Apache Pulsar - distributed pub-sub messaging system
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+384
STARS · LAST 30 DAYS
13
PER DAY
#40
MOST-STARRED Java
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +91 | +384 | +1.2K |
| Per day | 13 | 13 | 13 |
| Forks gained | +19 | +75 | +188 |
pulsar gained 384 stars in the last 30 days, about 13 a day, and now has 15.3K. It is about 10 years old and has averaged roughly 1.5K stars a year. It ranks #40 among Java repositories and #731 across all languages on GitHubRepo.
Trending Record
3
DAYS ON TRENDING
#2386
BEST RANK
Oct 1, 2026
FIRST APPEARANCE
Active
STATUS TODAY
pulsar has maintained a continuous presence across global trending indexes, peaking at #2386. Below is the 30-day activity profile:
💡 Overview
pulsar is an open-source project written in Java: Apache Pulsar - distributed pub-sub messaging system.
Engineered for speed, consistency, and developer ease, it solves common hurdles in event-streaming, messaging, pubsub. 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/apache/pulsar.git
cd pulsar⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
JDK 17 or higher (OpenJDK / GraalVM)
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
pulsar 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
Modern Web Interfaces
Build dynamic, responsive user experiences with component-driven architecture.
Enterprise Design Systems
Standardize design tokens, accessible widgets, and themes across engineering teams.
Interactive Data Dashboards
Render real-time telemetry, user feeds, and analytics with sub-millisecond updates.
Cross-Platform Web Apps
Deploy performant single-page applications optimized for both mobile and desktop browsers.
🚀 Getting Started
Install pulsar using your package manager: `git clone https://github.com/apache/pulsar.git`
Initialize your project workspace or configuration file for pulsar.
Import pulsar into your codebase or invoke it directly from your terminal.
Execute your test suite or run `pulsar --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
apache/pulsar is currently ranked #731 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #726 | eigent-ai/eigent | TypeScript | ★ 15.4K | Compare ↗ |
| #727 | google-deepmind/mujoco | C++ | ★ 15.4K | Compare ↗ |
| #727 | seerge/g-helper | C# | ★ 15.4K | Compare ↗ |
| #729 | open-metadata/OpenMetadata | TypeScript | ★ 15.4K | Compare ↗ |
| #730 | redis/ioredis | TypeScript | ★ 15.3K | Compare ↗ |
| #731 | apache/pulsar This Project | Java | ★ 15.3K | |
| #732 | mltframework/shotcut | C++ | ★ 15.3K | Compare ↗ |
| #733 | documenso/documenso | TypeScript | ★ 15.3K | Compare ↗ |
| #734 | yc-software/qm | TypeScript | ★ 15.3K | Compare ↗ |
| #735 | amnezia-vpn/amnezia-client | C++ | ★ 15.3K | Compare ↗ |
| #736 | theonedev/onedev | Java | ★ 15.3K | Compare ↗ |
Frequently Asked Questions
What does pulsar do? +
Apache Pulsar - distributed pub-sub messaging system
What language is pulsar written in? +
The primary language is Java. Topics include: event-streaming, messaging, pubsub, pulsar, queuing.
Is pulsar actively maintained? +
Yes, the last recorded push was on Oct 1, 2026 with 1,765 open issues being tracked.
How many stars does pulsar have? +
pulsar has 15,341 stars and 3,765 forks on GitHub.
How does pulsar rank among GitHub repositories? +
With 15,341 stars, apache/pulsar is ranked #731 globally across all repositories tracked on GitHubRepo and #40 among Java projects.
What license is pulsar distributed under? +
The repository reports a Apache-2.0 license. Always verify the repository LICENSE file for legal terms.
