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MQT DDSIM - A Quantum Circuit Simulator Based on Decision Diagrams

C++ ◇ cpp20 MIT
★163STARS
⑂41FORKS
!8ISSUES
🏆#11,643GLOBAL RANK
🔥1DAYS TRENDING
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Momentum

+10

STARS · LAST 30 DAYS

1

PER DAY

#858

MOST-STARRED C++

Window7 days30 days90 days
Stars gained+7+10+90
Per day111
Forks gained+1+3+10

ddsim gained 10 stars in the last 30 days, about 1 a day, and now has 163. It is about 7 years old and has averaged roughly 23 stars a year. It ranks #858 among C++ repositories and #11,643 across all languages on GitHubRepo.

Trending Record

ddsim has maintained a continuous presence across global trending indexes, peaking at #10833. Below is the 30-day activity profile:

💡 Overview

ddsim is an open-source project written in C++: MQT DDSIM - A Quantum Circuit Simulator Based on Decision Diagrams.

Engineered for speed, consistency, and developer ease, it solves common hurdles in cpp20, decision-diagrams, mqt. 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/munich-quantum-toolkit/ddsim.git
cd ddsim

⚙ 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

ddsim 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 ddsim 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 MIT license.

🚀 Getting Started

1

Install ddsim using your package manager: `git clone https://github.com/munich-quantum-toolkit/ddsim.git`

2

Initialize your project workspace or configuration file for ddsim.

3

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

4

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

👍 Strengths

Active community backing with 163 GitHub stars and verified adoption.
Permissive open-source distribution under the MIT 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

munich-quantum-toolkit/ddsim is currently ranked #11,643 by stars across every repository tracked on GitHubRepo. These are adjacent projects:

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#11,614 stradichenko/audiobook.koplugin C ★ 164 Compare ↗
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#11,614 tetiva-app/client Go ★ 164 Compare ↗
#11,614 agfnow/agentflow JavaScript ★ 164 Compare ↗
#11,643 munich-quantum-toolkit/ddsim This Project C++ ★ 163
#11,643 engineyard/vertebra Shell ★ 163 Compare ↗
#11,643 shvets/google-translate Ruby ★ 163 Compare ↗
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#11,643 80beans/wysihat-engine JavaScript ★ 163 Compare ↗
#11,643 nats-io/nats-pure.rb Ruby ★ 163 Compare ↗

Frequently Asked Questions

What does ddsim do? +

MQT DDSIM - A Quantum Circuit Simulator Based on Decision Diagrams

What language is ddsim written in? +

The primary language is C++. Topics include: cpp20, decision-diagrams, mqt, qiskit, quantum-simulation.

Is ddsim actively maintained? +

Yes, the last recorded push was on Oct 7, 2026 with 8 open issues being tracked.

How many stars does ddsim have? +

ddsim has 163 stars and 41 forks on GitHub.

How does ddsim rank among GitHub repositories? +

With 163 stars, munich-quantum-toolkit/ddsim is ranked #11,643 globally across all repositories tracked on GitHubRepo and #858 among C++ projects.

What license is ddsim distributed under? +

The repository reports a MIT license. Always verify the repository LICENSE file for legal terms.

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