**120,000+** PCB PROJECTS COMPLETED # PCB Design Software AI PCB design software with SI/PI and full-wave EM simulation, DDR routing, rigid-flex, mechanical design, wire harnesses, and manufacturing checks. ## AI PCB design software for high-speed routing, SI/PI simulation, rigid-flex, and complete devices. [ TRY FLUX FOR FREE ](https://flux.ai/signup) ![](https://flux.seobdtools.com/p/assets/other-pages/landing/69a7c343d966eb3a3e791d81_builders.png) Join 1,355,000+ builders ![](https://flux.seobdtools.com/p/assets/other-pages/landing/69a7c4909d6ffa1adbbebf23_pcb-1-image.webp) Partnered with your favorite manufacturers ![PCBway logo](https://flux.seobdtools.com/p/assets/homepage/partners-logo/pcbway.webp) ![nextpcb logo](https://flux.seobdtools.com/p/assets/homepage/partners-logo/nextpcb.webp) ![oshpark logo](https://flux.seobdtools.com/p/assets/homepage/partners-logo/oshpark.webp) ![jlcpcb logo](https://flux.seobdtools.com/p/assets/homepage/partners-logo/jlcpcb.webp) ![seeedstudio logo](https://flux.seobdtools.com/p/assets/homepage/partners-logo/seeedstudio.webp) ![lioncircuits logo](https://flux.seobdtools.com/p/assets/homepage/partners-logo/lioncircuits.webp) ![aisler logo](https://flux.seobdtools.com/p/assets/homepage/partners-logo/aisler.webp) ![macrofab logo](https://flux.seobdtools.com/p/assets/other-pages/landing/68e3908dcae5fd79c5369615_macrofab.svg) ## PCB design from idea to manufacturing with the help of AI Flux is a PCB design software that works like an AI hardware engineer: handling complex tasks, learning your standards, explaining its decisions, and collaborating with you at every step. ![](https://flux.seobdtools.com/p/assets/other-pages/landing/69a7cb5aa7af777b23f116c0_ste-1.png) 01 Describe Tell Flux what you're building. AI maps out your schematic and BOM for your PCB design. ![](https://flux.seobdtools.com/p/assets/other-pages/landing/69a7ca6fbe02d8b52116fac9_step-2.png) 02 Design Refine your layout with AI-assisted routing and real-time collaboration. ![](https://flux.seobdtools.com/p/assets/other-pages/landing/69a7ca7aa6aca7844d7edea1_step-3.png) 03 Manufacture Export Gerbers, BOM, and pick-and-place files, then order from any manufacturer. [ TRY FLUX FOR FREE ](https://flux.ai/signup) ## 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. ![](https://flux.seobdtools.com/p/assets/other-pages/landing/69a7cced561935898c41e57d_reason-1.jpg) ### 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" [ TRY FLUX FOR FREE ](https://flux.ai/signup) ![](https://flux.seobdtools.com/p/assets/other-pages/landing/69a7ce6b4abfcc54610fdd5c_reason-2.jpg) ### 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. [ TRY FLUX FOR FREE ](https://flux.ai/signup) ![](https://flux.seobdtools.com/p/assets/other-pages/landing/69a7ce5dd06a3808d56f38e2_reson-3.png) ### 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. [ TRY FLUX FOR FREE ](https://flux.ai/signup) ![](https://flux.seobdtools.com/p/assets/other-pages/landing/69a7ce522414229410703d5e_reason-4.png) ### 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. [ TRY FLUX FOR FREE ](https://flux.ai/signup) ![](https://flux.seobdtools.com/p/assets/other-pages/landing/69a7ce7b1db77326e7d1d21d_reason5.png) ### 5\. Start Free, Scale When Ready Flux has plans for individual builders and growing teams. [See current pricing.](https://flux.seobdtools.com/p/pricing) [ TRY FLUX FOR FREE ](https://flux.ai/signup) ## Advanced PCB design software features in Flux Flux supports circuit (SPICE) simulation, signal integrity, power integrity, full-wave electromagnetic simulation, high-speed routing, rigid-flex, and manufacturing verification. Ask Flux for the engineering result you need. It combines these capabilities with mechanical design, firmware, and wire harnesses to build the complete device. ### Signal integrity (SI) analysis Flux simulates routed signals and differential pairs. Analyze S-parameters, impedance, insertion loss, crosstalk, TDR, and eye diagrams. Ask Flux to review the results and fix the design. [Signal integrity simulation and review →](https://docs.flux.ai/reference/signal-integrity) ### Power integrity (PI/PDN) simulation Analyze PDN impedance, decoupling, load-step droop, IR drop, and plane resonance. Flux uses vendor capacitor models to select decoupling capacitors and reviews rail current and temperature. [Power integrity simulation and review →](https://docs.flux.ai/reference/power-integrity) ### Full-wave electromagnetic simulation Run full-wave EM analysis on routed copper. Inspect electric and magnetic field maps, coupling, and frequency response. Ask Flux to review reference-plane gaps and return paths for EMC. [EMC design review →](https://docs.flux.ai/reference/emc-design-review) ### Constraints, length, and delay tuning Set impedance, clearance, layer, and via rules. Flux calculates propagation delay from the stackup, converts timing budgets to route-length targets, and tunes trace length and skew. [Length and skew tuning →](https://docs.flux.ai/reference/length-and-skew-tuning) ### DDR and PCIe interface design Plan DDR topology and timing budgets. Route fly-by or T-branch address and command nets, match data lanes to strobes, and review termination, skew, and signal integrity. [DDR and PCIe PCB design →](https://docs.flux.ai/reference/ddr-and-pcie-design) ### HDI and BGA escape routing Fan out dense BGAs with blind vias, buried vias, and microvias. Define via spans in the stackup and use neckdowns to route fine-pitch pads. [HDI and BGA PCB design →](https://docs.flux.ai/reference/hdi-and-bga-design) ### Flex and rigid-flex design Define rigid and flex area stackups, coverlay, and stiffeners. Fold and twist the board in 3D, check fit in the assembly, and export the folded board as STEP. [Flex and rigid-flex boards →](https://docs.flux.ai/reference/flex-and-rigid-flex) ### ECAD–MCAD co-design Design the board and mechanical assembly together. Flux updates connector openings, mounting supports, and the board outline when either side changes. Check interference, clearances, and tolerance stack-ups. [ECAD–MCAD co-design →](https://docs.flux.ai/reference/ecad-mcad-co-design) ### Wire harness and cable engineering Connect boards, motors, sensors, and batteries. Flux defines pin-to-pin wiring, finds mating housings, and selects wire gauges and lengths. Get a harness quote and a checkout link to order. [Design wire harnesses →](https://docs.flux.ai/reference/design-wire-harnesses) ### Managed parts and sourcing Use organization-owned part libraries and team standards. Review manufacturer part numbers, lifecycle, stock, lead time, and cost. Find in-stock replacements and second sources for production. [Part sourcing and supply chain →](https://docs.flux.ai/reference/part-sourcing) ### DFM/DFA and manufacturing files Ask Flux to check fabrication and assembly requirements before you order. Review exported Gerber copper gaps, silkscreen, and board outlines. Cross-check the BOM and pick-and-place files. [Design for manufacturing and assembly →](https://docs.flux.ai/reference/design-for-manufacturing) ### Design review and release preparation Work together in the browser with project permissions, comments, and version history. Ask Flux to run design verification and prepare the manufacturing files and project documentation for review. [Design verification →](https://docs.flux.ai/reference/design-verification) For example, ask: “Review this DDR4 board. Check topology and timing budgets, tune lane-to-strobe skew, run SI and PDN simulations, and fix the issues before preparing the manufacturing files.” Or ask: “Design the mechanical assembly around this rigid-flex board. Update the mounting supports and connector openings, check folded-board clearances, and design the harness to the motor and sensors.” ## How Flux Compares to Legacy Tools Work with Flux.ai like an AI hardware engineer: handling complex tasks, learning your standards, explaining its decisions, and collaborating with you at every step. ## Legacy EDA ![Flux logo](https://flux.seobdtools.com/p/assets/misc/flux-logo.svg) ![](https://flux.seobdtools.com/p/assets/other-pages/landing/69a7ced17bd9a92d34be8289_x-sign.svg) Desktop install required ![](https://flux.seobdtools.com/p/assets/other-pages/landing/69a7d07099d4b4333c8d4774_check-flux.png) 