SmallDevTools - Handy developer tools with a delightful interface
DBngin - Free all-in-one database version management tool 🛠️
LaunchKit - Open Source - A popular suite of developer tools, now 100% open source.
Canonic - Build full-stack applications without code
Profitable developer tools database - A database of 103+ hand-curated profitable developer tools
Adminium - Database backend as a service. Easily view/edi table content