Hello HN!
Seen is a very minimal, and currently WIP Google Keep alternative. Seen lets you create little "cards" with Markdown that you can search and edit. Seen is very basic right now, but contains all the basic functionality you would expect. There's no sharing/downloads, no pins, no tags - nothing. But it's all planned!
Seen is not open-source right now either. My plan is to build out Seen with your (yes, your) feedback to make it perfect. It's a little side project of mine, not a full-blown SaaS with pricing and stuff.
If you're interested in using Seen (and it's completely free), drop an email in the address here: https://news.ycombinator.com/user?id=_bittereA little about me: I'm a 16 year old who's really interested in building all things web/design. I've built a few projects before, but none that I've shared with the world. Check out my dribble: https://dribbble.com/bittere
Thank you!