SkillNexa watches you actually write code — on our servers, against tests you never see — and turns it into one number an employer can check. No videos to sit through. No certificate nobody reads.
Free to learn and be graded. You only pay when you want the profile that proves it.
Waiting
Frontend readiness
+0.0
added to your score
Why this exists
A recruiter reading two hundred CVs cannot tell who watched the videos and who can actually build the thing. So they stop reading and filter by college. That is the whole problem, and no amount of course completion fixes it — because completing a course is not evidence of anything.
Evidence is code that ran, against tests you could not see, written in your own hands, explained in your own words.
How you learn
Beginners rarely get stuck on syntax. They get stuck on not being able to picture what the machine is doing. Every session animates the idea step by step — press play.
How a hash map finds the pair in one pass
Step 1 of 3
numbers
Start at the first number. Nothing has been seen yet.
We need two numbers that add to 9.
This is the real player from inside a session — under 2KB, no video, instant on mobile data.
What makes a pass mean something
Your code runs on our servers against cases you never see. An answer that only fits the two examples on screen does not pass — exactly like a real screening round.
Everyone has an AI that will write the answer. We measure how the answer arrived — corrections, pauses, false starts — and publish that share openly rather than hiding it.
After you pass, one question: why does your solution work? Marked on the ideas, never the English. Trial and error passes tests; it does not survive this.
What is inside
Choose a role and the modules, sessions and tasks that lead there are built for you — not a playlist you have to assemble yourself.
Nobody clicks "I need a hint". So when the same error repeats, or the editor goes quiet after a failure, help arrives on its own — the smallest nudge, never the answer.
535 problems across DSA, CS fundamentals, DBMS, languages and system design. Full statements, worked approaches, and the recent ones first.
Drafted from the skills you actually proved and the projects you actually shipped. It invents nothing — that is the point.
Not a completion percentage. A readiness figure per role that falls if you stop practising, because a skill unused for two months is not a skill you can claim.
Colleges get a live view of who is ready for which drive, so preparation stops being invisible until results day.
41
career roles
4,900+
sessions, each with one graded task
535
interview problems
10
languages run on our servers
Pick your role, write your first line today, and watch one number move that an employer can actually check.