Real time
Besides the end-of-test summary, you can also view metrics as granular data points. k6 can stream the metrics in real-time and either:
- Write output to a file
 - Send output to an external service.
 
Write to file
Currently, k6 supports writing to the following file formats:
Stream to service
You can also stream real-time metrics to:
As well as the following third-party services:
- Amazon CloudWatch
 - Apache Kafka
 - Datadog
 - Dynatrace
 - Elasticsearch
 - Grafana Cloud Prometheus
 - InfluxDB
 - Netdata
 - New Relic
 - OpenTelemetry
 - Prometheus remote write
 - TimescaleDB
 - StatsD
 - Other alternative with a custom output extension
 
Note
This list applies to local tests, not to cloud tests.


