NeetCode 150 Review: Is It Worth It in 2026?

NeetCode 150 Review: Is It Worth It in 2026?

TL;DR

• NeetCode 150 is one of the best curated problem lists for coding interview prep — well-organized, honest in scope, and completely free
• Every problem has a dedicated video walkthrough, which separates it from every other "top X problems" list available
• The list is fixed — it doesn't adapt to your skill gaps or tell you which topics are actually holding you back
• There's no feedback after your submission: code passes or fails, and you move on without real-interview-style questioning
• If you want practice that adapts to your weakest topics automatically → SkillFlow

You've probably seen NeetCode 150 recommended everywhere — Reddit threads, Discord servers, "how I got into Google" blog posts. It's become the de facto structured curriculum for coding interview prep.

The pitch is compelling: 150 carefully chosen problems, organized by pattern, each with a free video explanation. Finish these, understand them, and you're ready for almost any interview.

That's mostly true. But "mostly" is carrying real weight here. This review covers what NeetCode 150 actually is, what it does well, where its limits are, and whether it's sufficient for your interview goals in 2026.

What Is NeetCode 150?

NeetCode 150 is a curated list of 150 LeetCode problems organized across 18 core data structures and algorithm topics: Arrays & Hashing, Two Pointers, Sliding Window, Stack, Binary Search, Linked List, Trees, Heap/Priority Queue, Backtracking, Tries, Graphs, Advanced Graphs, 1-D Dynamic Programming, 2-D Dynamic Programming, Greedy, Intervals, Math & Geometry, and Bit Manipulation.

The problems are hosted on LeetCode. NeetCode's main contribution is the curation — selecting which problems best teach each pattern — and the video explanations, which cover every problem on the list through NeetCode's YouTube channel. The channel is genuinely excellent: clear explanations, good pacing, and walkthroughs that cover both intuition and implementation.

Progress tracking lives on neetcode.io, where you can mark problems as complete and follow the roadmap sequence. The basic tracker is free; NeetCode also offers a paid Pro tier with additional features and more problems.

NeetCode 150 vs. Alternatives at a Glance

What NeetCode 150 Gets Right

The curation is excellent

These aren't arbitrary picks. NeetCode 150 covers every major pattern that appears in real interviews — sliding window, monotonic stack, BFS/DFS, union-find, Dijkstra's, top-K with a heap, DP with memoization, backtracking, and more. The ordering within each topic section is logical: simpler problems establish the pattern before harder ones push it.

Importantly, the list is curated around patterns, not around specific company question banks. That's the right approach. Company question banks rotate. Patterns don't. If you can recognize that a problem requires sliding window and apply it cleanly, you'll handle variations you haven't seen before.

Video walkthroughs for every problem

Most "top 100 problems" lists leave you with community discussion threads of mixed quality. NeetCode records a walkthrough for every single problem — explaining the brute force, the insight that unlocks the optimal approach, and a complete implementation.

The production quality is high and the explanations are suitable for anyone who's seen the topic before and needs the problem-specific intuition unlocked. For candidates who learn by watching and then building, this is genuinely rare.

The structure eliminates decision fatigue

LeetCode's 3,000+ problems create paralysis. "What do I practice today?" becomes a 20-minute decision that ends with picking something comfortable. NeetCode 150 removes that entirely — follow the sequence, do the work, check it off. For most people, having a clear path forward is worth a lot by itself.

The scope is honest

NeetCode 150 doesn't pretend to cover everything. It covers the core algorithmic patterns that appear in the majority of technical interviews at top companies. That honesty about scope is more useful than platforms that promise comprehensive coverage and bury you in problems you'll never need.

Where NeetCode 150 Falls Short

It doesn't adapt to your skill level

NeetCode 150 is a fixed list in a fixed order. Whether you're already strong in dynamic programming or completely new to it, you follow the same sequence. The list has no mechanism to recognize that you've mastered two-pointer problems and should spend more time on advanced graphs.

This matters more than it sounds. The final 20% of improvement — closing your specific gaps in your specific weak topics — is what determines whether you pass a real interview. A static list can surface those gaps, but it can't automatically redirect your effort toward them.

No feedback after submission

You solve a problem, it passes the test cases, you watch the video, and you move on. Nobody asks why you chose a hash map over a sorted array. Nobody asks what happens if the input is nearly sorted or if there are duplicate values. Nobody probes whether you understand the time complexity of your approach or how you'd change it under different constraints.

