iotlist - Discover the internet of things
APIsentris - Build APIs instantly from MySQL, PostgreSQL, Google BigQuery and more
Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.
Schema - Organize, share and learn by adding structure to knowledge 🤓
Fieldbook - Create a database, as easily as a spreadsheet
Prisma Schema Builder - Prisma Schema Builder is an attempt to build a visual tool for constructing Prisma database schemas.