SmallDevTools - Handy developer tools with a delightful interface
Eagle App - Unify your creative inspiration in one place. Store anything – inspiring images, design mockups, illustrations, screenshots and more.
LaunchKit - Open Source - A popular suite of developer tools, now 100% open source.
MRN - A Material Design style React Native component library.
Profitable developer tools database - A database of 103+ hand-curated profitable developer tools
Atomize React - An open source design system for ReactJS