Learn languages, code, and more with AI tutors that adapt to you.
Voice conversation with AI tutors in 18 languages.
50+ courses in tech, languages, finance & more.
Master fundamental data structures and algorithms from complexity analysis through dynamic programming, with hands-on Python exercises.
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.
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.
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 arrays, hash maps, linked lists, stacks, queues, trees and graphs with hands-on Python exercises. Build the foundation for coding interviews.
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 object-oriented programming concepts aligned with the AP CSA curriculum. Covers primitives, objects, control flow, arrays, inheritance, and recursion with hands-on Python exercises.
Learn Python from scratch. 10 modules covering variables, control flow, functions, data structures, OOP, and real projects — all with hands-on exercises.
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.
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.
Learn practical wisdom from Marcus Aurelius, Epictetus, and Seneca. Apply ancient Stoic principles to modern challenges — from emotional resilience to ethical decision-making.
Evidence-based strategies for managing stress, anxiety, and building lasting resilience. Learn practical techniques from CBT, mindfulness, and sleep science.
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.
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.
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.
Master the AP CSP curriculum -- binary, the Internet, Python programming, algorithms, data analysis, simulations, and cybersecurity. Aligned with College Board standards.
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.
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.
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.
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.