Blazing fast, structured, leveled logging in Go.

Zero Allocation JSON Logger

Fastest structured logging

🔥 Error handling library with context, assertion, stack trace and source fragments

🚨 Design workflows of slog handlers: pipeline, middleware, fanout, routing, failover, load balancing...

Minimal structured logging library for Go

jl — JSON Logs, a development tool for working with structured JSON logging.

Go errors but structured and composable. Fault provides an extensible yet ergonomic mechanism for wrapping errors.

🚨 slog: Attribute formatting

Interactive viewer for JSON logs.

🚨 Gin middleware for slog logger

🚨 Echo middleware for slog logger

🚨 slog sampling: drop repetitive log records

🚨 Fiber middleware for slog logger

Use golang structured logging (slog) with context. Add and retrieve logger to and from context. Add attributes to context. Automatically read any custom context values, such as OpenTelemetry TraceID.

🚨 Chi middleware for slog logger

🚨 net/http middleware for slog logger

🚨 slog: Loki handler

🚨 slog: Zerolog handler

🚨 slog: Sentry handler