⚡ Executive Summary & Quick Facts
Authoritative Sourceslf4j is slf4j is an open-source project written in Java: Simple Logging Facade for Java..
| Repository | qos-ch/slf4j ↗ |
|---|---|
| Primary Category | developer tools |
| Language & Stack | Java |
| Software License | MIT |
| Community Traction | ★ 2.5K stars · ⑂ 1K forks · #3,714 globally |
| Maintenance | ● Active (Last commit: Sep 25, 2026) · 150 open issues |
| Target Audience | Developers and engineering teams building with Java, seeking reliable, tested, and actively maintained tooling for production workloads. |
Star History
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+63
STARS · LAST 30 DAYS
2
PER DAY
#277
MOST-STARRED Java
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +0 | +63 | +180 |
| Per day | 1 | 2 | 2 |
| Forks gained | +0 | +20 | +51 |
slf4j gained 63 stars in the last 30 days, about 2 a day, and now has 2.5K. It is about 17 years old and has averaged roughly 149 stars a year. It ranks #277 among Java repositories and #3,714 across all languages on GitHubRepo.
Trending Record
24
DAYS ON TRENDING
#1604
BEST RANK
Sep 26, 2026
FIRST APPEARANCE
Active
STATUS TODAY
slf4j has maintained a continuous presence across global trending indexes, peaking at #1604. Below is the 30-day activity profile:
💡 Overview
slf4j is an open-source project written in Java: Simple Logging Facade for Java.
Engineered for speed, consistency, and developer ease, it solves common hurdles in Java. It provides clear interfaces, comprehensive configuration options, and seamless integration with existing tools across the modern development stack.
⚡ Key Features
Optimized execution pipeline written in Java for predictable speed.
Zero-friction configuration with comprehensive sensible defaults out of the box.
Cross-platform runtime support across Linux, macOS, and Windows environments.
Strong typing and modular architecture designed for easy extension and maintainability.
Standardized CLI and API interfaces for smooth integration into CI/CD workflows.
Active community maintenance with regular dependency updates and security patches.
📥 Installation
$ git clone https://github.com/qos-ch/slf4j.git
cd slf4j⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
JDK 17 or higher (OpenJDK / GraalVM)
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
slf4j coordinates its core functionality through a modular Java pipeline. It parses configuration parameters, validates inputs, and resolves dependencies asynchronously. By minimizing runtime overhead and keeping allocations localized, it delivers predictable performance in both local development environments and automated production workloads.
🎯 Production Use Cases
Production System Integration
Embed slf4j into Java backend services to handle core application logic.
CI/CD Automated Pipelines
Run automated validation, builds, and integration suites during deployments.
Developer Tooling & Workflows
Accelerate developer onboarding with pre-configured project utilities.
Open Source Extension
Fork and customize internal modules under the repository's open MIT license.
🚀 Getting Started
Install slf4j using your package manager: `git clone https://github.com/qos-ch/slf4j.git`
Initialize your project workspace or configuration file for slf4j.
Import slf4j into your codebase or invoke it directly from your terminal.
Execute your test suite or run `slf4j --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 Who Should Use This
Developers and engineering teams building with Java, seeking reliable, tested, and actively maintained tooling for production workloads.
🏆 Nearby in the Rankings
qos-ch/slf4j is currently ranked #3,714 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #3,707 | Peergos/Peergos | Java | ★ 2.5K | Compare ↗ |
| #3,710 | mono0926/LicensePlist | Swift | ★ 2.5K | Compare ↗ |
| #3,711 | doctrine/DoctrineFixturesBundle | PHP | ★ 2.5K | Compare ↗ |
| #3,711 | vuepress-theme-hope/vuepress-theme-hope | TypeScript | ★ 2.5K | Compare ↗ |
| #3,711 | pluk-inc/markdown-preview | Swift | ★ 2.5K | Compare ↗ |
| #3,714 | qos-ch/slf4j This Project | Java | ★ 2.5K | |
| #3,714 | x2on/OpenSSL-for-iPhone | Shell | ★ 2.5K | Compare ↗ |
| #3,716 | mongodb/motor | Python | ★ 2.5K | Compare ↗ |
| #3,717 | facebookincubator/below | Rust | ★ 2.5K | Compare ↗ |
| #3,718 | nextcloud/ios | Swift | ★ 2.5K | Compare ↗ |
| #3,719 | microsoft/CsWin32 | C# | ★ 2.5K | Compare ↗ |
Frequently Asked Questions
What does slf4j do? +
Simple Logging Facade for Java
What language is slf4j written in? +
The primary language is Java. Topics include: software.
Is slf4j actively maintained? +
Yes, the last recorded push was on Sep 25, 2026 with 150 open issues being tracked.
How many stars does slf4j have? +
slf4j has 2,529 stars and 1,021 forks on GitHub.
How does slf4j rank among GitHub repositories? +
With 2,529 stars, qos-ch/slf4j is ranked #3,714 globally across all repositories tracked on GitHubRepo and #277 among Java projects.
What license is slf4j distributed under? +
The repository reports a MIT license. Always verify the repository LICENSE file for legal terms.
