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PCB Design Software

PCB design software that runs in your browser with AI that handles the hard parts, real-time collaboration, and no install.

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PCB design from idea to manufacturing with the help of AI

Flux is a PCB design software that works like an engineering intern: automating the grunt work, learning your standards, explaining its decisions, and checking in for feedback at key moments.

01

Describe

Tell Flux what you're building. AI maps out your schematic and BOM for your PCB design.

02

Design

Refine your layout with AI-assisted routing and real-time collaboration.

03

Manufacture

Export Gerbers, BOM, and pick-and-place files, then order from any manufacturer.

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5 Reasons to Choose Flux as Your PCB Design Software

More than traditional PCB design tools. A cloud-native, AI-powered PCB design software platform.

1. AI-Powered PCB Design That Handles the Tedious Work

Flux AI takes on part research, component placement, route optimization, and design rule checks so you spend less time on repetitive PCB design tasks and more time on the decisions that matter.

"From hours to minutes on routing iterations"

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2. Real-Time Collaboration, Like Google Docs for Hardware

Multiple engineers on the same board, at the same time. Comment, review, and iterate on your PCB design without emailing files back and forth. Version history built in.

PCB design teams ship 40% faster with real-time review.

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3. Browser-Based — No Install, No License Keys

Open a tab and start your PCB design. Flux runs entirely in your browser with no downloads, no license management, no OS compatibility headaches. Works on Mac, Windows, Linux, Chromebook.

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4. Complete PCB Design Workflow in One Platform

Schematic capture, PCB layout, simulation, BOM generation, and Gerber export all in one PCB design software. No more switching between tools, no file format juggling.

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5. Start Free, Scale When Ready

Flux's starter tier includes everything you need for personal projects and learning. When your team grows, Pro and Enterprise plans add advanced collaboration, priority support, and team management.

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PCB design software features in Flux

More than traditional PCB design tools. A cloud-native, AI-powered PCB design software platform.

AI-Powered Design Assistance

Flux AI handles part research, schematic generation, component placement, routing, and design rule checks. Describe what you want to build, and AI delivers a starting point you can refine.

Schematic Capture

Create and edit schematics with a full component library. Every change syncs instantly to your PCB layout, keeping your design consistent throughout.

PCB Layout and Routing

Place components, define board outlines, and route traces with AI assistance. Flux supports multi-layer designs with impedance-aware routing and real-time DRC.

Live Component Data

Design with real-time inventory, pricing, and alternate part suggestions. Your BOM is always sourced and ready to order.

SPICE Simulation

Validate your design before manufacturing with built-in SPICE simulation. Test circuits, verify parameters, and catch issues early.

Cloud Collaboration

Work with your team in real time on the same schematic and layout. Built-in version control, comments, and role-based permissions keep everyone aligned.

How Flux Compares to Legacy Tools

Work with Flux.ai like an engineering intern: automating the grunt work, learning your standards, explaining its decisions, and checking in for feedback at key moments.

Legacy EDA

Desktop install required

100% Browser-based

Design alone, email files

Real-time multiplayer

No AI assistance

AI help built-in

$10K+/seat licenses

Free to start

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Start your free trial

Start your free trial. Risk free. Cancel anytime.

Save with yearly

Starter

Get started with Flux
$20
per month
Choose Starter
Free for 14 days! Cancel anytime

AI chat and task completion

10 ACUs/month included

$2.50 per additional ACU

Up to 50 private projects

Unlimited public projects

KiCad part import

Pro

Everything you need to design and build
BEST VALUE
$142
per month / editor
Choose Pro
Free for 14 days! Cancel anytime

AI chat and task completion

100 ACUs/month/editor included

$2 per additional ACU

Unlimited private projects

Up to 20 editors per project

KiCad part import

Altium & Cadence project import

Starter

Get started with Flux
$16
per month, billed annually
Choose Starter
Free for 14 days! Cancel anytime

AI chat and task completion

10 ACUs/month included

$2.50 per additional ACU

Up to 50 private projects

Unlimited public projects

KiCad part import

Pro

Everything you need to design and build
BEST VALUE
$112
per month / editor, billed annually
Choose Pro
Free for 14 days! Cancel anytime

AI chat and task completion

100 ACUs/month/editor included

$2 per additional ACU

Unlimited private projects

Up to 20 editors per project

KiCad part import

Altium & Cadence project import

Why are engineers switch to Flux

Loved by engineers pushing hardware design forward.

Praxis Manufacturing Founder

Nick Parker

"This is Figma for circuit design - ridiculously slick software in a space where everyone else's UX is stuck in 2005. I'm beyond hyped to see this take over!"

Founder at Controller Adapter

Robert Dale Smith

"Tools like Flux are going to just continue to breakdown barriers and make it even easier for anyone to start creating hardware."

Founder and CEO of Seeed Studio

Eric Pan

"Flux with its AI will enable more people to design their own hardware. Seeed is gladly joining the efforts by bringing the latest open hardware designs to Flux public library!"

Frequently Asked Questions

What is PCB design software?

PCB design software is a tool that lets engineers create schematics, design board layouts, place components, route traces, and export manufacturing files. Flux is PCB design software that runs entirely in the browser with AI assistance built in.

How much does Flux cost?

When you sign up you get a free two-week free trial — risk-free, cancel anytime. Then paid plans start at $20 per month for starter, $142 per month for pro, and $158 per month for teams. Each tier includes a number of monthly ACUs. Beyond that, additional ACUs are charged based on your usage, with a configurable spend limit.

What makes Flux different from other PCB design software?

Three things: it's browser-based (no install), AI-powered (handles part research, placement, routing, and design checks), and collaborative (real-time multiplayer like Google Docs). Most PCB design software requires a desktop install, has no AI, and forces you to work alone.

Can I import projects from Altium, Cadence, or KiCad?

Yes. Flux supports importing from KiCad, Eagle, Altium, and other common EDA formats. Your existing libraries and footprints carry over.

Can I export for manufacturing?

Yes. Export Gerbers, BOM, and pick-and-place files for any manufacturer. Flux is compatible with PCBWay, JLCPCB, OSH Park, and others.

How capable is the AI, and what are its limits?

Flux AI handles part research, schematic generation, component placement, route optimization, and design rule checks. It works best as a collaborator: it makes suggestions and explains its reasoning, and you make the final call. It accelerates your workflow but does not replace engineering judgment.

What is the difference between PCB design and PCB layout?

PCB design covers the full workflow from schematic to manufacturing. PCB layout is one step within that, focused on component placement and trace routing on the physical board. Flux handles both in one platform.

Can multiple engineers work on the same PCB design?

Yes. Flux supports real-time collaboration with multiple engineers on the same schematic and layout simultaneously. Changes sync instantly, and version history tracks every edit.

If you can type,
you can build