Backend observability focused on reproducible events

Metrics show pressure; traces show hops. ReplayStack captures the exact backend event your team needs to reason about—and replay—when something fails in prod.

Queues, webhooks, and HTTP in one model

Ingest from SDKs or POST directly—tag service, environment, and version so filters stay honest under high cardinality.

Privacy that travels with the event

Mask tokens and PII before events land in tickets or shared timelines—security policies follow the payload.

Complement OpenTelemetry & APM

Use OTel and APM for fleet-wide signals; use ReplayStack when the question is “what exactly failed, and can we replay it?”

Compare how ReplayStack fits your stack: Datadog, OpenTelemetry, Sentry.