a waiver of those rights.

These Terms, together with our Privacy Policy, constitute the entire agreement between you and JLPTLab regarding the Service and supersede any prior agreements.

17. Contact Us

If you have any questions about these Terms, please contact us at [email protected].