Contact Us

Email us

The best way to reach JLPT Lab is by email at [email protected]. We read every message and reply within 3 to 5 business days.

To help us respond faster, please include as much context as possible — the page URL you were on, the device or browser you were using, and a screenshot if it’s a visual issue.

What you can write to us about

• General questions about how to use the site.
• Bug reports — something is broken, misbehaving, or showing the wrong information.
• Content corrections — incorrect translations, mislabelled JLPT levels, broken audio, or typos.
• Feature suggestions — what would make JLPT Lab more useful for the way you study.
• Account help — login problems, deletion requests, or data exports.
• Business and partnership inquiries.
• Press, interviews, and academic research requests.

Before you write

You can often find answers more quickly in these places:

• About — what JLPT Lab is and how it works.
• Privacy Policy — how we collect, use, and protect your data.
• Terms of Service — the rules that govern your use of the Service.

Privacy and data requests

If your message concerns personal data — access, correction, deletion, or any other right described in our Privacy Policy — please write to [email protected] with "Privacy request" in the subject line. We will respond within the timeframes required by applicable law.

Response times

JLPT Lab is operated by a small independent team. We aim to reply to all messages within 3 to 5 business days. During busy periods (typically the weeks before each JLPT sitting in July and December), replies may take a little longer. Thank you for your patience.