How do I run LeetCode problems locally in VS Code?

Clone the repo, npm install, install Vitest runner extension. Open a problem .js file, click debug on tests.

What's the best VS Code extension for LeetCode debugging?

"Jest/Vitest runner by firsttris" — attaches debugger to specific cases instantly.

Does this repo cover all LeetCode problems?

Blind 75 now, top 150 soon, expanding to 3K. Contribute your own tests!

Escape LeetCode's Paywall: This Open-Source JS Repo Lets You Debug Locally in VS Code

LeetCode's debugging magic? Locked behind a paywall. But one dev's open-source repo flips the script, letting you run JS problems locally with VS Code's full power.

theAIcatchup Apr 10, 2026 3 min read

VS Code interface debugging a LeetCode JavaScript problem with Vitest tests

⚡ Key Takeaways

Ditch LeetCode Premium: debug JS problems locally with VS Code and this open-source repo. 𝕏
Covers Blind 75 LeetCode tests out of the box, with Vitest for fast, attachable debugging. 𝕏
Empowers devs to own their practice — contribute tests, extend freely, no paywalls. 𝕏

Published by

theAIcatchup

Ship faster. Build smarter.

#JavaScript playground #LeetCode #LeetCode locally #VS Code debugging #VSCode #coding practice #debugging #javascript #open source LeetCode #vitest

Worth sharing?

Get the best Developer Tools stories of the week in your inbox — no noise, no spam.

Originally reported by dev.to

⚡ Key Takeaways

The 60-Second TL;DR

theAIcatchup

Share this article

Worth sharing?

Related Stories

98% of Websites Rely on JavaScript — Master Its Data Types or Fall Behind

JavaScript's Secret Execution Contexts: Why Your Code Ghosts You

Mock Coding Interviews Exposed: Why Verification Crushes Algorithms Every Time

Lodash Is Dead — Wake Up to These 5 JS Built-ins Slimming Your Code Right Now

Stay in the loop