90+ courses with AI voice coaching. Browse by domain or start learning immediately.
KairosLearn offers 90+ interactive online courses spanning Computer Science, Language Learning, Religious Studies, Philosophy, Finance & Business, Health & Wellness, and Political Strategy. With 2544+ lessons, learners can study everything from Python and system design to Islamic studies, Stoic philosophy, meditation, and investing. 27 courses are completely free with AI voice coaching.
Four flagship courses with full interactive lessons, AI voice coaching, and hands-on exercises. New to the platform? Pick one and dive in.
Master 16 essential coding patterns to solve any interview question. Each pattern includes detailed explanations, visual walkthroughs, and hands-on Python exercises with an in-browser IDE.
Learn Python from scratch. 10 modules covering variables, control flow, functions, data structures, OOP, and real projects — all with hands-on exercises.
Learn how to design large-scale distributed systems. Covers fundamentals, key concepts, and 10 real-world system design case studies with detailed architecture diagrams and trade-off analysis.
Master the foundations of AI and machine learning from scratch. Build linear regression, logistic regression, neural networks, CNNs, and NLP pipelines using only NumPy — no frameworks, just understanding.
Master modern JavaScript from closures and the event loop to ES2024 features, design patterns, TypeScript, and everything you need to ace technical assessments.
Master Next.js App Router from routing and layouts to Server Components, Server Actions, caching, image optimization, and production authentication.
Advanced Node.js — event loop internals, streams, Worker Threads, clustering, production Express patterns, testing with Jest/Supertest, and security hardening.
Master SQL from fundamentals to advanced — JOINs, aggregations, window functions, CTEs, indexes, query optimization, transactions, and PostgreSQL-specific features.
Master TypeScript from structural typing and advanced generics to production patterns with Zod, tRPC, decorators, and compiler internals. Built for engineers who want to think in types, not just compile.
Master containerization from Dockerfile basics to production Kubernetes clusters. Covers Docker, Docker Compose, K8s architecture, Helm, CI/CD pipelines, RBAC security, and observability.
From NumPy arrays to deployed ML models. Master pandas, matplotlib/seaborn, data cleaning, feature engineering, and scikit-learn through a complete end-to-end house price prediction project.
From bias-variance fundamentals to PyTorch neural networks and production MLOps. Master supervised learning, clustering, dimensionality reduction, and deploy models that survive real-world data drift.
From IAM and VPC to Lambda, ECS Fargate, CloudFormation, and cost optimization. Build production-grade architectures on AWS using the Well-Architected Framework.
Master Go from syntax and goroutines to production microservices. Covers the type system, channels, generics, error handling, database access with sqlx/pgx, gRPC + protobuf, testing with benchmarks, and Docker deployment patterns.
Build iOS and Android apps from one codebase. Core components, React Navigation, Zustand, Reanimated animations, gesture handling, MMKV and WatermelonDB for offline-first data, Jest and Detox testing, EAS deployment, and in-app purchases with RevenueCat.
Build production AI systems: OpenAI and Anthropic APIs, advanced RAG pipelines, fine-tuning with LoRA/QLoRA, evaluation with RAGAS and LLM-as-judge, LangGraph agentic workflows, cost optimization with caching and model routing, and LLM security and guardrails.
The statistical foundation every data scientist needs. Probability, distributions, CLT, hypothesis testing, A/B experiments, Bayesian statistics, regression analysis with regularization, time series forecasting with ARIMA and Prophet, causal inference with DiD and RD, and Monte Carlo simulation.
Master fundamental data structures and algorithms from complexity analysis through dynamic programming, with hands-on Python exercises.
The ultimate coding interview preparation course. Master 20 essential patterns with 100+ carefully curated problems, AI-powered hints, voice coaching, and detailed solutions. Includes advanced patterns like Backtracking, Trie, Union Find, and Segment Trees not found in the standard edition.
Master arrays, hash maps, linked lists, stacks, queues, trees and graphs with hands-on Python exercises. Build the foundation for coding interviews.
Learn cybersecurity from both sides — understand how attackers think, then build the defenses that stop them. Covers OWASP Top 10, cryptography, social engineering, and hands-on security tools in Python.
Master the AP CSP curriculum -- binary, the Internet, Python programming, algorithms, data analysis, simulations, and cybersecurity. Aligned with College Board standards.
Master object-oriented programming concepts aligned with the AP CSA curriculum. Covers primitives, objects, control flow, arrays, inheritance, and recursion with hands-on Python exercises.
Explore the foundations of Islam through primary sources — the Quran, Hadith, and scholarly tradition. From the Five Pillars to Islamic ethics, learn how Muslims understand and practice their faith.
