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HardySimpson/zlog

A reliable, high-performance, thread safe, flexsible, clear-model, pure C logging library. observed · 2026-08-28

github.com/HardySimpson/zlog · C · Apache-2.0 (permissive) observed · 2026-08-28

Health v2 · maintenance only

66/100

  • Activity 97
  • Release rhythm 8
  • Longevity 100
How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.

  • gap_med: n/a
  • age_days: 5363
  • days_rel: n/a
  • days_push: 22
  • n_releases_24m: 0

Full methodology

Adoption not part of the score

2543 stars · 772 forks observed · 2026-08-28

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

zlog is a pure C logging library inspired by log4j/logback, offering categories, formats, and rules configured via a file. It is reliable, high-performance, thread safe, and supports flexible output to files, stdout, and size-limited rotating logs.

Use cases

  • add structured logging to a C application
  • replace printf debugging with configurable log levels
  • rotate log files with size limits
  • route different log categories to different outputs
  • high-performance multithreaded logging in C

When to choose

  • you need a log4j-style logging library in pure C
  • you need thread-safe, high-performance logging with file rotation
  • you want runtime-configurable log formats and rules via a config file

When to avoid

  • you are writing C++ and prefer a native C++ logging library
  • you need structured JSON logging out of the box
  • your project is not in C or lacks a compatible build environment

Facets

library · maturity stable

logging developer-tools backend cross-platform c thread-safe log4j-style configuration-file high-performance linux

1 source

Member repositories

RepositoryRoleHealth v2
HardySimpson/zlogmain66

For agents

markdown · JSON · MCP: product_card(name="HardySimpson/zlog")

Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem