Honeycomb

High-scale distributed tracing backend. Stores traces in cheap object storage (S3, GCS).

AGPL-3.0 · Go · ★ 4300 · Fresh

The CNCF graduated distributed tracing system, originally from Uber. The default open-source choice for traces.

Apache-2.0 · Go · ★ 23000 · Fresh

OpenTelemetry APM backed by ClickHouse. Lean alternative to SigNoz.

AGPL-3.0 · Go · ★ 2000 · Fresh

The original open-source distributed tracing system, born at Twitter in 2012. Single-binary simplicity, still maintained.

Apache-2.0 · Java · ★ 17000 · Fresh

Shortlist