Explore the foundations of Buddhism through primary sources — the Pali Canon, Heart Sutra, and living traditions. From the Four Noble Truths to meditation practice, learn how the Buddha's teachings address suffering and cultivate wisdom and compassion.
Explore the foundations of Christianity through scripture, theology, and ethics. From the Old Testament to the life of Jesus, from the Sermon on the Mount to the civil rights movement, understand how Christians have understood and lived their faith across two millennia.
Explore Sanatana Dharma — the world's oldest living religion — through its sacred texts, philosophical traditions, ethical teachings, and living practices. From the Vedas to the Bhagavad Gita, discover how Hinduism addresses the deepest questions of human existence.
Walk the path of the Gurus — from Guru Nanak's revolutionary message of oneness to the Khalsa's fearless commitment to justice. Explore the Guru Granth Sahib, the Five Ks, Sikh ethics of Seva and equality, and a history defined by courage and sacrifice.
Explore the world's oldest monotheistic tradition -- from the covenant at Sinai to the Talmud, Jewish ethics, holidays, and modern denominations. Engage with primary sources and scholarly commentary.
Explore the ancient Chinese tradition of Taoism -- from the paradoxes of the Tao Te Ching to Zhuangzi's stories, wu wei, and the art of living in harmony with nature.
Explore the teachings of Confucius and the Confucian tradition — from the Analects and the Five Relationships to Neo-Confucian metaphysics. Learn how ren (benevolence), li (ritual propriety), and the ideal of the junzi shaped East Asian civilization for over two millennia.
Journey into the mystical heart of Islam through Sufism. From Rumi's love poetry to Ibn Arabi's metaphysics, from dhikr and whirling to al-Ghazali's great synthesis — explore how Sufis seek direct, experiential knowledge of God through purification of the heart.
Explore the Ahmadiyya Muslim Community — its origins, theology, Khilafat system, and global peace mission. Learn how this 19th-century revival movement understands Islam and engages with the modern world.
Learn practical wisdom from Marcus Aurelius, Epictetus, and Seneca. Apply ancient Stoic principles to modern challenges — from emotional resilience to ethical decision-making.
Journey from ancient Mesopotamia to the modern era -- explore how geography, technology, ideas, and human choices shaped civilizations across every continent. Presents multiple perspectives including Islamic, Asian, African, and Latin American voices alongside European.
From VLOOKUP to Power Query, financial modeling, and VBA automation. Master pivot tables, dynamic arrays with XLOOKUP/FILTER, dashboard design, DCF models with scenario analysis, Power Query ETL, and macros that automate hours of work.
From keyword research and technical SEO to link building, Google Ads, Meta Ads, conversion rate optimization, GA4 attribution modeling, and growth flywheels. Build marketing systems that compound over time.
Master your money — from budgeting and debt management to investing, retirement planning, taxes, and estate planning. 7 modules covering everything you need to build lasting wealth.
From stock market fundamentals to retirement planning and portfolio construction. 8 modules covering everything you need to build lasting wealth through disciplined, evidence-based investing.
From structure and delivery to storytelling, vocal technique, Q&A mastery, and virtual presentations. Master the techniques TED speakers use, how to think on your feet, and how to build a speaking career with genuine thought leadership.
Evidence-based strategies for managing stress, anxiety, and building lasting resilience. Learn practical techniques from CBT, mindfulness, and sleep science.
Learn evidence-based meditation and mindfulness practices — from breath awareness and body scans to loving-kindness and emotional regulation. Build a sustainable daily practice backed by neuroscience research from JAMA, The Lancet, and leading universities.
Build the inner skills that define great leaders. Grounded in psychology research from Goleman, Dweck, Kahneman, and Seligman — master self-awareness, emotional intelligence, communication, decision-making, and team building.
Master the AP Biology curriculum -- from the chemistry of life and cell structure to genetics, evolution, and ecology. Aligned with College Board standards, with analogies and real experiments that make complex biology accessible.
Explore the science of mind and behavior -- from neurons and perception to learning, development, social influence, and mental health. Covers classic experiments by Pavlov, Milgram, and Asch with clear analogies for high school students.
A rigorous A1 Spanish course designed for native English speakers. 8 modules tackle the specific challenges English speakers face: Spanish phonetics (the good news — it IS phonetic!), the ser/estar distinction, grammatical gender, the 6-form verb conjugation system, reflexive verbs, the preterite past tense, and the near future. Rich visual explanations, real cultural context, and voice conversation scenarios throughout.
Develop fluency in Spanish through past narration, subjunctive mood, workplace communication, and hypothetical reasoning. Designed for learners ready to move beyond basics.
