Stack Interview

What it does

The complete technical interview platform: 1,000+ curated questions, 215+ DSA problems with live execution, and AI mock interviews that score you in real time Stack Interview is a free, complete technical interview prep platform - study 1,000+ full-stack questions, solve 215+ DSA problems with live code execution, and run AI mock interviews that score every answer by voice.

Practice 1,000+ curated full-stack interview questions for React, Node.js, Next.js, MongoDB, SQL, TypeScript, and system design, plus a free ATS-friendly resume builder. Built for software engineers. No sign-up required.

The ultimate platform to prepare for full-stack developer interviews. Participate in deep architectural simulations built for senior engineering. Most developers waste hours hunting for disjointed questions. StackInterview brings pure structure to the chaos. Select from React, Node.js, System Design, or Database tracks built for senior-level engineering. Predict code behavior, identify bottlenecks, and solve real-world architectural tradeoffs. Master the absolute core "why" behind every complex engineering decision with deep technical breakdowns. Jump into an unpredictable interview sequence from top tech giants. Test your knowledge across different companies, rounds, and complex technical…from stackinterview.dev

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  Free, anonymous coding interview practice2014 · interviewing.io · ▲604

  Get actionable feedback, get awesome at technical interviews, and get fast-tracked at top companies.

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  interviewing.io is out of beta and open to engineers of all levels2020 · blog.interviewing.io · ▲171

  interviewing.io is now open to all engineers in North America and the UK, regardless of seniority. Get hyper-realistic mock interviews and actionable feedback.

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  Coding Interview Practice2014 · interviewcake.com · ▲172

  Free practice programming interview questions. Interview Cake helps you prep for interviews to land offers at companies like Google and Meta.

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  I couldn't afford interview prep, so I built a free alternativeSep 2026 · learningto.co · ▲41

  Learning to pass the Google interview? Master data structures, algorithms, and system design with interactive visualizations, a code playground, and AI feedback.

• HN
  Had nowhere to practice coding interviews, so we built Pramp2015 · pramp.com · ▲29

  Join thousands of professionals practicing live mock interviews & interview questions online, with peers, for free. We help you prep & land your dream tech job. Learn more!

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  CodeClear2025 · ▲8

  Subscription-free coding interviews

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  /dev/null▲482

  a social network for devs

  Dev tools · 2d ago · dev-null.sh

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  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 27d ago · github.com

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  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 25d ago · github.com

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  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 22d ago · openbot.run

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  Talanoa▲343

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 20d ago · talanoa.email

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  CoreSpeed▲332

  One MCP for everything your agents need: apps, memory, tools

  Dev tools · 28d ago · corespeed.io

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  Brew ▲900

  Like Claude design for email marketing

  AI · May 2026 · brew.new

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  Kilo Code for VS Code▲896

  Parallel agents, diff reviewer, and multi-model comparisons

  Dev tools · May 2026 · kilo.ai

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  StoreClaw▲806

  Grow your store profits with agents that know how to sell

  AI · May 2026 · storeclaw.ai

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  PollyReach▲795

  Give your agent a real number and voice to make calls.

  AI · May 2026 · pollyreach.ai

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  Needle: We Distilled Gemini Tool Calling into a 26M Model▲776

  Hey HN, Henry here from Cactus. We open-sourced Needle, a 26M parameter function-calling (tool use) model. It runs at 6000 tok/s prefill and 1200 tok/s decode on consumer devices. We were always frustrated by the little effort made towards building agentic models that run on budget phones, so we conducted investigations that led to an observation: agentic experiences are built upon tool calling, and massive models are overkill for it. Tool calling is fundamentally retrieval-and-assembly (match query to tool name, extract argument values, emit JSON), not reasoning. Cross-attention…

  Life & fun · May 2026 · github.com

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  Files.md – Open-source alternative to Obsidian▲730

  🌱 Private, quiet space for thinking. Simple app for .md files. - zakirullin/files.md

  Dev tools · May 2026 · github.com