configuration library for JVM languages using HOCON files
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+158
STARS · LAST 30 DAYS
5
PER DAY
#102
MOST-STARRED Java
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +35 | +158 | +450 |
| Per day | 5 | 5 | 5 |
| Forks gained | +5 | +20 | +49 |
config gained 158 stars in the last 30 days, about 5 a day, and now has 6.3K. It is about 15 years old and has averaged roughly 421 stars a year. It ranks #102 among Java repositories and #1,562 across all languages on GitHubRepo.
Trending Record
70
DAYS ON TRENDING
#100
BEST RANK
Dec 6, 2011
FIRST APPEARANCE
Active
STATUS TODAY
config has maintained a continuous presence across global trending indexes, peaking at #100. Below is the 30-day activity profile:
💡 Overview
config is an open-source project written in Java: configuration library for JVM languages using HOCON files.
Engineered for speed, consistency, and developer ease, it solves common hurdles in configuration-library, hocon, supported. 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/lightbend/config.git
cd config⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
JDK 17 or higher (OpenJDK / GraalVM)
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
config 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 config 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 source license.
🚀 Getting Started
Install config using your package manager: `git clone https://github.com/lightbend/config.git`
Initialize your project workspace or configuration file for config.
Import config into your codebase or invoke it directly from your terminal.
Execute your test suite or run `config --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
lightbend/config is currently ranked #1,562 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #1,557 | apple/swift-algorithms | Swift | ★ 6.3K | Compare ↗ |
| #1,558 | google/syzkaller | Go | ★ 6.3K | Compare ↗ |
| #1,559 | lxc/incus | Go | ★ 6.3K | Compare ↗ |
| #1,560 | alexpasmantier/television | Rust | ★ 6.3K | Compare ↗ |
| #1,561 | github/CopilotForXcode | Swift | ★ 6.3K | Compare ↗ |
| #1,562 | lightbend/config This Project | Java | ★ 6.3K | |
| #1,562 | facebook/redex | C++ | ★ 6.3K | Compare ↗ |
| #1,563 | actions/runner | C# | ★ 6.3K | Compare ↗ |
| #1,564 | open-meteo/open-meteo | Swift | ★ 6.3K | Compare ↗ |
| #1,565 | apache/hudi | Java | ★ 6.3K | Compare ↗ |
| #1,566 | vastsa/PI-Desktop | TypeScript | ★ 6.3K | Compare ↗ |
Frequently Asked Questions
What does config do? +
configuration library for JVM languages using HOCON files
What language is config written in? +
The primary language is Java. Topics include: configuration-library, hocon, supported.
Is config actively maintained? +
Yes, the last recorded push was on Oct 2, 2026 with 256 open issues being tracked.
How many stars does config have? +
config has 6,312 stars and 982 forks on GitHub.
How does config rank among GitHub repositories? +
With 6,312 stars, lightbend/config is ranked #1,562 globally across all repositories tracked on GitHubRepo and #102 among Java projects.
What license is config distributed under? +
No SPDX license identified yet. Code without a license is subject to copyright by default.
