One Million Checkboxes

checking a box checks it for everyone.

What it does

Click a checkbox together.

The Inbox Checkup2014 · ▲196
Compare your inbox mastery with everyone else
UC
Useful checkboxes – inspired by Adam Savage2023 · neontomo.com · ▲5
Paste.lol2016 · ▲79
An infinite message board
1 Million under 1 Million2021 · ▲106
Forget 40 under 40 and make it to this list
Checkli2015 · ▲92
The simplest way to make and share checklists.
IC
I created a checkbox Conway's Game of Life. For some reason2023 · jenkinsdev.github.io · ▲5

TL
The load-bearing vocabulary of Claude▲703
Life & fun · 10d ago · louisabraham.github.io
iPhone app takes simultaneous images from 2 lenses, fuses into 1 photo▲329
Photosynthesis fires two of your iPhone
Life & fun · 28d ago · photosynthesis.camera
SoloUno▲310
Take control of hair pulling, nail biting & skin picking
Life & fun · 28d ago · solouno.io
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
Expeditione▲265
The Interactive 3D Encyclopedia
Life & fun · 21d ago · expeditione.fun
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 · 26d ago · baselashraf81.github.io

Pygma▲1,409
AI copilot for Instagram
AI · 2024 · pygma.me
Cello▲1,347
Easiest way to add a referral program to your SaaS
Growth · 2024 · cello.so
La Growth Machine▲1,216
Create personalized, multi-channel conversations at scale
AI · 2024 · lagrowthmachine.com
FlowMapp 3.0▲1,147
Visual website planning in the most powerful way
Work · 2024 · flowmapp.com
Superhuman 2.0▲1,143
Revolutionary AI email, reimagined for teams
AI · 2024 · superhuman.com
PyjamaHR▲1,132
Hiring on autopilot. The AI applicant tracking system (ATS).
Work · 2024 · pyjamahr.com