3 competitions live right now

One challenge. Real rewards.

Skill-based competitions across coding, data science, AI and more. Solve real problems, climb a live leaderboard, and earn gems, credits and verified certificates — free to enter, open to every level.

Explore competitions How scoring works

Free to enter · Open to all levels · Live leaderboard

leaderboard — live04:11:28 left

MERN Stack Arena

LIVE

React.jsNode.jsMongoDBES6

01ARAarav R.12 / 12 solved982

02SNSneha K.12 / 12 solved941

03DMDmitri V.11 / 12 solved903

04YOYou11 / 12 solved861

05MJMeera J.10 / 12 solved840

312 competing · top 20 win rewardsEnter arena →

18k+Competitors

40+Challenges hosted

How it works

Three steps from entry to reward

Every challenge mirrors real-world work, so you're scored on skills that actually matter — not puzzle trivia.

Pick a challenge

Filter by skill, difficulty and window — from 1-hour sprints to week-long builds. Most are free and open to every level.

Compete and learn

Solve real tasks in the browser. Answer a question and the AI explains why it’s right — and why the other options are wrong. Scores update live and you can resubmit until the window closes.

Win rewards

When the window closes, results are finalised and winners announced. Top performers earn gems, credits and a verified certificate, and climb the all-time leaderboard.

Why compete

Practice that actually pays off

Competitions turn practice into proof — sharper skills, real rewards and a track record you can show off.

Win real rewards

Finish near the top and earn gems, credits and platform perks as you climb the leaderboard.

Real-world skills

Simulated job scenarios, not puzzle trivia. Debugging, trade-offs and shipping under a clock.

AI explains every answer

Answer a question and the AI breaks down why it’s right — and why the other options are wrong. You learn as you compete.

Verified certificates

Every finish adds a certificate with a unique verification code — ready for LinkedIn and your résumé.

Climb the leaderboard

Rank against players worldwide, track your progress and defend your spot on the all-time board.

Proof, not claims

Performance-based achievements on your record beat a bullet list of tools you’ve “worked with”.

Compete. Earn. Grow.

Every result earns you something

A finished competition isn't just a rank. Top performers walk away with gems, credits and a verified certificate — and everyone builds a track record that grows with each challenge.

Gems for every win

Place on the leaderboard and earn gems you can spend across the platform.

Credits that add up

Strong finishes top up your credits — unlock more challenges and features.

Verified certificates

Every completed competition adds a certificate with a unique verification code.

A growing track record

Scores, ranks and badges collect on one profile you can share anywhere.

Explore competitions

ARAarav Rao7 competitions · BengaluruVerified

1,240Gems

320Credits

Verified achievements

MERN Stack ArenaRank 4 of 312 · Jul 2026982 pts

DSA Challenge #1Rank 11 of 200 · Jul 2026840 pts

8 certificates earned

View wallet →

✦ Special competition type

Some competitions can get you hired

A few competitions run as Hiring Events. Perform well and recruiters review your results and résumé directly — top scorers get shortlisted and matched to open roles, no cold applications.

Verified skill profile

Your scores, ranks and certificates in one recruiter-facing view.

Get discovered

Top performers are surfaced to recruiters hiring in the event.

Skip the résumé pile

You’re judged on demonstrated skill, not keyword-matched CVs.

Matched to open roles

Strong results are matched to roles you fit — recruiters reach out to you.

Browse hiring events

✦ Hiring eventFrontend Hiring SprintLive

YOYouRank 4 of 312 · 982 ptsShortlisted

Matched to 6 open roles

Frontend EngineerReact DeveloperUI Engineer+3 more

3 recruiters reviewing your profile

View matches →

Domains

Hosted weekly across the stack

New categories are added regularly. If you build it, there's a challenge for it.

PythonJavaC++JavaScriptReact.jsNode.jsData science & analyticsMachine learningGenerative AIAlgorithms & DSADatabases & SQLCloud & DevOpsCybersecurityMobile development

FAQ

Questions, answered

Entry, eligibility, scoring, certificates and prizes.

How do the challenges work?

Each competition is a live, domain-specific contest where you solve real technical problems in the browser. You’re scored on correctness, code efficiency and — where relevant — the quality of your approach. Leaderboards update as submissions land.

Who can participate?

Anyone. Students, job seekers, career changers and working engineers all compete here, and challenges are tagged by difficulty so beginners have somewhere sensible to start.

Are competitions free?

Most are completely free to enter. A small number of flagship challenges carry an entry fee, always stated upfront on the competition page.

What do winners get?

Top performers earn gems and credits to spend on the platform, plus a verified certificate. Exact rewards are listed on each competition page.

What’s a hiring event?

Most competitions are purely for skills, rewards and certificates. A few are Hiring Events: perform well and recruiters review your results and résumé, and top scorers can be shortlisted and matched to open roles. Hiring events are clearly labelled.

How are winners decided?

On solution accuracy, efficiency, optimisation quality and completion time. Every competition publishes its scoring breakdown before you enter, and rankings are visible live.

Can I resubmit if my first attempt goes badly?

Usually yes — most challenges accept multiple submissions during the window, and your best score counts. Any submission limits are stated in the rules.

How do I start as a beginner?

Filter for “Beginner” or “Easy” and pick something short — a 1–7 day window is the gentlest introduction. Each challenge ships with a getting-started guide and a walkthrough of the submission flow.

What happens after a competition ends?

Once the window closes, results are finalised and winners announced, with certificates and points issued to top performers. Most challenges then publish solution discussions so you can study how the top performers approached it.

How do I prove achievements to employers?

Every completed competition earns a verified certificate with a unique verification code, and your profile collects all of it — rankings, scores and validated skills — in one link you can send to any recruiter.

New challenges live every week

Ready to prove it?

Join 18,000+ players testing their skills every week. Get ranked, earn rewards and collect certificates that prove what you can do.

Start competing Browse all competitions

No credit card required · Free competitions available