Copybara: A tool for transforming and moving code between repositories.
⚡ Executive Summary & Quick Facts
Authoritative Sourcecopybara is copybara is an open-source project written in Java: Copybara: A tool for transforming and moving code between repositories..
| Repository | google/copybara ↗ |
|---|---|
| Primary Category | developer tools |
| Language & Stack | Java |
| Software License | Apache-2.0 |
| Community Traction | ★ 3.9K stars · ⑂ 345 forks · #2,765 globally |
| Maintenance | ● Active (Last commit: Oct 14, 2026) · 106 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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+97
STARS · LAST 30 DAYS
3
PER DAY
#188
MOST-STARRED Java
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +21 | +97 | +270 |
| Per day | 3 | 3 | 3 |
| Forks gained | +2 | +7 | +17 |
copybara gained 97 stars in the last 30 days, about 3 a day, and now has 3.9K. It is about 10 years old and has averaged roughly 388 stars a year. It ranks #188 among Java repositories and #2,765 across all languages on GitHubRepo.
Trending Record
6
DAYS ON TRENDING
#5217
BEST RANK
Oct 14, 2026
FIRST APPEARANCE
Active
STATUS TODAY
copybara has maintained a continuous presence across global trending indexes, peaking at #5217. Below is the 30-day activity profile:
💡 Overview
copybara is an open-source project written in Java: Copybara: A tool for transforming and moving code between repositories.
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/google/copybara.git
cd copybara⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
JDK 17 or higher (OpenJDK / GraalVM)
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
copybara 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 copybara 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 Apache-2.0 license.
🚀 Getting Started
Install copybara using your package manager: `git clone https://github.com/google/copybara.git`
Initialize your project workspace or configuration file for copybara.
Import copybara into your codebase or invoke it directly from your terminal.
Execute your test suite or run `copybara --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
google/copybara is currently ranked #2,765 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #2,759 | corazawaf/coraza | Go | ★ 3.9K | Compare ↗ |
| #2,761 | ryanb/ruby-warrior | Ruby | ★ 3.9K | Compare ↗ |
| #2,762 | openstreetmap/iD | JavaScript | ★ 3.9K | Compare ↗ |
| #2,763 | pika/pika | Python | ★ 3.9K | Compare ↗ |
| #2,764 | stefankroes/ancestry | Ruby | ★ 3.9K | Compare ↗ |
| #2,765 | google/copybara This Project | Java | ★ 3.9K | |
| #2,765 | vllm-project/llm-compressor | Python | ★ 3.9K | Compare ↗ |
| #2,767 | roboflow/trackers | Python | ★ 3.9K | Compare ↗ |
| #2,767 | seakee/CPA-Manager-Plus | Go | ★ 3.9K | Compare ↗ |
| #2,769 | allenai/open-instruct | Python | ★ 3.9K | Compare ↗ |
| #2,769 | MrNeRF/LichtFeld-Studio | C++ | ★ 3.9K | Compare ↗ |
Frequently Asked Questions
What does copybara do? +
Copybara: A tool for transforming and moving code between repositories.
What language is copybara written in? +
The primary language is Java. Topics include: software.
Is copybara actively maintained? +
Yes, the last recorded push was on Oct 14, 2026 with 106 open issues being tracked.
How many stars does copybara have? +
copybara has 3,883 stars and 345 forks on GitHub.
How does copybara rank among GitHub repositories? +
With 3,883 stars, google/copybara is ranked #2,765 globally across all repositories tracked on GitHubRepo and #188 among Java projects.
What license is copybara distributed under? +
The repository reports a Apache-2.0 license. Always verify the repository LICENSE file for legal terms.
