Terms of use
Plain terms for using Cloze, on this website and in the Chrome extension. By using Cloze you agree to them.
Using Cloze
Cloze is free to use, with an account or without one. Practise as much as you like. Do not use it in a way that harms the service or other people: no attempts to break in, to overload it, or to reach someone else's account, and no automated copying of the site or its API.
Your account
An account needs an email address of your own, and you keep its password to yourself. One account is for one person. You can delete yours at any time on your account page. We may suspend or close an account that breaks these terms.
Premium
Some quests are for premium accounts. Premium is not on sale yet; when it is, what it costs and what it includes will be on this page before you pay.
What belongs to whom
Problem statements belong to LeetCode: Cloze links to them, and writes its own tasks, tests and solutions. The code you write is yours. It runs in your browser and is never sent to us; Privacy says what is kept.
No guarantees
Cloze is offered as it is. We work to keep its solutions and tests right and the site running, but cannot promise either, or any result in an interview. Cloze may change, and a feature, or the service itself, may stop.
Changes to these terms
When these terms change, this page changes with them, and says when. They were last changed on 15 October 2026.