KiCad revolutionized PCB design by making it accessible to everyone. Flux builds on that foundation, offering a browser-based, AI-powered platform that takes your PCB design experience to the next level.

If you’re a KiCad user considering a switch to Flux, you might be wondering how the two platforms compare. To help you decide, we’ve broken down the key differences that set Flux apart from KiCad and how it can streamline your design process.

1. Get started with minimal configuration

In KiCad, it can take a while to configure your project to get started. Even when you find a reference project, you still need to go through several steps to import the project, libraries, and everything you need get going.

In Flux, all you have to do is open a new project and everything is ready to go! What’s more - all public projects, parts, and modules can be forked and built upon with the click of a button. Similar to GitHub, Flux has been built with reusability in mind from the very beginning.

2. All-in-one workflow that stays in sync

In KiCAD, library management, schematic editing, PCB editing, and simulation can feel like completely different flows. That can make it hard to keep track of everything and make sure your project stays in sync.

In Flux, the schematic editor, BOM, PCB editor, and simulator all work in one workflow that stays in sync in the browser. There’s also a version control system that makes it easy to revert changes.

3. Library management that just works

In KiCad, you have to maintain multiple libraries which can become extremely time-consuming to keep up to date. When sharing KiCAD designs sometimes projects will break because the reference library isn’t linked.

In Flux, there’s a single unified library that’s being constantly updated and improved upon by the community. This allows you to easily use other people’s vetted parts instead of making your own.

  • Parts can contain a footprint, 3D model & other assets, real-time availability & pricing, simulator models, infinite properties, documentation, internal schematic diagrams and more.
  • Whenever parts you’re using are updated, you’re notified and given the option to accept or reject part updates. This guarantees your parts are always error-free and up to date.
  • If you can’t find the part you’re looking for, there are few different methods for creating parts:

4. Flux Copilot has your back

Screenshot of a chatbot interface with a purple gradient background, showing Copilot's responses to user queries about hardware design. The Copilot chatbot introduces itself as a tool for assisting with hardware projects, and users ask questions related to PCB design, architecture options, and building schematics using Flux.

Flux Copilot is the industry's first AI-powered hardware design assistant integrated into a PCB design tool. With its ability to understand schematic designs, component lists, connections, and part information from datasheets, Copilot offers a wealth of knowledge and capabilities that can transform the way hardware design is approached.

  • Generate Architecture Diagrams - Flux transforms architectural design by leveraging AI to rapidly generate and evaluate a wider range of options against your specific product requirements, ensuring a more effective selection process that leads to optimal outcomes.
  • Research Components Faster - One of the most time-consuming tasks in hardware development is researching and selecting the right components. Copilot streamlines this process by using AI to analyze datasheets and suggest components that meet your project's specific requirements.
  • Review Designs - Leverage Copilot’s understanding of your project to perform AI Design Reviews, ensuring you haven't overlooked any crucial details like missing decoupling capacitors or pull up/down resistors.
  • Copilot is a conversational AI that understands your hardware project, so the use cases are really only limited by your imagination. Check out this list of our top 20 Copilot Prompts to get inspired.

Share projects & get feedback quickly

In KiCAD, files remain on your computer and sharing and getting feedback often involves sharing screenshots via emails and Slack conversations. Version control is also very difficult, especially when working with others.

In Flux, sharing with contractors, collaborators, clients, and other stakeholders is as easy as sharing a link.

  • Flux works similar to Google docs. Invite others to collaborate, control permissions, and drop comments right where the action is.
  • Automated version control makes it easy to track every single change that you or a collaborator makes and revert the document to a previous state.
  • Flux has an active community of experts who are ready to give design feedback. Feel free to join the Slack Community.

5. Best-in-class support

Two individuals wearing blue shirts collaborate while working on a laptop. One person types on the keyboard while the other looks over his shoulder, both focused on the screen.

With KiCAD, like all open source software, there is support by community members & contributors which is awesome! However, without centralized support, fixes and features can take easily up to a year.

With Flux, you have access to browser-based software where fixes and new features are instantly deployed to all users and a platform that’s updated frequently based entirely on your feedback.

  • Our centralized support team is first class, providing assistance anytime - anyday and sends your feedback directly to our product team.
    • Just send us an email if you ever have any questions!
    • If you ever run into a bug or want to request a feature, you can provide feedback in our feedback portal.
  • Our Slack community members also assist with answering questions, getting second pair of eyes, and sometimes even, getting a second pair of hands. Join our community.

Ok, I’m ready. How do I make the switch?

Making the switch to Flux is easy. Create a Flux account, follow the KiCad to Flux migration tutorial to get your projects into Flux, or follow this video tutorial:

Frequently Asked Questions

Is a Web-based app really performant?

  • Yes. Backed by a powerful 3D WebGL rendering engine that supports very large projects, we take performance seriously. Plus the Web comes with special powers, like real-time updates and seamless collaboration.

I don’t want a bunch of people in my design file...

  • Just like Google Docs, files are private unless you choose to share them with others. This means that you choose how collaborative you want to be within Flux. Sharing Flux projects has a lot of benefits: you can get instant feedback via comments directly in your design, so that means no more exporting PDFs and consolidating feedback.

I don’t have time to migrate my part library...

  • Flux has a community generated part library so you should be able to find the parts you need. We also support importing KiCAD format parts should there be anything missing. If you need help, feel free to request parts in our Slack Community in the #request-a-part channel or request parts using this form.

How much does Flux cost?

  • Flux has a free trial that is fully featured, meaning you can do everything the pros do right out of the box. You can learn more about pricing here.

How do I get help if I get stuck?

Are there any educational discounts?

  • Yes! If you’re a student or an educator you can access our professional tier for free by signing up with an edu email.
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If this sounds interesting to you and you'd like to request a demo or learn more, please contact sales.

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Nico Tzovanis

Nico is a professional electronics and PCB design engineer at Flux. Find him on Flux @nico

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Screenshot of the Flux app showing a PCB in 3D mode with collaborative cursors, a comment thread pinned on the canvas, and live pricing and availability for a part on the board.
Flux is a better way to build PCBs
Go 10x faster from idea to PCB by reducing busy work, never starting from scratch, and keeping your team in sync. All from the browser.
Screenshot of the Flux app showing a PCB in 3D mode with collaborative cursors, a comment thread pinned on the canvas, and live pricing and availability for a part on the board.
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