Playlist Machinery - Tools that help you create & organize your Spotify playlists
Bannerbear - Auto-generate IG Stories, Pinterest Pins and more
Playlistor - Convert Apple Music playlists to Spotify and vice versa
APITemplate.io - APITemplate.io allows you to auto-generate social images and PDF documents with a simple API or automation tools like Zapier & Airtable. No CSS/HTML required.
playAppleMusic.com - An (unofficial) web player for Apple Music
Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.