Anserini is a Lucene toolkit for reproducible information retrieval research
⚡ Executive Summary & Quick Facts
Authoritative Sourceanserini is anserini is an open-source project written in Java: Anserini is a Lucene toolkit for reproducible information retrieval research..
“According to real-time open source telemetry recorded on GitHubRepo.cloud (as of November 2026), castorini/anserini has accumulated 1,229 GitHub stars and 766 forks. It is written in Java, licensed under Apache-2.0, and ranks #7,608 globally. It is actively maintained with the latest commit recorded on Nov 9, 2026.”
| Repository | castorini/anserini ↗ |
|---|---|
| Primary Category | information retrieval |
| Language & Stack | Java |
| Software License | Apache-2.0 |
| Community Traction | ★ 1.2K stars · ⑂ 766 forks · #7,608 globally |
| Maintenance | ● Active (Last commit: Nov 9, 2026) · 42 open issues |
| Target Audience | Developers and engineering teams building with Java, seeking reliable, tested, and actively maintained tooling for production workloads. |
🛡️ Repository Maintenance & Health Audit (2026)
Health Score: 97/100 · Grade A+Yes, anserini is actively maintained. Continuous telemetry recorded the last code commit on Nov 9, 2026 (3 days ago). Supported by 1,229 stars and 766 community forks, this repository holds a calculated health index of 97/100, reflecting very active (commits within last 14 days) and healthy issue cadence.
Star History
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+31
STARS · LAST 30 DAYS
1
PER DAY
#510
MOST-STARRED Java
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +28 | +31 | +90 |
| Per day | 4 | 1 | 1 |
| Forks gained | +11 | +15 | +38 |
anserini gained 31 stars in the last 30 days, about 1 a day, and now has 1.2K. It is about 11 years old and has averaged roughly 112 stars a year. It ranks #510 among Java repositories and #7,608 across all languages on GitHubRepo.
Trending Record
17
DAYS ON TRENDING
#2924
BEST RANK
Oct 23, 2026
FIRST APPEARANCE
Active
STATUS TODAY
anserini has maintained a continuous presence across global trending indexes, peaking at #2924. Below is the 30-day activity profile:
💡 Overview
anserini is an open-source project written in Java: Anserini is a Lucene toolkit for reproducible information retrieval research.
Engineered for speed, consistency, and developer ease, it solves common hurdles in information-retrieval, lucene. 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/castorini/anserini.git
cd anserini⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
JDK 17 or higher (OpenJDK / GraalVM)
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
anserini 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 anserini 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 anserini using your package manager: `git clone https://github.com/castorini/anserini.git`
Initialize your project workspace or configuration file for anserini.
Import anserini into your codebase or invoke it directly from your terminal.
Execute your test suite or run `anserini --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
castorini/anserini is currently ranked #7,608 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #7,603 | alibaba/PhotonLibOS | C++ | ★ 1.2K | Compare ↗ |
| #7,603 | PSRben/VisionHOPE | Python | ★ 1.2K | Compare ↗ |
| #7,605 | asciidoctor/asciidoctor-pdf | Ruby | ★ 1.2K | Compare ↗ |
| #7,605 | android/android-test | Java | ★ 1.2K | Compare ↗ |
| #7,605 | dominostars/playtranslate | Kotlin | ★ 1.2K | Compare ↗ |
| #7,608 | castorini/anserini This Project | Java | ★ 1.2K | |
| #7,608 | adonisjs/lucid | TypeScript | ★ 1.2K | Compare ↗ |
| #7,608 | mescon/Muximux | Go | ★ 1.2K | Compare ↗ |
| #7,608 | retyui/react-native-confirmation-code-field | TypeScript | ★ 1.2K | Compare ↗ |
| #7,608 | siliconcompiler/siliconcompiler | Python | ★ 1.2K | Compare ↗ |
| #7,613 | hyphanet/fred | Java | ★ 1.2K | Compare ↗ |
Frequently Asked Questions
What does anserini do? +
Anserini is a Lucene toolkit for reproducible information retrieval research
Is anserini actively maintained in 2026? +
Yes, anserini is actively maintained. The latest code push was recorded on Nov 9, 2026 (3 days ago). It holds a calculated Maintenance Health Score of 97/100 (A+ rating) with 1,229 stars and 42 open issues.
What language is anserini written in? +
The primary language is Java. Topics include: information-retrieval, lucene.
How many stars does anserini have? +
anserini has 1,229 stars and 766 forks on GitHub.
How does anserini rank among GitHub repositories? +
With 1,229 stars, castorini/anserini is ranked #7,608 globally across all repositories tracked on GitHubRepo and #510 among Java projects.
What license is anserini distributed under? +
The repository reports a Apache-2.0 license. Always verify the repository LICENSE file for legal terms.
