1Code1Day

What it does

One JS challenge a day to keep your coding sharp — free & mobile-friendly.

Mejora tus habilidades de programación con un reto diario de JavaScript

Mejora tus habilidades de JavaScript con desafíos diarios diseñados para hacerte mejor programador. Un nuevo desafío cada día diseñado para mejorar tus habilidades progresivamente. Resuelve los retos en nuestro editor con validación en tiempo real y feedback inmediato. Accede a nuestra colección de retos para practicar a tu propio ritmo y mejorarfrom 1code1day.app

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  100DaysOfNoCode Challenge2021 · 100school.com · ▲566

  Learn to no-code in 100 days

• 
  No Code Challenges2020 · ▲201

  A weekly challenge to test your #nocode skills

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  21-Day Coding Challenge2019 · ▲5

  Create a daily habit with new JavaScript coding challenges

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  Codele2025 · ▲140

  If LeetCode and Wordle had a kid

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  A Repo of JavaScript Coding Challenges2015 · github.com · ▲127

  Some basic javascript coding challenges and interview questions - kolodny/exercises

• 
  Frontyssey2023 · ▲117

  Build your coding confidence with engaging challenges

• 
  /dev/null▲490

  a social network for devs

  Dev tools · 4d 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 · 28d 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 · 26d ago · github.com

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  OpenBot▲362

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

  Dev tools · 24d ago · openbot.run

• 
  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 · 21d ago · talanoa.email

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  CoreSpeed▲332

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

  Dev tools · 29d ago · corespeed.io

• 
  I built a hardware processor that runs Python▲983

  Hi everyone, I built PyXL — a hardware processor that executes a custom assembly generated from Python programs, without using a traditional interpreter or virtual machine. It compiles Python -> CPython Bytecode -> Instruction set designed for direct hardware execution. I’m sharing an early benchmark: a GPIO test where PyXL achieves a 480ns round-trip toggle — compared to 14-25 micro seconds on a MicroPython Pyboard - even though PyXL runs at a lower clock (100MHz vs. 168MHz). The design is stack-based, fully pipelined, and preserves Python's dynamic typing without static type restrictions.…

  Dev tools · 2025 · runpyxl.com

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  Unsure Calculator – back-of-a-napkin probabilistic calculator▲930

  The Unsure Calculator is an online tool that lets you calculate with numbers you’re not sure about.

  Life & fun · 2025 · filiph.github.io

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  I built an AI that turns GitHub codebases into easy tutorials▲923

  https://the-pocket.github.io/Tutorial-Codebase-Knowledge/

  AI · 2025 · github.com

• 
  Whatting▲898

  The iPad diary, just for you

  Work · 2025 · whatting.com

• 
  Strawberry▲859

  Browser with AI companions that automate web tasks

  AI · 2025 · strawberrybrowser.com

• 
  Peek▲828

  AI personal finance coach that guides you through decisions

  Work · 2025 · peek.money