Free · no account, no email
One page holding the whole free offer, so you are never guessing which part is behind a paywall. None of it is. There is no login wall on any lesson, no trial that expires and no email required to see an answer.
4 courses · 33 lessons · 2 practice sets · 2 calculators · 5 round guides
Courses
Each lesson explains the mechanism, shows code you can run, names the trap an interviewer reaches for, and ends with the few sentences worth carrying into the room.
Short course · Beginner to intermediate
Embeddings, RAG and LLM internals — explained at the depth an interview panel expects, not at the depth a research paper expects.
Language · Beginner to intermediate
Twelve lessons that take you from how the interpreter works to the six patterns behind most coding-round questions. Written to be read once and remembered.
Short course · Beginner to intermediate
Three lessons on what a reviewer actually opens, what they check in ninety seconds, and the JavaScript questions that follow.
Language · Beginner to intermediate
Twelve lessons from the JVM to the Collections framework, written around the questions service companies actually ask in the technical round.
Round guides
Written for the student who does not yet know which round they are weakest in — including where most of a batch gets filtered out, and what to do about it.
Practice sets
An explanation for every option, right or wrong, and your weakest topics named at the end. Nothing is stored against you and nothing asks for an email first.
Eight questions on the JavaScript that frontend interviews actually test — closures, the event loop, this, equality and re-renders.
Topics: Closures · Event loop · this · Equality · Immutability · Re-renders · Async · Review
Fifteen questions in the style of a screening round — LLM basics, embeddings, RAG and prompting. Marked instantly, with an explanation for every answer.
Topics: LLM fundamentals · Embeddings · RAG · Prompting
Aptitude, coding, DBMS and SQL sets are being written to the same standard — every question is checked so that the set cannot be answered without reading it.
Calculators
They run entirely in your browser. Nothing you type is sent anywhere.
Turn a CTC offer into the money that actually reaches your bank account each month.
Convert CGPA to percentage on the multiplier your university actually uses.
That line is drawn where the cost is, not where the value is. A multiple-choice set can be marked in a browser with nothing behind it, so those are free here. Running your code against hidden test cases needs a real sandbox and a queue; a spoken interview needs a model listening in real time. Those live inside the platform.
Free to learn · paid to be measured
Every lesson on this site is free and needs no account. What a subscription buys is the graded practice, the full-length mocks, the spoken AI interviews and a readiness score you can act on.