Free OpenTelemetry capture and visualization right on your local machine.
No infrastructure to set up. No accounts to create. Just point your app and go.
Get the desktop app for Mac, Linux, or Windows
Point your OpenTelemetry SDK to localhost
OTEL_EXPORTER_OTLP_ENDPOINT=http://localhost:4318
OTEL_EXPORTER_OTLP_PROTOCOL=http/protobufStart your app and see telemetry immediately
All four pillars of observability, beautifully integrated
Track application performance with customizable dashboards. Monitor latency, throughput, and error rates at a glance.
Search structured logs with full-text search and filtering. Link directly to related traces for complete context.
Visualize request flows across services with interactive trace timelines. See the full picture of your distributed system.
Identify performance bottlenecks with interactive flame graphs. Native support for pprof and other standard formats.
Everything you need, nothing you don't. No cloud required.
Built-in OpenTelemetry collector with gRPC and HTTP support. Point your app to localhost:4317 and start immediately—no external dependencies.
All data stored locally in embedded database. Lightning-fast queries, zero network overhead, complete privacy. Perfect for development.
Blazingly fast interface built with GPUI. Smoothly navigate millions of spans, thousands of logs, complex flame graphs—all at 60fps.
Designed for deep investigation and rapid debugging
Jump from a log line to its trace with one click. Or vice versa. See causality and context without switching tools or losing your place.
Search across all telemetry with instant results. Filter by service, operation, status, tags, or any custom attribute. Regex support included.
Time ranges, services, and filters persist as you switch between tabs and views. Compare metrics across time periods without repeatedly reconfiguring.
A developer tool built by developers, for developers
We're putting the finishing touches on the UI. Check back soon to see: