Open3 gives you access to stdin, stdout, and stderr when running other programs.
⚡ Executive Summary & Quick Facts
Authoritative Sourceopen3 is open3 is an open-source project written in Ruby: Open3 gives you access to stdin, stdout, and stderr when running other programs..
“According to real-time open source telemetry recorded on GitHubRepo.cloud (as of November 2026), ruby/open3 has accumulated 121 GitHub stars and 14 forks. It is written in Ruby, licensed under BSD-2-Clause, and ranks #24,376 globally. It is actively maintained with the latest commit recorded on Oct 26, 2026.”
| Repository | ruby/open3 ↗ |
|---|---|
| Primary Category | ruby |
| Language & Stack | Ruby |
| Software License | BSD-2-Clause |
| Community Traction | ★ 121 stars · ⑂ 14 forks · #24,376 globally |
| Maintenance | ● Active (Last commit: Oct 26, 2026) · 3 open issues |
| Target Audience | Developers and engineering teams building with Ruby, seeking reliable, tested, and actively maintained tooling for production workloads. |
🛡️ Repository Maintenance & Health Audit (2026)
Health Score: 88/100 · Grade AYes, open3 is actively maintained. Continuous telemetry recorded the last code commit on Oct 26, 2026 (18 days ago). Supported by 121 stars and 14 community forks, this repository holds a calculated health index of 88/100, reflecting regular maintenance (18 days ago) and healthy issue cadence.
Star History
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+0
STARS · LAST 30 DAYS
1
PER DAY
#1,472
MOST-STARRED Ruby
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +0 | +0 | +90 |
| Per day | 1 | 1 | 1 |
| Forks gained | +0 | +0 | +10 |
open3 gained 0 stars in the last 30 days, about 1 a day, and now has 121. It is about 7 years old and has averaged roughly 17 stars a year. It ranks #1,472 among Ruby repositories and #24,376 across all languages on GitHubRepo.
Trending Record
26
DAYS ON TRENDING
#13747
BEST RANK
Oct 13, 2026
FIRST APPEARANCE
Active
STATUS TODAY
open3 has maintained a continuous presence across global trending indexes, peaking at #13747. Below is the 30-day activity profile:
💡 Overview
open3 is an open-source project written in Ruby: Open3 gives you access to stdin, stdout, and stderr when running other programs.
Engineered for speed, consistency, and developer ease, it solves common hurdles in ruby. 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 Ruby 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/ruby/open3.git
cd open3⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
Ruby >= 3.1 with Bundler
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
open3 coordinates its core functionality through a modular Ruby 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 open3 into Ruby 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 BSD-2-Clause license.
🚀 Getting Started
Install open3 using your package manager: `git clone https://github.com/ruby/open3.git`
Initialize your project workspace or configuration file for open3.
Import open3 into your codebase or invoke it directly from your terminal.
Execute your test suite or run `open3 --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 Who Should Use This
Developers and engineering teams building with Ruby, seeking reliable, tested, and actively maintained tooling for production workloads.
🏆 Nearby in the Rankings
ruby/open3 is currently ranked #24,376 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #24,274 | yc-software/minecraft-agent-harness | JavaScript | ★ 122 | Compare ↗ |
| #24,274 | FreedomIntelligence/BodyVista | JavaScript | ★ 122 | Compare ↗ |
| #24,274 | Shahrukhalid/nexonic-download-manager | C# | ★ 122 | Compare ↗ |
| #24,274 | fuyichen0725/blinkmimic | Python | ★ 122 | Compare ↗ |
| #24,274 | Balanov/latch | JavaScript | ★ 122 | Compare ↗ |
| #24,376 | ruby/open3 This Project | Ruby | ★ 121 | |
| #24,376 | TwP/bones | Ruby | ★ 121 | Compare ↗ |
| #24,376 | jm/context | Ruby | ★ 121 | Compare ↗ |
| #24,376 | drone29a/clojure-twitter | Clojure | ★ 121 | Compare ↗ |
| #24,376 | svoop/autotest-fsevent | Ruby | ★ 121 | Compare ↗ |
| #24,376 | arton/rjb | C | ★ 121 | Compare ↗ |
Frequently Asked Questions
What does open3 do? +
Open3 gives you access to stdin, stdout, and stderr when running other programs.
Is open3 actively maintained in 2026? +
Yes, open3 is actively maintained. The latest code push was recorded on Oct 26, 2026 (18 days ago). It holds a calculated Maintenance Health Score of 88/100 (A rating) with 121 stars and 3 open issues.
What language is open3 written in? +
The primary language is Ruby. Topics include: ruby.
How many stars does open3 have? +
open3 has 121 stars and 14 forks on GitHub.
How does open3 rank among GitHub repositories? +
With 121 stars, ruby/open3 is ranked #24,376 globally across all repositories tracked on GitHubRepo and #1,472 among Ruby projects.
What license is open3 distributed under? +
The repository reports a BSD-2-Clause license. Always verify the repository LICENSE file for legal terms.
