lowRISC/opentitan
OpenTitan: Open source silicon root of trust
⚡ Executive Summary & Quick Facts
Authoritative Sourceopentitan is opentitan is an open-source project written in SystemVerilog: OpenTitan: Open source silicon root of trust..
| Repository | lowRISC/opentitan ↗ |
|---|---|
| Primary Category | developer tools |
| Language & Stack | SystemVerilog |
| Software License | Apache-2.0 |
| Community Traction | ★ 3.7K stars · ⑂ 1.1K forks · #3,021 globally |
| Maintenance | ● Active (Last commit: Oct 21, 2026) · 2,104 open issues |
| Target Audience | Developers and engineering teams building with SystemVerilog, seeking reliable, tested, and actively maintained tooling for production workloads. |
Star History
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+93
STARS · LAST 30 DAYS
3
PER DAY
#1
MOST-STARRED SystemVerilog
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +21 | +93 | +270 |
| Per day | 3 | 3 | 3 |
| Forks gained | +6 | +23 | +57 |
opentitan gained 93 stars in the last 30 days, about 3 a day, and now has 3.7K. It is about 7 years old and has averaged roughly 530 stars a year. It ranks #1 among SystemVerilog repositories and #3,021 across all languages on GitHubRepo.
Trending Record
2
DAYS ON TRENDING
#6499
BEST RANK
Oct 21, 2026
FIRST APPEARANCE
Active
STATUS TODAY
opentitan has maintained a continuous presence across global trending indexes, peaking at #6499. Below is the 30-day activity profile:
💡 Overview
opentitan is an open-source project written in SystemVerilog: OpenTitan: Open source silicon root of trust.
Engineered for speed, consistency, and developer ease, it solves common hurdles in SystemVerilog. 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 SystemVerilog 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/lowRISC/opentitan.git
cd opentitan⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
SystemVerilog environment and standard tooling
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
opentitan coordinates its core functionality through a modular SystemVerilog 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 opentitan into SystemVerilog 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 opentitan using your package manager: `git clone https://github.com/lowRISC/opentitan.git`
Initialize your project workspace or configuration file for opentitan.
Import opentitan into your codebase or invoke it directly from your terminal.
Execute your test suite or run `opentitan --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 Who Should Use This
Developers and engineering teams building with SystemVerilog, seeking reliable, tested, and actively maintained tooling for production workloads.
🏆 Nearby in the Rankings
lowRISC/opentitan is currently ranked #3,021 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #3,016 | charmbracelet/glamour | Go | ★ 3.7K | Compare ↗ |
| #3,017 | spring-io/initializr | Java | ★ 3.7K | Compare ↗ |
| #3,017 | apple/swift-async-algorithms | Swift | ★ 3.7K | Compare ↗ |
| #3,019 | BNDong/Cnblogs-Theme-SimpleMemory | JavaScript | ★ 3.7K | Compare ↗ |
| #3,020 | swiftlang/swift-syntax | Swift | ★ 3.7K | Compare ↗ |
| #3,021 | lowRISC/opentitan This Project | SystemVerilog | ★ 3.7K | |
| #3,021 | websocket-client/websocket-client | Python | ★ 3.7K | Compare ↗ |
| #3,021 | code-yeongyu/lazycodex | TypeScript | ★ 3.7K | Compare ↗ |
| #3,024 | cloudflare/workers-rs | Rust | ★ 3.7K | Compare ↗ |
| #3,024 | DeterminateSystems/nix-installer | Rust | ★ 3.7K | Compare ↗ |
| #3,026 | libjxl/libjxl | C++ | ★ 3.7K | Compare ↗ |
Frequently Asked Questions
What does opentitan do? +
OpenTitan: Open source silicon root of trust
What language is opentitan written in? +
The primary language is SystemVerilog. Topics include: software.
Is opentitan actively maintained? +
Yes, the last recorded push was on Oct 21, 2026 with 2,104 open issues being tracked.
How many stars does opentitan have? +
opentitan has 3,708 stars and 1,139 forks on GitHub.
How does opentitan rank among GitHub repositories? +
With 3,708 stars, lowRISC/opentitan is ranked #3,021 globally across all repositories tracked on GitHubRepo and #1 among SystemVerilog projects.
What license is opentitan distributed under? +
The repository reports a Apache-2.0 license. Always verify the repository LICENSE file for legal terms.
