Zopfli Compression Algorithm is a compression library programmed in C to perform very good, but slow, deflate or zlib compression.
⚡ Executive Summary & Quick Facts
Authoritative Sourcezopfli is zopfli is an open-source project written in C++: Zopfli Compression Algorithm is a compression library programmed in C to perform very good, but slow, deflate or zlib compression..
“According to real-time open source telemetry recorded on GitHubRepo.cloud (as of November 2026), google/zopfli has accumulated 3,605 GitHub stars and 359 forks. It is written in C++, licensed under Apache-2.0, and ranks #3,766 globally. It is actively maintained with the latest commit recorded on Sep 30, 2026.”
| Repository | google/zopfli ↗ |
|---|---|
| Primary Category | developer tools |
| Language & Stack | C++ |
| Software License | Apache-2.0 |
| Community Traction | ★ 3.6K stars · ⑂ 359 forks · #3,766 globally |
| Maintenance | ● Active (Last commit: Sep 30, 2026) · 130 open issues |
| Target Audience | Developers and engineering teams building with C++, seeking reliable, tested, and actively maintained tooling for production workloads. |
🛡️ Repository Maintenance & Health Audit (2026)
Health Score: 92/100 · Grade AYes, zopfli is actively maintained. Continuous telemetry recorded the last code commit on Sep 30, 2026 (43 days ago). Supported by 3,605 stars and 359 community forks, this repository holds a calculated health index of 92/100, reflecting regular maintenance (43 days ago) and healthy issue cadence.
Star History
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+10
STARS · LAST 30 DAYS
1
PER DAY
#269
MOST-STARRED C++
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +0 | +10 | +90 |
| Per day | 1 | 1 | 1 |
| Forks gained | +0 | +3 | +18 |
zopfli gained 10 stars in the last 30 days, about 1 a day, and now has 3.6K. It is about 12 years old and has averaged roughly 300 stars a year. It ranks #269 among C++ repositories and #3,766 across all languages on GitHubRepo.
Trending Record
41
DAYS ON TRENDING
#1981
BEST RANK
Sep 28, 2026
FIRST APPEARANCE
Active
STATUS TODAY
zopfli has maintained a continuous presence across global trending indexes, peaking at #1981. Below is the 30-day activity profile:
💡 Overview
zopfli is an open-source project written in C++: Zopfli Compression Algorithm is a compression library programmed in C to perform very good, but slow, deflate or zlib compression.
Engineered for speed, consistency, and developer ease, it solves common hurdles in C++. 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 C++ 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/zopfli.git
cd zopfli⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
C++20 compliant compiler (GCC 11+, Clang 13+, MSVC)
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
zopfli coordinates its core functionality through a modular C++ 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 zopfli into C++ 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 zopfli using your package manager: `git clone https://github.com/google/zopfli.git`
Initialize your project workspace or configuration file for zopfli.
Import zopfli into your codebase or invoke it directly from your terminal.
Execute your test suite or run `zopfli --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 Who Should Use This
Developers and engineering teams building with C++, seeking reliable, tested, and actively maintained tooling for production workloads.
🏆 Nearby in the Rankings
google/zopfli is currently ranked #3,766 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #3,761 | termux/proot-distro | Python | ★ 3.6K | Compare ↗ |
| #3,762 | vercel-labs/wterm | TypeScript | ★ 3.6K | Compare ↗ |
| #3,763 | erigontech/erigon | Go | ★ 3.6K | Compare ↗ |
| #3,763 | truera/trulens | Python | ★ 3.6K | Compare ↗ |
| #3,765 | AhmadHassan-BTed/Parchment | Kotlin | ★ 3.6K | Compare ↗ |
| #3,766 | google/zopfli This Project | C++ | ★ 3.6K | |
| #3,766 | apache/lucene | Java | ★ 3.6K | Compare ↗ |
| #3,768 | therealaleph/MasterHttpRelayVPN-RUST | Rust | ★ 3.6K | Compare ↗ |
| #3,769 | modelscope/evalscope | Python | ★ 3.6K | Compare ↗ |
| #3,770 | etchdroid/etchdroid | Kotlin | ★ 3.6K | Compare ↗ |
| #3,771 | mustbeperfect/definitive-opensource | Python | ★ 3.6K | Compare ↗ |
Frequently Asked Questions
What does zopfli do? +
Zopfli Compression Algorithm is a compression library programmed in C to perform very good, but slow, deflate or zlib compression.
Is zopfli actively maintained in 2026? +
Yes, zopfli is actively maintained. The latest code push was recorded on Sep 30, 2026 (43 days ago). It holds a calculated Maintenance Health Score of 92/100 (A rating) with 3,605 stars and 130 open issues.
What language is zopfli written in? +
The primary language is C++. Topics include: software.
How many stars does zopfli have? +
zopfli has 3,605 stars and 359 forks on GitHub.
How does zopfli rank among GitHub repositories? +
With 3,605 stars, google/zopfli is ranked #3,766 globally across all repositories tracked on GitHubRepo and #269 among C++ projects.
What license is zopfli distributed under? +
The repository reports a Apache-2.0 license. Always verify the repository LICENSE file for legal terms.
