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LeetTest

3.9(

22 ratings

)
ExtensionTools2,000 users
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Overview

LeetCode Test Case Generator

Stop hand-writing testcases. LeetTest generates fresh random inputs for the LeetCode problem you're on and pastes them straight into the Testcase tab, so you can hit Run and see how your solution handles cases you didn't think of. WHAT IT DOES ★ One-click random testcases Open a problem, click Generate Testcases, and LeetTest fills the Testcase tab with 8 new cases in the problem's input format. It switches to the Testcase tab and Source view for you, even if LeetCode left you on Test Result. ★ Numeric difficulty ratings "Medium" covers a lot of ground. LeetTest adds a contest-based numeric rating next to Easy / Medium / Hard (for example "Medium - 1486"), so you know how hard a problem really is. Problems without a rating show "Not found". ★ Company tags See which companies have asked the problem, right under the title, without LeetCode Premium. ★ Your settings Hide difficulty entirely to practice without bias, or turn the numeric rating and company tags on and off. Changes apply to open LeetCode tabs instantly. ★ Report bad testcases in two clicks Generators are built per problem, and occasionally can miss a constraint. If a set looks wrong, hit the report button and pick what went wrong. Reported problems get their generator rebuilt, so every report makes it better for everyone. Works on Chrome and Firefox. PRIVACY LeetTest has no accounts and never reads your code. To fetch ratings and testcases, it sends only the name of the problem you're viewing (for example "two-sum") and the extension version to the LeetTest server. Reports send the problem name and the reason you picked. Your settings stay in your browser. Feedback and ideas are welcome: leave a review or open an issue on GitHub.

Details

  • Version
    2.0.1
  • Updated
    October 21, 2026
  • Offered by
    Edison Chen
  • Size
    130KiB
  • Languages
    English
  • Developer
    Email
    edisonqiwuchen@gmail.com
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

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The developer has disclosed that it will not collect or use your data. To learn more, see the developer’s privacy policy.

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes
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