Practice Algorithms.
Ace Your Interview.
The zero-friction platform where junior developers sharpen their problem-solving skills — no sign-up required.
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Built by developers,
for developers.
We're a small team who remember how tough it was to break into the industry. The endless LeetCode grind, the confusing platforms, the paywalls. We built SkillsCheck because we believe practicing should be as simple as opening a browser.
No accounts. No tracking. No distractions. Just you, a code editor, and a problem to solve.
const developer = {
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Zero Friction
No sign-up, no login, no setup. Pick a difficulty, get a challenge, and start coding in seconds.
Real Execution
Your code runs against real test cases on a secure backend. Get instant feedback — Accepted, Wrong Answer, or Runtime Error.
Interview Ready
Challenges modeled after real technical interviews. Practice the patterns that actually come up — arrays, strings, trees, graphs, and more.
Pick a difficulty
Choose from Easy, Medium, or Hard. A random challenge from that pool is loaded instantly.
Write your solution
Code in a full-featured Monaco editor with syntax highlighting, autocomplete, and multiple language support.
Hit Run & get results
Your code is executed against test cases in real time. See exactly what passed, what failed, and why.
Ready to prove yourself?
No account. No paywall. Just open it and start coding.