Achieve near-native fluency in Spanish. Master complex subjunctive constructions, idiomatic expressions, academic and literary language, regional dialectology, business Spanish, and rhetorical devices.
A rigorous A1 French course designed for native English speakers. 8 modules tackle the unique challenges English speakers face: French pronunciation, grammatical gender, verb conjugation, partitive articles, and the passé composé vs imparfait distinction. Rich visual explanations, real cultural context, and voice conversation scenarios throughout.
Express opinions, discuss current events, navigate professional settings, and handle complex real-life situations in French. Build toward fluency with subjunctive, conditional, and advanced argumentation.
Achieve near-native command of French. Master nuance, register shifts, literary analysis, academic writing, and spontaneous argumentation across formal and informal contexts.
Learn Hindi from scratch — master the Devanagari script, essential greetings, pronouns with the unique three-tier honorific system, and build towards everyday conversations. Perfect for complete beginners.
Build fluency with compound verbs, complex sentence structures, and professional Hindi. Master the subjunctive, relative-correlative constructions, and navigate real-world situations with confidence.
Master idiomatic Hindi, literary registers, persuasive debate, regional dialects, business communication, and advanced grammatical nuances for near-native fluency.
Master everyday English from scratch. Learn greetings, introductions, daily routines, shopping, directions, and basic grammar. Designed for non-native speakers at the CEFR A1 level.
Build confidence in everyday English. Master present perfect, conditionals, passive voice, and phrasal verbs. Handle work, travel, media, and social situations with ease.
Master advanced English for academic, professional, and social contexts. Tackle nuanced grammar, rhetorical analysis, and register switching at the C1-C2 boundary.
A complete A1 English course designed exclusively for native Spanish speakers. Every lesson explains English through the lens of Spanish — tackling the pro-drop habit, false friends (embarazada ≠ embarrassed), the two TH sounds Spanish doesn't have, the he/she/it -s trap, do/does questions, and more. All explanations reference Spanish equivalents so you build bridges rather than starting from zero.
The complete McKinsey/BCG/Bain case interview course: frameworks, market sizing, market entry, operations, M&A, pricing, behavioral interviews, and full mock cases with worked solutions
Learn the foundations of web development from scratch -- HTML, CSS, responsive design, JavaScript DOM manipulation, Git, and portfolio projects.
Master modern JavaScript from basics to async patterns. 8 modules with hands-on exercises covering ES6+, closures, promises, and real-world patterns.
Learn programming by building games — from Pong to Space Shooter using JavaScript and HTML5 Canvas concepts.
Build modern UIs with React — from components and state to hooks, effects, routing, forms, and complete mini projects.
Exhaustive React coverage — JSX, all hooks, performance, patterns, and everything you need to ace the LinkedIn React Skills Assessment. From fundamentals to advanced patterns.
Comprehensive Java from fundamentals to interview mastery — OOP, Collections, Generics, Streams, Concurrency, Design Patterns, and Modern Java (8–21). Everything you need for Java developer roles.
Build production-grade Python APIs with FastAPI — Pydantic validation, async SQLAlchemy, JWT auth, background tasks, WebSockets, pytest, and Docker deployment.
Full-stack Python web development with Django — ORM, MVT pattern, class-based views, Django REST Framework, authentication, Celery, Redis caching, and production deployment.
Build server-side applications with Node.js — from core modules and HTTP to Express, databases, authentication, and RESTful APIs.
Build full-stack web applications with MongoDB, Express, React, and Node.js. From project setup to deployment with Docker.
Learn C++ concepts through hands-on exercises. 6 modules covering memory management, OOP, STL, templates, and systems programming patterns.
Learn C# from basics to async programming with hands-on projects.
Master the Model Context Protocol, Claude Code CLI, API bridges, Obsidian memory systems, transport internals, Redis idempotency patterns, production architecture, and interview Q&A masterclass. Targeted preparation for AI automation and Second Brain architecture roles.
Master dynamic programming by learning the underlying patterns. Covers 0/1 Knapsack, Unbounded Knapsack, Fibonacci, Palindromic Subsequences, LCS, Matrix Chain Multiplication, and DP on Strings — with hands-on Python exercises.
Master object-oriented design for interviews. Design real-world systems like parking lots, shopping carts, chess games, and more using SOLID principles and design patterns.
Prepare for ML interviews covering fundamentals, algorithms, deep learning, and real-world ML system design problems like search ranking, recommendations, and ad prediction.
Ace behavioral interviews at FAANG and top tech companies. Master STAR method, build your story bank, and learn company-specific strategies with real example answers.
