googleprojectzero/fuzzilli
A JavaScript Engine Fuzzer
⚡ Executive Summary & Quick Facts
Authoritative Sourcefuzzilli is fuzzilli is an open-source project written in Swift: A JavaScript Engine Fuzzer..
“According to real-time open source telemetry recorded on GitHubRepo.cloud (as of November 2026), googleprojectzero/fuzzilli has accumulated 2,385 GitHub stars and 368 forks. It is written in Swift, licensed under Apache-2.0, and ranks #5,013 globally. It is actively maintained with the latest commit recorded on Nov 11, 2026.”
| Repository | googleprojectzero/fuzzilli ↗ |
|---|---|
| Primary Category | developer tools |
| Language & Stack | Swift |
| Software License | Apache-2.0 |
| Community Traction | ★ 2.4K stars · ⑂ 368 forks · #5,013 globally |
| Maintenance | ● Active (Last commit: Nov 11, 2026) · 75 open issues |
| Target Audience | Developers and engineering teams building with Swift, seeking reliable, tested, and actively maintained tooling for production workloads. |
🛡️ Repository Maintenance & Health Audit (2026)
Health Score: 97/100 · Grade A+Yes, fuzzilli is actively maintained. Continuous telemetry recorded the last code commit on Nov 11, 2026 (2 days ago). Supported by 2,385 stars and 368 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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+37
STARS · LAST 30 DAYS
1
PER DAY
#181
MOST-STARRED Swift
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +12 | +37 | +90 |
| Per day | 2 | 1 | 1 |
| Forks gained | +1 | +3 | +18 |
fuzzilli gained 37 stars in the last 30 days, about 1 a day, and now has 2.4K. It is about 8 years old and has averaged roughly 298 stars a year. It ranks #181 among Swift repositories and #5,013 across all languages on GitHubRepo.
Trending Record
43
DAYS ON TRENDING
#1643
BEST RANK
Sep 26, 2026
FIRST APPEARANCE
Active
STATUS TODAY
fuzzilli has maintained a continuous presence across global trending indexes, peaking at #1643. Below is the 30-day activity profile:
💡 Overview
fuzzilli is an open-source project written in Swift: A JavaScript Engine Fuzzer.
Engineered for speed, consistency, and developer ease, it solves common hurdles in Swift. 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 Swift 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/googleprojectzero/fuzzilli.git
cd fuzzilli⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
Swift 5.9+ / Xcode 15+ (macOS/Linux)
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
fuzzilli coordinates its core functionality through a modular Swift 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 fuzzilli into Swift 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 fuzzilli using your package manager: `git clone https://github.com/googleprojectzero/fuzzilli.git`
Initialize your project workspace or configuration file for fuzzilli.
Import fuzzilli into your codebase or invoke it directly from your terminal.
Execute your test suite or run `fuzzilli --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 Who Should Use This
Developers and engineering teams building with Swift, seeking reliable, tested, and actively maintained tooling for production workloads.
🏆 Nearby in the Rankings
googleprojectzero/fuzzilli is currently ranked #5,013 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #5,008 | CelestiaProject/Celestia | C++ | ★ 2.4K | Compare ↗ |
| #5,008 | andyrewlee/awesome-agent-orchestrators | — | ★ 2.4K | Compare ↗ |
| #5,010 | anycable/anycable | Go | ★ 2.4K | Compare ↗ |
| #5,010 | int128/kubelogin | Go | ★ 2.4K | Compare ↗ |
| #5,010 | Player-YN/BrowserKitten | JavaScript | ★ 2.4K | Compare ↗ |
| #5,013 | googleprojectzero/fuzzilli This Project | Swift | ★ 2.4K | |
| #5,014 | jpillora/overseer | Go | ★ 2.4K | Compare ↗ |
| #5,015 | apache/geode | Java | ★ 2.4K | Compare ↗ |
| #5,015 | smithy-lang/smithy | Java | ★ 2.4K | Compare ↗ |
| #5,015 | nyakang/nyaterm | Rust | ★ 2.4K | Compare ↗ |
| #5,018 | eslint-community/eslint-plugin-security | JavaScript | ★ 2.4K | Compare ↗ |
Frequently Asked Questions
What does fuzzilli do? +
A JavaScript Engine Fuzzer
Is fuzzilli actively maintained in 2026? +
Yes, fuzzilli is actively maintained. The latest code push was recorded on Nov 11, 2026 (2 days ago). It holds a calculated Maintenance Health Score of 97/100 (A+ rating) with 2,385 stars and 75 open issues.
What language is fuzzilli written in? +
The primary language is Swift. Topics include: software.
How many stars does fuzzilli have? +
fuzzilli has 2,385 stars and 368 forks on GitHub.
How does fuzzilli rank among GitHub repositories? +
With 2,385 stars, googleprojectzero/fuzzilli is ranked #5,013 globally across all repositories tracked on GitHubRepo and #181 among Swift projects.
What license is fuzzilli distributed under? +
The repository reports a Apache-2.0 license. Always verify the repository LICENSE file for legal terms.
