wtfdev

What it does

Most devs waste 10+ minutes googling cryptic error messages. wtfdev gives you the answer instantly in your terminal — plain English explanation + copy-paste fix. Just run npx wtfdev with any error. No install, no API key, no AI. Works offline with 53 hand-written error entries across React, Node.js, TypeScript, Next.js, npm, and Git. It's the tldr for error messages.

Decode cryptic error messages. tldr for errors. Contribute to 999thBaam/wtfdev development by creating an account on GitHub.

wtfdev --clipboard What You Get ╔══════════════════════════════════════════════════════╗ ║ Port already in use ║ ╠══════════════════════════════════════════════════════╣ ║ WHAT Port 3000 is already in use by another ║ ║ process. ║ ║ ║ ║ WHY You likely have another dev server running, ║ ║ or a previous process didn't shut down ║ ║ cleanly. ║ ║ ║ ║ FIX 1 Kill the process on that port ║ ║ $ lsof -ti:3000 | xargs kill -9 ║ ║ ║ ║ FIX 2 Use a different port ║ ║ $ PORT=3001 npm start ║ ║ ║ ║ DOCS https://nodejs.org/api/errors.html#eaddrinuse ║ ╚══════════════════════════════════════════════════════╝ Supported Errors Category Example Errors Node.js EADDRINUSE , ENOENT , MODULE_NOT_FOUND ,…from github.com

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  v0.dev by Vercel2023 · v0.app · ▲549

  Generate UI with simple text prompts: copy, paste, ship

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  a0.dev2025 · a0.dev · ▲479

  Generate full mobile apps with AI

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  What The Fix-CLIMar 2026 · github.com · ▲2

  Prepend 'wtf' to failing commands for an instant AI fix.

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  Safe-NPM – only install packages that are +90 days oldNov 2025 · github.com · ▲90

  This past quarter has been awash with sophisticated npm supply chain attacks like [Shai-Hulud](https://www.cisa.gov/news-events/alerts/2025/09/23/widesprea...() and the [Chalk/debug Compromise](https://www.wiz.io/blog/widespread-npm-supply-chain-attack-b...). This CLI helps protect users from recently compromised packages by only downloading packages that have been public for a while (default is 90 days or older). Install: npm install -g @dendronhq/safe-npm Usage: safe-npm install react@^18 lodash How it works: - Queries…

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  01100010.wtf2022 · ▲77

  A text to binary converter made by ChatGPT

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  Wsta – a CLI for working with WebSockets written in Rust2016 · github.com · ▲85

  A CLI development tool for WebSocket APIs. Contribute to eliihen/wsta development by creating an account on GitHub.

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  /dev/null▲491

  a social network for devs

  Dev tools · 4d ago · dev-null.sh

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  Run full iOS 16.5 firmware on Android Devices▲445

  Contribute to oosexgang/hackios-xnu-kernel development by creating an account on GitHub.

  Dev tools · 20h ago · github.com

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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 · 29d 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 · 27d ago · github.com

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  OpenBot▲362

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

  Dev tools · 24d ago · openbot.run

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  Talanoa▲346

  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 · 22d ago · talanoa.email

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  Brila▲1,364

  One-page websites from real Google Maps reviews

  AI · Apr 2026 · brila.ai

• AG
  A game where you build a GPU▲964

  Thought the resources for GPU arch were lacking, so here we are

  Life & fun · Apr 2026 · jaso1024.com

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  I built a tiny LLM to demystify how language models work▲915

  Built a ~9M param LLM from scratch to understand how they actually work. Vanilla transformer, 60K synthetic conversations, ~130 lines of PyTorch. Trains in 5 min on a free Colab T4. The fish thinks the meaning of life is food. Fork it and swap the personality for your own character.

  AI · Apr 2026 · github.com

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  Fathom 3.0▲800

  AI meeting notes: now bot-free, in ChatGPT & Claude + more

  AI · Apr 2026 · fathom.ai

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  Brutalist Concrete Laptop Stand (2024)▲786

  I made a laptop stand out of solid concrete, in the style of brutalist architecture, with themes of urbex and urban decay

  Life & fun · Apr 2026 · sam-burns.com

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  I built a frontpage for personal blogs▲783

  With social media and now AI, its important to keep the indie web alive. There are many people who write frequently. Blogosphere tries to highlight them by fetching the recent posts from personal blogs across many categories. There are two versions: Minimal (HN-inspired, fast, static): https://text.blogosphere.app/ Non-minimal: https://blogosphere.app/ If you don't find your blog (or your favorite ones), please add them. I will review and approve it.

  AI · Apr 2026 · text.blogosphere.app