Legal
Last updated: August 10, 2026
LeetDesign (leetdesign.com) is a practice platform for system design interviews. You build architecture diagrams against practice problems and an automated grader scores them. By using the site you agree to these terms. If you do not agree, do not use the site.
The grader is an automated practice tool. Scores are heuristic feedback, not professional advice, and we make no promises about interview or hiring outcomes.
You can browse problems, read solutions, and build designs without an account. Grading, submission history, and publishing require one. You must be at least 13 years old to create an account. Keep your credentials secure: activity under your account is your responsibility. We may suspend or terminate accounts that violate these terms.
You own the designs you build and the comments you write. When you publish a design or post a comment, that content becomes publicly visible under your profile (your username, plus your display name and photo if you signed in with Google), and you grant us a non-exclusive, worldwide, royalty-free license to host, display, and distribute it as part of operating the site. Votes affect a design's public score but are never shown under your name. If you want a published design taken down, email us and we will remove it.
Do not post content that is unlawful, infringing, deceptive, harassing, or spam. We may remove content that violates these terms.
The problems, reference solutions, grading logic, and everything else that makes up the site belong to LeetDesign. You may use them for your own interview preparation. You may not scrape, bulk download, resell, or republish them.
Do not attempt to disrupt the service, probe or breach its security, access other users' accounts or data, impersonate others, or use automated tools to scrape the site or flood it with traffic.
The service is provided "as is" and "as available", without warranties of any kind, express or implied. We do not guarantee that the site will be uninterrupted, error-free, or that scores, solutions, or other content are accurate or fit for any particular purpose.
To the maximum extent permitted by law, LeetDesign will not be liable for any indirect, incidental, special, consequential, or punitive damages, or any loss of data, opportunities, or profits, arising from your use of the site. Our total liability for any claim relating to the service is limited to the amount you paid us in the twelve months before the claim (currently zero, as the service is free).
You can stop using LeetDesign at any time and can request deletion of your account by contacting us. We may suspend or terminate access for violations of these terms. Sections 3 through 7 survive termination.
LeetDesign is an evolving product: we may change, suspend, or discontinue any part of the service at any time, and features that are free today may become paid in the future. We may also update these terms. The date at the top of this page reflects the latest revision, and continued use of the site after a change means you accept the revised terms.
These terms are governed by the laws of the State of California, United States, without regard to conflict of law rules.
Questions about these terms: support@leetdesign.com. If you believe content on LeetDesign infringes your copyright, email the same address with the content's URL and the work you believe is infringed, and we will review and remove infringing content. See also our Privacy Policy.