rs/zerolog

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

12494 stars · 633 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Zerolog is a fast, zero-allocation JSON structured logging library for Go with a chained, context-aware API. It supports leveled logging, sampling, hooks, CBOR encoding, and integrations with net/http and log/slog.

Use cases

• add structured JSON logging to a Go service
• log with minimal allocation overhead in hot paths
• attach contextual fields to log events
• integrate logging with net/http request handling
• migrate Go logging to log/slog with a fast backend
• pretty-print logs during local development

When to choose

• you need high-performance structured logging in Go
• you want JSON or CBOR log output with low garbage collection pressure
• you need leveled, contextual, and sampled logging with a simple API

When to avoid

• you need human-readable console logs as the primary format in production
• you need a logging backend outside the Go ecosystem
• you require extensive built-in log shipping or aggregation features

Facets

library · maturity stable

logging serialization developer-tools backend performance go cross-platform structured-logging -logging zero-allocation high-performance

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