slog-rs/slog

Health v2 · maintenance only

Adoption not part of the score

1708 stars · 99 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

slog is an ecosystem of reusable components for structured, contextual, extensible, and composable logging in Rust. It is a mature, battle-tested library that offers more features than the standard log crate, though the README now recommends considering the tracing crate for new projects.

Use cases

• add structured logging to a Rust application
• create hierarchical contextual loggers with key-value pairs
• log with high performance in a non-async Rust project
• compose custom logging drains and formats
• replace the standard log crate with richer logging features

When to choose

• you need mature, stable code and API
• async-specific logging support doesn't benefit you
• you need features tracing is missing
• you want very good logging performance

When to avoid

• you are starting a new async-heavy Rust project (tracing is the go-to)
• you want the largest community and dev team
• you want a simple logging setup with a shallow learning curve

Facets

library · maturity maintenance

logging developer-tools backend rust cross-platform structured-logging hierarchical-loggers contextual-logging rust-ecosystem

Member repositories

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