A useful canvas drawing tool – PenTool
Does the same job
all alternatives →- SDSymmetrical Drawing Tool for Doodling2021 · aliciaunderhill.xyz · ▲115
- PAPrimrose – A text editor that draws to Canvas2015 · capnmidnight.github.io · ▲49
- GIGoJS - Interactive Canvas Diagramming Library2013 · gojs.net · ▲48
- LDLegraJS – Draw using Lego-like brick shapes on Canvas2019 · legrajs.com · ▲140
- SHShakyDraw – Hand-drawn block diagrams from plain text2017 · shakydraw.com · ▲140
- LGLudigraphix, geometry-oriented vector drawing software for Mac2019 · ludigraphix.org · ▲106
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, July 2020
the whole month →
- TB
Life & fun · 2020 · mtlynch.io
- 3B
Life & fun · 2020 · 3d-book-css.netlify.app

- PA
Life & fun · 2020 · primo.af
