HtFLlib

Master programming by recreating your favorite technologies from scratch.

A list of Free Software network services and web applications which can be hosted on your own servers

Fair-code workflow automation platform with native AI capabilities. Combine visual building with custom code, self-host or cloud, 400+ integrations.

Bring data to life with SVG, Canvas and HTML. :bar_chart::chart_with_upwards_trend::tada:

A list of SaaS, PaaS and IaaS offerings that have free tiers of interest to devops and infradev

X-Ray Vision for your infrastructure!

The open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multiple sources like Prometheus, Loki, Elasticsearch, InfluxDB, Postgres and many more.

Apache Superset is a Data Visualization and Data Exploration Platform

Apache ECharts is a powerful, interactive charting and data visualization library for browser

The Patterns of Scalable, Reliable, and Performant Large-Scale Systems