Interview prep for every round.

Yes! Explore lessons, problems, snippets, and community content for free without creating an account. Create a free account to save progress, track analytics, and unlock additional features. Premium is a one-time payment for full access.

Yes. The AI Engineering track prepares you for interviews for roles that build with large language models: prompting and structured output, embeddings and retrieval, RAG, tool calling and agents, evaluation, security, and running AI features in production. Each question comes with a study guide, an interview question to answer with hints, a reference answer, and a rubric to score yourself. Interview Practice covers seven interview rounds, from the technical screen and live coding to AI system design and leadership scenarios, each with a timed mock interview.

Three groups: software engineers preparing for coding, system design, and behavioral rounds who now also face AI questions; engineers preparing for AI engineering roles that build LLM features, RAG, tool calling and agents, evaluation, security, and serving; and team and tech leads who adopt AI without being AI engineers, with the AI for Team and Tech Leads topic and a Leadership Scenarios interview round.

Web languages run in-browser instantly: Vanilla JS/TS, React, Vue, and static HTML/CSS/JS. With an account, you can also write and execute Python, Java, C, C++, Go, Ruby, and PHP using our compiler infrastructure.

Six tracks: Foundations (Big-O, recursion, memory), Data Structures (arrays, trees, graphs, hash maps), Algorithms (sorting, searching, dynamic programming, greedy), System Design (scalability, distributed systems, case studies), Behavioral Interviews (the STAR method, leadership, conflict), and AI Engineering (LLMs, RAG, agents, evaluation, production). Plus practice problems, code snippets, and question banks for interview prep.

Yes. CodeSnatch includes a dedicated System Design track with fundamentals, case studies, and advanced topics covering scalability, distributed systems, caching, databases, networking, and real-world architecture patterns. Each lesson is structured around the trade-offs interviewers actually probe.

Yes. The Behavioral Interview track teaches the STAR method, common competency questions, leadership principles, and how to structure stories that hit hiring signals. You get worked examples, practice prompts, and feedback patterns used by senior engineers at top companies.

CodeSnatch goes beyond problem grinding. You get structured lessons with interactive code labs, algorithm visualizations, AI-powered hints, real interview experiences from developers, a community where you can publish content, and the ability to monetize your expertise by selling problems, question bundles, and more. It's a complete ecosystem: learn, practice, share, and earn in one platform.

Yes! Premium members can publish paid community content like coding problems, question bundles, code snippets, and articles. You set your price, earn revenue when others purchase your content, and manage payouts from your wallet dashboard.

AI-powered hints and explanations are built into lessons and practice problems. You can ask for contextual guidance when stuck, without leaving the platform, and get AI feedback on your written AI Engineering answers. AI runs on your own Anthropic, OpenAI, or Google API key (see the next question), so you pay the provider directly at their published rates with no markup from us.

Yes, and it's the only AI path on CodeSnatch. Any authenticated user can plug in a personal Anthropic, OpenAI, or Google API key from the Settings page (Member or Premium, no upgrade required). AI requests are powered by your key and you pay the upstream provider directly at their published rates. Your key is stored only in your browser, transmitted to our server only as an encrypted per-request header, used in memory to issue that single provider call, and discarded afterwards. We never write your API key to a database, log, or analytics tool. You can remove the key at any time from Settings.

Nope! You can browse lessons, problems, community content, and use web playgrounds without an account. Create a free account when you want to save progress, use analytics, access the review queue, contribute to the community, or use compiler languages.

Premium is a one-time payment that unlocks all premium lessons and problems, every AI Engineering question, problem solutions and all hints, unlimited community contributions, the ability to create and sell paid content, premium avatars, and bonus compiler tokens.