Prometheus : Prometheus is an open-source systems monitoring and alerting toolkit originally built at SoundCloud. Prometheus's main features are:
a multi-dimensio...
Keycloak : Keycloak is an Open Source Identity and Access Management solution for modern Applications and Services.
SimpleLogin : With email aliases , you can be anonymous online and protect your inbox against spams and phishing. Open-source.
Kinto : Kinto is a lightweight JSON storage service with synchronisation and sharing abilities.
Isso : Isso – Ich schrei sonst – is a lightweight commenting server written in Python and JavaScript. It aims to be a drop-in replacement for Disqus.
A lightweight, open source, tracking-free comment engine alternative to Disqus.