# rs/zerolog

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12,220 stars · 613 forks · Go · mit

## Links

- GitHub: https://github.com/rs/zerolog
- awesome-repositories: https://awesome-repositories.com/repository/rs-zerolog.md

## Topics

`golang` `json` `logging` `structured-logging` `zerolog`

## Description

Zerolog is a structured logging library for Go designed for high-performance event capture and observability. It focuses on generating machine-readable JSON output while minimizing memory overhead through zero-allocation buffer encoding and strongly-typed field validation.

The library distinguishes itself by providing a chainable, context-aware interface that allows developers to bind trace identifiers and metadata directly to request lifecycles. It supports complex diagnostic workflows by enabling independent logger instances, custom output routing to multiple concurrent destinations, and event-based sampling to manage log volume and storage costs.

Beyond its core structured output, the toolkit includes features for local development, such as transforming machine-readable data into colorized, human-friendly console text. It also maintains compatibility with existing systems by providing adapters that wrap standard library logging interfaces, allowing for the integration of modern diagnostic capabilities into legacy codebases.

## Tags

### Development Tools & Productivity

- [Go](https://awesome-repositories.com/f/development-tools-productivity/diagnostic-toolkits/go.md) — Provides a toolkit for capturing application events and request context to simplify debugging and observability in Go.
- [Standard Library Adapters](https://awesome-repositories.com/f/development-tools-productivity/logging-libraries/standard-library-adapters.md) — Provides adapters that wrap standard library logging interfaces to maintain compatibility with legacy codebases. ([source](https://github.com/rs/zerolog#readme))

### System Administration & Monitoring

- [High-Performance Logging](https://awesome-repositories.com/f/system-administration-monitoring/high-performance-logging.md) — Provides a logging framework optimized for minimal resource consumption and high throughput in complex applications.
- [Structured Logging Frameworks](https://awesome-repositories.com/f/system-administration-monitoring/structured-logging-frameworks.md) — Generates high-performance, machine-readable JSON logs with strongly-typed fields for detailed observability. ([source](https://github.com/rs/zerolog#readme))
- [Contextual Logging](https://awesome-repositories.com/f/system-administration-monitoring/contextual-logging.md) — Binds trace identifiers and metadata to request contexts to ensure logs remain traceable throughout the application lifecycle. ([source](https://github.com/rs/zerolog#readme))
- [Logging Pipelines](https://awesome-repositories.com/f/system-administration-monitoring/logging-pipelines.md) — Broadcasts log messages to multiple destinations simultaneously, such as standard output, files, or remote services. ([source](https://github.com/rs/zerolog#readme))
- [Multi-Writer Multiplexers](https://awesome-repositories.com/f/system-administration-monitoring/system-logging/custom-log-writers/multi-writer-multiplexers.md) — Broadcasts log streams to multiple concurrent destinations by delegating to registered output handlers.
- [Independent Logger Instances](https://awesome-repositories.com/f/system-administration-monitoring/log-management/logger-hierarchies/independent-logger-instances.md) — Supports creating independent logger instances to route messages to specific destinations or apply unique configurations. ([source](https://github.com/rs/zerolog#readme))
- [Custom Log Writers](https://awesome-repositories.com/f/system-administration-monitoring/system-logging/custom-log-writers.md) — Executes user-defined functions before writing log events to inject dynamic fields or send data to external systems. ([source](https://github.com/rs/zerolog#readme))

### Networking & Communication

- [Contextual Metadata Propagation](https://awesome-repositories.com/f/networking-communication/tracing-context-propagation/contextual-metadata-propagation.md) — Automatically binds trace identifiers and metadata to request lifecycles for consistent observability.
- [Distributed Tracing](https://awesome-repositories.com/f/networking-communication/distributed-tracing.md) — Binds trace identifiers to request lifecycles to ensure logs remain traceable across distributed system components.

### Software Engineering & Architecture

- [Zero-Allocation Buffer Encoders](https://awesome-repositories.com/f/software-engineering-architecture/zero-copy-buffers/zero-allocation-buffer-encoders.md) — Serializes log events directly into reusable buffers to minimize memory allocation overhead.
- [Sampling Strategies](https://awesome-repositories.com/f/software-engineering-architecture/event-logging/sampling-strategies.md) — Reduces log storage overhead by applying frequency-based sampling to system events.
- [Log Management](https://awesome-repositories.com/f/software-engineering-architecture/log-management.md) — Reduces total log storage costs by applying sampling strategies based on frequency or burst thresholds.

### Artificial Intelligence & ML

- [Sampling Strategies](https://awesome-repositories.com/f/artificial-intelligence-ml/sampling-strategies.md) — Reduces total log volume by applying sampling strategies based on frequency or burst thresholds. ([source](https://github.com/rs/zerolog#readme))

### Operating Systems & Systems Programming

- [Diagnostic Compatibility Layers](https://awesome-repositories.com/f/operating-systems-systems-programming/display-windowing/tiling-window-managers/legacy-compatibility-layers/diagnostic-compatibility-layers.md) — Wraps existing logging interfaces to maintain compatibility with older codebases.

### Programming Languages & Runtimes

- [Type Safety](https://awesome-repositories.com/f/programming-languages-runtimes/language-features-paradigms/type-system-tools/type-safety.md) — Enforces data integrity and prevents errors through strict validation and structured type definitions during log field construction.

### Web Development

- [Logging Compatibility Adapters](https://awesome-repositories.com/f/web-development/legacy-stream-adapters/logging-compatibility-adapters.md) — Maintains compatibility with legacy logging interfaces while providing modern diagnostic capabilities.