Online Favicon Generator (full package in one go)
Just provide your original site logo (possibly simplified to best suit a favicon), optionally your main colors and your app
2D Graphics
All about computer 2D graphics, colors and art
Free Wordcloud Generator
Free, no registration and full of features wordcloud generator. Of course you can select the texts, but also fonts, deformations/warping,
Online SVG Optimizer
Just upload any SVG file or paste its code, and you’ll get many tools to optimize and simplify your original
SVG Sanitizer
SVG format can embed almost any code, even executable. So unless you designed it yourself, to verity it before uploading
Plotly Chart-Studio
An excel like sheet, but with much more graphics power, for any king of charts and combinations of it. Steep
EasyEDA Electronic Circuit Designer
Perfect tool to online design electronic circuits (PCB). Exists online (registration is required) or downloadable standalone Windows, Linux and macOS.
WBO Online Whiteboard
Free online collaborative/shared whiteboard: you can draw either on the public whiteboard, accessible to all. For curiosity only, but you
Excalidraw Free Online Whiteboard
One of the most famous free online collaborative whiteboard, used by Google or Meta for their own applications or needs.
Dustsim Free Dust / Particles Simulator
An extremely addictive dust and particles simulation: add particle sources, attraction or repulsive fields (that you can move manually live
Mandelbrot Explorer
Walk through an interactive 2D view of 5 types of fractals and variants: Mandelbrot, Burning ship, Tricorn, Cubic Mandelbrot, Cubic