PCB Routing You Can Direct in Plain English
Ask Flux, your AI hardware engineer, to route a complete board or selected nets. Refine pairs, trace lengths, widths, and layers in chat, in the same project as your complete device.
Route the Board. Keep the Engineering Decisions.
Route the board, finish a selected group of nets, or refine the traces you already have. Give Flux your electrical requirements and the changes you want. Keep the board, firmware, and mechanical design together as the device takes shape.
Describe: Routing Goals
Start with your schematic and placed board. Tell Flux the routing result you need, the nets to work on, and the routes you want to keep.
Example: “Route this board. Keep the component placement and the existing USB routes unchanged.”
Route: The Board or Selected Nets
Route differential pairs, matched-length groups, RF feeds, and power nets to your requirements. Ask for a complete routing pass or focus on a selected set of connections.
Route the whole board or just the connections you name.
Refine: Changes Through Chat
Ask for a wider power trace, a different routing layer, or matched trace lengths. Flux makes targeted edits and runs connectivity and design rule checks. Export manufacturing files from the same project.
Example: “Move the SPI traces to the bottom layer. Keep the USB pair unchanged.”
Less Routing Work. More Control Over the Design.
The hard part is not drawing one trace. It is keeping the important connections right while the rest of the board takes shape. Flux turns that work into a conversation about the design.
Control Your High-Speed and Power Routing
Ask for differential pairs with your target width and gap, RF feeds with your target impedance, or power traces with the width your design needs. Give Flux the requirements in the same conversation as the rest of the design.
Get routing for the connections that matter to your design, without drawing every segment by hand.
A Half-Routed Board Still Needs Work
You have placed the parts and routed the connections you care about. Ask Flux to finish the remaining nets from the board as it stands, instead of starting over.
Tell Flux which existing routes to keep and which connections you want it to finish.
A Small Change Should Stay Small
A new current target can mean a wider power trace. A revised layer strategy can mean moving a group of traces. Name the net, the change, and what must stay unchanged.
Ask for targeted route edits in chat. Flux asks before it changes routing rules.
The Team Needs One Shared Board
The hardware lead can define the priorities while another engineer reviews the routing. Everyone sees the same project in the browser, with comments and version history beside the design.
Review the work together. Continue in chat or edit traces by hand.
Routing Is Part of the Complete Device
The board lives alongside the enclosure, firmware, and manufacturing files. Flux works across these areas in the same project. Ask for a routing change on its own, or include it in a broader device revision.
From the board to the complete device, your work stays in Flux.See current pricing.
Agentic Routing Inside Your AI Hardware Engineer
Ask Flux to route a board, finish selected nets, or refine existing routes. It works with the schematic, stackup, and layout rules already in your project.
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 the board outline, and ask Flux to route a complete board or selected nets. Refine pairs, trace lengths, widths, and layers through chat.
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 Traditional Autorouters
Legacy EDA
Desktop install required
100% Browser-based
Design alone, email files
Real-time multiplayer
No AI assistance
AI help built-in
Manual part research
Live inventory
Need separate tools
All-in-one platform
$10K+/seat licenses
Free to start
Why Engineers Switch to Flux
Loved by engineers pushing hardware design forward.
Frequently Asked Questions
What Is PCB Routing Software?
PCB routing connects the pads in your schematic with copper traces and vias on the board. In Flux, ask your AI hardware engineer to route the board, work on selected connections, or refine existing traces through chat.
Can Flux route the whole board?
Yes. Ask Flux to route your board, finish remaining connections, or work on selected nets. Ask for connectivity and design rule checks and a summary of the result in chat.
How is agentic routing different from starting an autorouter?
You can give Flux a routing goal, not just start a routing pass. Ask it to prioritize named nets, finish the board, or change a specific route. Flux carries the design context through those steps in the same conversation.
Can AI route high-speed designs?
Yes. Ask Flux to route differential pairs, route groups of signals, and tune trace lengths. Give it your impedance, length, and skew targets.
Does Flux support impedance control?
Yes. Give Flux the target impedance and the nets to route. It uses the stackup to calculate trace width, and pair spacing for differential pairs.
Can I route differential pairs in Flux?
Yes. Name the positive and negative nets and give Flux the target impedance or width and gap. Ask it to route the pair and tune the lengths to your skew target.
Can I choose the routing layers?
Yes. Ask Flux to use specific copper layers for a net or a group of nets. It routes with the stackup and layout rules in the project. You can change a trace layer through chat or in the PCB editor.
What if I get stuck?
For routing prompts and steps, read the routing guide. You can also get help through in-app chat, YouTube tutorials, or help@flux.ai.
How do I refine routing in chat?
Name the net and the change. For example: “Widen the 3V3 traces to 0.5 mm. Keep the USB pair unchanged.” Ask for a targeted change and tell Flux which routes to keep unchanged.
What do I need to get started?
A modern browser (Chrome, Safari, Firefox, Edge) and an internet connection. Sign up, start your free trial on eligible individual plans, and open the editor. Tutorials are built in.
