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Lyte Code
A fast, private, in-browser interview-prep app: curated problem lists with a Python and JavaScript editor, an empirical complexity estimator, progressive hin...
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81 % |
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Coding Interview Guide — Free DSA Practice & Learning
Free software engineering interview prep. Learn data structures & algorithms, practice 24 coding problems with a live Python runner, debug real-world bugs, a...
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80 % |
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Free Coding Interview Questions, Solutions & Explanations
Solve coding interview questions in JavaScript, TypeScript, Python, Java, and C# — free code runner, company-specific tracks, and guided study plans.
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80 % |
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TheScalableDev — Data Structures, Algorithms & System Design
Fully interactive visualizations for data structures, algorithms, and system design. Follow every step of the trace, live.
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80 % |
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Mazaalai IO — DSA interview prep, the calm way
Brush up on data structures and algorithms through curated, pattern-based tracks. Terminal-first workflow, progressive hints, real grading.
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80 % |
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John Bentley
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79 % |
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Learn software through visuals, interactivity, and practice | Scale Engineer
Scale Engineer: DSA problems with solutions, engineering glossary, job board, and interview guides. Read by 75,000+ users.
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79 % |
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AlgoCracked — AI Product Company · Coding Interview, AI & Quant Prep
AlgoCracked is an AI product company based in Nairobi, Kenya, behind Sigmora (our flagship) and this interview-prep platform: master algorithms, data structu...
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79 % |
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Anvil — Build Skills. Break Limits. Ace the Interview.
Anvil is a ByteTech LLC product that helps software engineers prepare for technical interviews with lessons that check understanding, spaced review, coding pro…
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79 % |
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QuantaLearn
Interactive quantum algorithm learning platform — build circuits, run them, and get explanations that cannot state a wrong number.
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79 % |
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JSBits — Frontend interviews, one focused path. Free.
A free, focused path through frontend engineering: deep, visual lessons across HTML, CSS, JavaScript, and React, plus a serious frontend-interview capstone —...
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78 % |
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Sean Beirnes | User-Centered Systems Builder
Sean Beirnes turns frustrating workflows into thoughtful software — RAG chatbots, neural networks, and open-source contributions.
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78 % |
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Taste — the developer interview for the AI era
Taste turns the developer interview into real work: candidates get your codebase, a token budget, a set of models, and a task your team actually needs done.
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78 % |
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Practice Code, Run Tests, Understand Complexity
CodeCraftingHub practice home: deliberate challenges, in-browser execution (coming soon), and algorithm complexity you can trust.
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78 % |
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AIxDT: Design Thinking, with an AI co-pilot
AIxDT turns your interviews, field notes, and raw research into a PRD through a full, factual Design Thinking process: empathize, define, ideate, and ship. E...
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78 % |
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Code the Hero — learn data structures & algorithms (DSA) by writing real code
Write real Python, Java or JavaScript and watch a pixel hero act out every line. 70 levels across 10 worlds: arrays, hashing, binary search, sorting, recursi...
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78 % |
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Coding Speed Test — AI Explains Every Line as You Type
Free coding speed test for developers — type real code in 500+ languages while AI explains every line. Track WPM, earn certificates, no sign-up.
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78 % |
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Zeroth — Master Coding Interviews
Zeroth helps developers master coding interviews with 500+ practice questions, daily challenges, and interactive problem-solving across 6 question types.
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78 % |
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CodingPatterns - Practice Coding Patterns
Learn and practice coding patterns for technical interviews
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78 % |
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leetdeeper — Go deeper than algorithms
Interactive coding challenges focused on async patterns, concurrency primitives, and the building blocks of real systems. Re-implement the tools you rely on.
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78 % |
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