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google/xls

XLS: Accelerated HW Synthesis

C++ ◇ compiler Apache-2.0
★1.9KSTARS
⑂293FORKS
!1,158ISSUES
🏆#2,848GLOBAL RANK
🔥1DAYS TRENDING
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Momentum

+48

STARS · LAST 30 DAYS

2

PER DAY

#213

MOST-STARRED C++

Window7 days30 days90 days
Stars gained+14+48+180
Per day222
Forks gained+1+6+15

xls gained 48 stars in the last 30 days, about 2 a day, and now has 1.9K. It is about 6 years old and has averaged roughly 322 stars a year. It ranks #213 among C++ repositories and #2,848 across all languages on GitHubRepo.

Trending Record

xls has maintained a continuous presence across global trending indexes, peaking at #3711. Below is the 30-day activity profile:

💡 Overview

xls is an open-source project written in C++: XLS: Accelerated HW Synthesis.

Engineered for speed, consistency, and developer ease, it solves common hurdles in compiler, high-level-synthesis, hls. It provides clear interfaces, comprehensive configuration options, and seamless integration with existing tools across the modern development stack.

⚡ Key Features

1

Optimized execution pipeline written in C++ for predictable speed.

2

Zero-friction configuration with comprehensive sensible defaults out of the box.

3

Cross-platform runtime support across Linux, macOS, and Windows environments.

4

Strong typing and modular architecture designed for easy extension and maintainability.

5

Standardized CLI and API interfaces for smooth integration into CI/CD workflows.

6

Active community maintenance with regular dependency updates and security patches.

📥 Installation

terminal
$ git clone https://github.com/google/xls.git
cd xls

⚙ 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

xls 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 xls 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

1

Install xls using your package manager: `git clone https://github.com/google/xls.git`

2

Initialize your project workspace or configuration file for xls.

3

Import xls into your codebase or invoke it directly from your terminal.

4

Execute your test suite or run `xls --help` to verify successful setup.

👍 Strengths

Active community backing with 1,929 GitHub stars and verified adoption.
Permissive open-source distribution under the Apache-2.0 license.
Built in C++ for high execution speed and developer familiarity.
Cross-platform compatibility across modern Linux, macOS, and Windows environments.
Clean modular design allowing flexible configuration and pipeline integration.

⚠️ Considerations

Requires familiarity with C++ and modern CLI workflows.
Ecosystem extensions may require manual configuration depending on environment constraints.
Active development roadmap means breaking API changes may occur across major versions.

⇄ Alternatives & Direct Competitors

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👥 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/xls is currently ranked #2,848 by stars across every repository tracked on GitHubRepo. These are adjacent projects:

RankRepositoryLanguageStarsAction
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#2,848 google/xls This Project C++ ★ 1.9K
#2,848 ZalithLauncher/ZalithLauncher2 Kotlin ★ 1.9K Compare ↗
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Frequently Asked Questions

What does xls do? +

XLS: Accelerated HW Synthesis

What language is xls written in? +

The primary language is C++. Topics include: compiler, high-level-synthesis, hls, mid-level-synthesis, open-source.

Is xls actively maintained? +

Yes, the last recorded push was on Oct 2, 2026 with 1,158 open issues being tracked.

How many stars does xls have? +

xls has 1,929 stars and 293 forks on GitHub.

How does xls rank among GitHub repositories? +

With 1,929 stars, google/xls is ranked #2,848 globally across all repositories tracked on GitHubRepo and #213 among C++ projects.

What license is xls distributed under? +

The repository reports a Apache-2.0 license. Always verify the repository LICENSE file for legal terms.

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