diff --git a/README.md b/README.md
index 4ca63a2..0c25311 100644
--- a/README.md
+++ b/README.md
@@ -359,6 +359,7 @@ Network Automation is a cross between the discipline of [Network Infrastructure]
 ## Tools
 
 - [Batfish](https://github.com/batfish/batfish) - Open-source network validation application. Multi-vendor configuration parser with a detailed modeled based simulation to analyze all aspects of network behavior (routing, forwarding, security, etc...).
+- [D2](https://d2lang.com/) - Create beautiful diagrams in minutes. Simple syntax. Endlessly customizable. D2 is the fastest and easiest way to get a mental model from your head onto the screen, then make edits with your team.
 - [Drawthe.net](https://github.com/cidrblock/drawthe.net) - Draw network diagrams described in YAML files.
 - [IS-IS Watcher](https://github.com/Vadims06/isiswatcher) - Tracks IS-IS topology changes by establishing a GRE tunnel with network devices via a history diagram.
 - [napalm-logs](https://github.com/napalm-automation/napalm-logs) - Cross-vendor normalisation for network syslog messages, following the OpenConfig and IETF YANG models.
@@ -374,6 +375,7 @@ Network Automation is a cross between the discipline of [Network Infrastructure]
 - [InfluxDB](https://www.influxdata.com/) - Made for developers to build time-series-based applications quickly and at scale.
 - [Prometheus](https://prometheus.io/) - Prometheus is an open-source systems monitoring and alerting toolkit originally built at SoundCloud.
 - [Telegraf](https://www.influxdata.com/time-series-platform/telegraf/) - Telegraf is the open source server agent to help you collect metrics from your stacks, sensors, and systems.
+- [Grafana](https://grafana.com/) - The open observability platform.
 
 ## Online Parser