Open source alternatives to Dash0

By GitHub stars it is Netdata, with 81,384 stars and a commit on 13 Nov. Choose Netdata when you want per-second metrics kept on your own servers, with a free agent instead of a bill for every signal sent. Next come Grafana (77,874 stars) and Prometheus (67,596 stars).

Yes. The code of all 11 is public under GPL 3.0 or later, AGPL 3.0, Apache 2.0 or MIT, so you can use them with no licence fee. Running one yourself costs the server and your time to look after it, and some makers also sell a hosted plan.

Start from the job you use Dash0 for. Choose Grafana Loki when you only need log storage and want to run it yourself on inexpensive object storage, with no per-signal bill. Choose Grafana when telemetry must stay on your own servers and one dashboard should mix 150+ data sources, not one vendor's store.

All 11: Netdata, Grafana, Prometheus, SigNoz, Grafana Loki, Apache SkyWalking, OpenObserve, VictoriaMetrics and 3 more. Each tool's page says what it needs to run.

All 11 we track had a commit in the last 30 days, among them Netdata, Grafana, Prometheus and SigNoz. A recent commit shows the project is kept up, not that it will stay that way.

Apache 2.0 (5), AGPL 3.0 (3), MIT (2), GPL 3.0 or later (1). MIT, BSD and Apache let you change and reuse the code freely. GPL and AGPL ask you to share your changes under the same licence when you give the software to others, and AGPL also counts letting people use it over a network.

The hosting. Dash0's maker runs the servers for you; with an open source tool the updates, backups, security fixes and support are yours, unless you take the maker's hosted plan. Features differ too, so check what each one imports and exports before you move your data.