Those are the questions a real interviewer asks. And most candidates discover — only in the actual interview — that their code works but they can't articulate their thinking clearly under pressure.

Progress tracking is a checkbox

NeetCode.io tracks which problems you've checked off. That's the entirety of the feedback loop. There's no measure of how your understanding of graph algorithms trends over four weeks of practice, no signal on whether you're improving on medium-difficulty problems, and no indicator of which topics are still holding you back heading into your interview.

Solved count is a vanity metric. It tells you how many boxes you checked, not how ready you are.

The problem set has a ceiling

NeetCode 150 is scoped to the most common patterns. Candidates targeting companies that push into harder territory — unusual DP optimizations, segment trees, number theory, advanced string algorithms — will exhaust NeetCode 150 and need to go elsewhere. It's an excellent foundation but not a ceiling.

What If You Want Adaptive Practice?

NeetCode 150 is a structured starting point. It answers "what patterns do I need to know?" It doesn't answer "which of those patterns am I actually weak in right now?"

SkillFlow is built for that second question. It tracks your proficiency across 10 core coding topics — Arrays & Strings, Linked Lists, Trees, Graphs, Dynamic Programming, and more — and selects your next problem based on where you're currently weakest. After you submit, an AI interviewer asks follow-up questions that probe whether you genuinely understand your solution: "Why did you choose this approach?" "What's the time complexity?" "How would you change this if the inputs were sorted?"

Your skill score (1–1000) updates after every session, giving you a real measure of trajectory rather than a solved count. It's not a replacement for NeetCode 150 — it's what you use alongside or after it when you want actual signal, not just completed checkboxes.

Honest Verdict

NeetCode 150 is worth it. It's one of the best free resources in coding interview prep, and the video walkthroughs alone justify the time investment. If you're looking for where to start — or where to find a structured curriculum that covers the core patterns — NeetCode 150 is the right answer.

But worth it doesn't mean sufficient for everyone.

Use NeetCode 150 if: you want a structured curriculum with video explanations for every major interview pattern. It's the best free, curated study guide available, and finishing it with genuine understanding puts you in a strong position for most technical interviews.

Go beyond NeetCode 150 if: you've completed (or are partway through) the list and still feel uncertain heading into interviews. Chances are you have specific topic gaps that the fixed sequence won't surface on its own. That's when adaptive practice — something that reacts to your actual performance — becomes the higher-leverage move.

Practice adaptively with SkillFlow — free, no credit card required →

Frequently Asked Questions

Is NeetCode 150 enough to get a FAANG job?

For many candidates, yes — with one important caveat. NeetCode 150 covers the core algorithmic patterns tested at FAANG companies, and candidates who can solve those problems and clearly explain their reasoning are well-prepared for most coding rounds. The gap is usually in the explanation — which is why drilling the "why" behind your approach matters as much as getting the right answer.

How long does it take to complete NeetCode 150?

Most dedicated candidates take 4–12 weeks depending on their starting skill level and daily practice time. Rushing through to check boxes is significantly less valuable than taking time to genuinely internalize each pattern. Two to four problems per day with real understanding tends to outperform ten problems per day of surface-level memorization.

Is NeetCode 150 better than just doing random LeetCode problems?

For most people, yes — considerably so. The structure and video explanations make NeetCode 150 a much more efficient path than unstructured LeetCode grinding. Picking problems randomly tends to mean picking comfortable ones. NeetCode 150 forces you through the patterns you might otherwise avoid.

Is NeetCode 150 free?

Yes. The NeetCode 150 problem list, progress tracker on neetcode.io, and all video explanations on YouTube are completely free. NeetCode does offer a paid Pro tier with additional problems and features, but everything needed for NeetCode 150 requires no payment.

What should I do after finishing NeetCode 150?

After finishing NeetCode 150, most candidates benefit from timed practice that simulates real interview pressure, follow-up questioning that forces verbal articulation of your approach, and targeted work on topics that still feel shaky. Identifying your actual weak spots — rather than repeating what you already know — is the highest-leverage next step before an interview.

Does NeetCode 150 cover all the topics I'll be tested on?

NeetCode 150 covers 18 topics and handles the vast majority of algorithmic patterns that appear in most technical interviews. It's lighter on system design (which is a separate interview type) and doesn't cover behavioral interviews. For the data structures and algorithms portion of a technical interview, the coverage is comprehensive across common difficulty ranges.