peng37.com
easyy.click: Manage frequently used links and notes.
notenote.cc: Instagram style note taking, encrypted.
remiind.cc: Revisit notes with emails.

Something free

Soundice: Get music or podcast randomly from your Spotify account.
moon finder: Little page that helps you find the moon.
Encrypt37: End-to-end encrypt text and files, and get raw result.

Open source

usecat: 😸The simplest react state manager. (only 2 functions)
react-baby-router: 👶Such a simple react router.
parse-html-bookmarks: Parse HTML bookmarks file for web apps.