Why OpenTelemetry for Dart and Flutter? Dart is a full-stack language and the language of Flutter, one of the most popular frameworks for building cross-platform applications. Data shows over 20% of current app store submissions are Flutter apps. Dart is null safe and type safe, compiles to fast binaries, and is increasingly used for backend services as well. Yet Dart remains the last top-15 programming language without an officially maintained OpenTelemetry SDK. Earlier community implementations are no longer maintained, leaving Dart and Flutter developers without a supported path to capture telemetry from their servers and apps.

OpenTelemetry's platform is an observability framework, offering insights into distributed tracing, metrics collection, and log management for cloud-native applications. Through documentation, tutorials, and community contributions, OpenTelemetry provides insights into instrumenting applications to monitor performance and troubleshoot issues. Developers and DevOps teams can learn about distributed tracing standards, telemetry data formats, and integration with observability tools to gain visibility into complex distributed systems.

OpenTelemetry

Dart is the last top-15 programming language without an officially maintained OpenTelemetry SDK. A community-built implementation called dartastic_opentelemetry — supporting traces, metrics, and logs via OTLP/gRPC and OTLP/HTTP across server, desktop, mobile, and web — is being donated to the OpenTelemetry project. A Dart and Flutter Special Interest Group (SIG) is being formed, with a project proposal under review and six maintainers from four organizations already committed. Contributors are needed to maintain the codebase, join SIG meetings, and help drive the SDK forward.

Call for Contributors: OpenTelemetry for Dart and Flutter