https://passed.pw/ - Mobile-friendly random password generator seeded based on your mouse or touch positions for better randomness.

Just wanted something simple to generate passwords/tokens and ended up building this two years ago.

https://tempd.link/ - Temporary file hosting with immediate automatic deletion when leaving the site.

This was just a weekend project to test out openresty and using redis as an in-memory storage location for uploaded data that will get destroyed without writing to disk. Would be very expensive to scale something like this though.