The Pencil Project’s unique mission is to build a free and opensource tool for making diagrams and GUI prototyping that everyone can use. … https://www.tromjaro.com/pencil/
App Icon Preview
Tool for designing applications icons.
… https://www.tromjaro.com/app-icon-preview/
Coulr
Enjoy colors and feel happy … https://www.tromjaro.com/coulr/
Agave
Have you ever been re-finishing a room in your home and found yourself asking “What color would go well with this”? Or been working on a new website and not been able to find colors that go well with eachother? … https://www.tromjaro.com/agave/
Contrast
Checks whether the contrast between two colors meet the WCAG requirements.
… https://www.tromjaro.com/contrast/