Request a Demo Start a Trial

Sigasi® Visual HDL

The leading toolbox for 
VHDL
Verilog
SystemVerilog
VHDL

design and verification.

The fastest way to a flawless design

Or install in VS Code to get started

Sigasi Visual HDL will install directly in Visual Studio Code.

Don’t have Visual Studio Code? Get it here first.

Not what you're looking for? Check out our other downloads.

Why Sigasi Visual HDL?

Gain actionable feedback in real time

See feedback evolve instantly as you type—no waiting for simulation or synthesis steps. Context-aware insights and actionable suggestions help you quickly spot, investigate, and correct errors.

Visualize the bigger picture

Understand complex designs with real-time, interactive graphics—including block and state machine diagrams. Empower visual thinking and navigate effortlessly between your code and visual overviews.

Accelerate your verification flow

Enjoy the benefits of actionable feedback and graphical insights fully applied to your verification code, with built-in support for all industry-standard verification frameworks, including UVM, OSVVM, UVVM, VUnit, and Cocotb.

Leverage your existing toolchain

Compatible with your existing tools and workflows, from EDA toolchains to version control systems and CI solutions. Seamlessly integrate with industry-standard documentation and reporting tools to get the most out of your setup.

Meet Functional Safety standards with ease

Ensure compliance with rigorous safety standards like DO-254, ISO 26262, and STARC. Warnings and tips guide you to follow industry or custom in-house rules, removing the hassle of meeting even the most demanding requirements.

Improve your 
Design Experience
Team Productivity
Time to Market
Design Experience

  • with deeper insights into the design,
  • a frictionless workflow,
  • and customisation to your personal preferences
to deliver high-quality designs.
  • with improved employee satisfaction,
  • stronger, more meaningful communication,
  • and flexibility in tools and frameworks
to foster a thriving team.
  • with a cost-effective design process,
  • reusability through well-documented designs,
  • and developing functional safety-compliant products
to stay ahead of competitors.

Our customers love us

"Provides software-development-like IDE capabilities that work well and greatly increase my productivity. Haven’t found another tool anywhere close to the capability. I also appreciate your connection and responsiveness to customers."

"Sigasi has streamlined our VHDL and Verilog development with smart code completion and real-time error checking, making our workflow faster and more efficient!"

Benjamin Rablat

Socomate international SAS

"Sigasi drastically improved my productivity and code quality. This allowed my company to rapidly offer top-notch designs to my customers which often ask for late changes. This advantage is crucial when working in mission and safety critical applications."

Marco Ruiz

Ectek SRL

"As a consultant who sometimes comes in mid-project, it makes navigating an unfamiliar codebase so much easier. Linting, completion, and refactoring make it quick and easy to improve/maintain code quality."

"Easy to use, fast and responsive interface and it makes mundane parts of vhdl like instantiations much more bearable and less error prone."

"Revolutionized my life 10 years ago. Still use it every day."

Mark Russell