Franz Fahrenheit 2.0

What it does

I built this simple weather app for all expats that are still struggling with either Celsius or Fahrenheit. Now with 7-day forecast 😎

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  FelsiusFeb 2026 · ▲78

  Never google “what’s 68°F in °C?” again

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  WTHR2017 · ▲154

  Today's weather app

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  Lazy Weather app2024 · ▲217

  The simplest most useful weather app so far

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  Forecast2015 · ▲100

  Elegant and simple, but yet another weather app

• 
  Karl Weather2017 · ▲82

  A beautiful SF microclimate weather app for iOS

• 
  Weather Line 22019 · ▲125

  Your weather forecast in a simple infographic

• TL
  The load-bearing vocabulary of Claude▲703

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  Photosynthesis fires two of your iPhone

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  Take control of hair pulling, nail biting & skin picking

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  Scroll through all 43252003274489856000 Rubik's Cube states▲295

  Scroll through all 43,252,003,274,489,856,000 reachable Rubik's Cube permutations.

  Life & fun · 26d ago · everycube.alen.is

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  Expeditione▲265

  The Interactive 3D Encyclopedia

  Life & fun · 21d ago · expeditione.fun

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  Eigendrum - Draw any shape and hear what it sounds like as a drum▲243

  Hi HN, I built Eigendrum, a web tool that solves the 2D wave equation for arbitrary shapes so you can hear what they sound like as drums. How it works: * Solves -∇²u = λu using finite element analysis (Kφ = λMφ) on a triangle mesh. * Validated to <0.1% error against closed-form solutions for circles (Bessel zeros) and rectangles. * Sound model factors in strike location, Rayleigh damping, and mallet width. * Includes Kac drums I & II to demonstrate identical sound spectra from different geometries. * No frameworks, build steps, or dependencies. Repo and tests:…

  Life & fun · 27d ago · baselashraf81.github.io

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  Stripe Billing▲1,027

  Billing and subscriptions for fast-growing businesses

  Dev tools · 2018 · stripe.com

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  The new version of Gmail web

  Work · 2018 · blog.google

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  The Business Messenger by Intercom▲905

  More than just chat. Intercom's new app platform.

  Life & fun · 2018 · fin.ai

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  1.1.1.1 by Cloudflare▲874

  The Internet’s fastest, privacy-first DNS resolver

  Dev tools · 2018 · one.one.one.one

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  Artboard Studio▲730

  Online graphic design app mainly focused on product mockups.

  Growth · 2018 · artboard.studio

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  Grasshopper▲664

  The coding app for beginners by Google

  Dev tools · 2018