I made the simplest RSVP tool after frustration with Google Forms
Does the same job
all alternatives →- IBI built a free forms service for static websites2020 · formking.io · ▲163
- ICI created a URL shortener that can be entirely hosted on GitHub Pages2020 · github.com · ▲355
- IBI built a Medium alternative for developers using RSS feeds2019 · diff.blog · ▲33
- AFA fast RSS reader I built with a friend2020 · weloverss.com · ▲50
- AAAfter a couple of months playing with the Reddit API, I built this...2012 · flipmeme.com · ▲38
- FPFree Push Infrastructure for RSS Reader2013 · rsspusher.eu01.aws.af.cm · ▲44
More life & fun this month
the category →- TL
Life & fun · 10d ago · louisabraham.github.io

Photosynthesis fires two of your iPhone
Life & fun · 28d ago · photosynthesis.camera
SoloUno▲310Take control of hair pulling, nail biting & skin picking
Life & fun · 28d ago · solouno.io

Scroll through all 43,252,003,274,489,856,000 reachable Rubik's Cube permutations.
Life & fun · 26d ago · everycube.alen.is


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
Launched alongside, May 2025
the whole month →
- C9
Life & fun · 2025 · felixrieseberg.github.io