Deep dive into distributed systems internals. Design Dynamo, Cassandra, Kafka, GFS, and more. Covers consensus, replication, partitioning, and fault tolerance.
Design modern distributed systems with microservices, event-driven architecture, and real-time systems. Covers Slack, Netflix, Uber, Stripe, Google Docs, and more.
Master every data structure for coding interviews. Build hash maps, heaps, tries from scratch. Learn when to use which structure.
Master API design for interviews. Learn REST, GraphQL, gRPC and design real-world APIs for Twitter, Stripe, Dropbox, WhatsApp, and Airbnb.
Master concurrency for coding interviews. Threading, synchronization, classic problems, concurrent data structures, and Python concurrency patterns.
Master AI agent development from fundamentals to production. Learn agent architectures (ReAct, Plan-and-Execute), tool use, agentic RAG, multi-agent systems, memory, safety guardrails, and protocols like MCP and A2A. Based on Microsoft's AI Agents for Beginners and GenAI Agents.
Master the art and science of prompting LLMs. Covers zero-shot, few-shot, chain-of-thought, RAG, ReAct, model-specific strategies, safety, and production deployment.
Build neural networks from scratch, progressing from micrograd to GPT. Based on Andrej Karpathy's legendary course — covers backpropagation, language modeling, transformers, and tokenization.
Master Retrieval-Augmented Generation from fundamentals to production. Learn vector databases, chunking strategies, query enhancement, hybrid search, reranking, Graph RAG, RAPTOR, Self-RAG, CRAG, and production deployment. Based on the RAG Techniques repository (25.9k stars).
Master Claude Code from installation to team-scale production. Learn workflows, skills, sub-agents, MCP integration, hooks, TDD, automated reviews, debugging, prompt engineering, and 40+ best practices. Based on Claude Code Best Practices and real-world usage patterns.
Master the analytical frameworks used by CFOs and investment bankers — from time value of money and DCF valuation to capital structure, M&A, and dividend policy. Grounded in Berk & DeMarzo, Damodaran, and MIT OCW 15.401.
Master the language of business — from the accounting equation and double-entry bookkeeping through financial statements, ratio analysis, cost accounting, managerial decision-making, and auditing ethics. 7 modules with 35 lessons and hands-on Python exercises.
Master the economics of individual choice and market dynamics — from supply and demand through consumer theory, producer theory, market structures, market failures, and labor markets. 7 modules with 35 lessons and Python exercises.
Master investment banking from deal processes and financial modeling to DCF valuation, LBO analysis, and technical interview prep — everything you need to break into IB.
Master quantitative finance from mathematical foundations through derivatives pricing, risk management, portfolio theory, and algorithmic trading — all with hands-on Python implementations.
Master the FinTech revolution — from payment systems and digital wallets to blockchain, DeFi, crypto investing, neobanking, and the future of money. 7 modules covering the technologies reshaping financial services.
Master the economics of global trade, exchange rates, balance of payments, development, and globalization. 6 modules covering trade theory, policy, forex markets, sovereign debt, and the forces shaping the world economy.
Master the frameworks that drive strategic decision-making. From Porter's Five Forces to Blue Ocean Strategy, from disruption theory to digital transformation — learn to analyze industries, build competitive advantage, and execute strategy effectively. Inspired by HBS curriculum.
Understand the forces that shape the entire economy — GDP, growth, unemployment, inflation, fiscal and monetary policy, international trade, and financial crises. 7 modules with 35 lessons covering the essential macroeconomic frameworks.
Learn to invest confidently — from stock market basics and fundamental analysis to portfolio management, ETFs, bonds, and proven investment strategies.
Master financial modeling from three-statement models and DCF valuation to LBO, merger, and real estate models — with scenario analysis and presentation techniques.
Explore how cognitive biases, heuristics, and emotions shape economic decisions. 6 modules covering Prospect Theory, nudge theory, market anomalies, and real-world applications in finance, health, and policy.
Develop the leadership and management skills that drive organizational success. From emotional intelligence to change management, from team building to ethical leadership — master the human side of business. Inspired by HBS curriculum.
Learn to build, launch, and scale a startup from scratch. From customer discovery to fundraising, from MVPs to IPOs — master the entrepreneurial journey with frameworks from HBS, Y Combinator, and Silicon Valley's best practitioners.
Master the art and science of negotiation. From BATNA to anchoring, from emotional intelligence to multi-party dynamics — learn the frameworks used by Harvard's top negotiators to create value and reach better agreements.
Master the analytical toolkit for modern business decisions. From statistics and regression to optimization, forecasting, A/B testing, and data visualization — learn to turn data into actionable insights. Inspired by HBS curriculum.