100% Browser-based ![](https://flux.seobdtools.com/p/assets/other-pages/landing/69a7ced17bd9a92d34be8289_x-sign.svg) Design alone, email files ![](https://flux.seobdtools.com/p/assets/other-pages/landing/69a7d07099d4b4333c8d4774_check-flux.png) Real-time multiplayer ![](https://flux.seobdtools.com/p/assets/other-pages/landing/69a7ced17bd9a92d34be8289_x-sign.svg) No AI assistance ![](https://flux.seobdtools.com/p/assets/other-pages/landing/69a7d07099d4b4333c8d4774_check-flux.png) AI help built-in ![](https://flux.seobdtools.com/p/assets/other-pages/landing/69a7ced17bd9a92d34be8289_x-sign.svg) $10K+/seat licenses ![](https://flux.seobdtools.com/p/assets/other-pages/landing/69a7d07099d4b4333c8d4774_check-flux.png) Free to start [ TRY FLUX FOR FREE ](https://flux.ai/signup) ## Why are engineers switch to Flux Loved by engineers pushing hardware design forward. ### Space Engineer at Lunar Nathan Hughes "Out of all the EDA Softwares I've used, Flux is the most innovative and future-focused. We can't wait to see how much Flux can do within the next few years!" ### Founder of Happy Vendee PH Gerald Cells "With almost no electronics background, I used Flux with its embedded AI to design my boards and launch a vending machine business fast. It made hardware approachable and possible." ### 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!" ## PCB design software FAQs ### What is PCB design software? PCB design software creates schematics, places components, routes boards, and exports manufacturing files. Flux is an AI hardware engineer with these tools built in. It also designs mechanical parts, writes firmware, designs wire harnesses, and runs circuit (SPICE), electromagnetic, and thermal simulations in the same project. ### Does Flux support signal integrity, power integrity, and electromagnetic simulation? Yes. Flux supports signal integrity analysis with S-parameters, TDR, eye diagrams, impedance, and crosstalk. It supports power integrity analysis with PDN impedance, decoupling, rail droop, and IR drop. Full-wave electromagnetic simulation provides electric and magnetic field maps. Ask Flux to run the simulations, review the results, and fix the design. ### Can Flux design DDR interfaces and tune trace delay and skew? Yes. Flux plans DDR topology and timing budgets, routes fly-by or T-branch nets, and matches byte lanes to their strobes. It uses stackup propagation delay to convert timing budgets to trace-length targets, then tunes length and skew. Flux also routes impedance-controlled PCIe, USB, HDMI, and Ethernet pairs. ### Can Flux design rigid-flex boards and coordinate mechanical changes? Yes. Flux supports rigid and flex area stackups, folded 3D visualization, bend and clearance checks, and folded STEP export. Flux designs mechanical parts and assemblies around the board. Ask it to update the board, connector openings, or mounting supports when the design changes. ### Can Flux design wire harnesses and cables? Yes. Ask Flux to design the wiring between boards, motors, sensors, and batteries. It uses connector pinouts and shared nets to define pin-to-pin connections, find mating housings, and select wire gauges and lengths. Flux can prepare a wiring table, harness drawing, and bill of materials. Ask for a harness quote and a checkout link to order. ### Can Flux check a board for manufacturing and assembly? Yes. Ask Flux to check DFM and DFA requirements against your manufacturing profile, including clearances, drills, vias, component spacing, and solder-mask rules. Flux can check exported Gerbers, board outlines, silkscreen, BOM, and pick-and-place files before you order. ### What makes Flux different from Altium, Cadence, or KiCad? Flux is AI-first. Tell it the engineering result you need, and it combines design, simulation, sourcing, and manufacturing work in one project. Your team directs and edits the work in the browser. Compare the workflows in [Flux vs. Altium](https://flux.seobdtools.com/p/compare/flux-vs-altium), [Flux vs. Cadence](https://flux.seobdtools.com/p/compare/flux-vs-cadence), and [Flux vs. KiCad](https://flux.seobdtools.com/p/compare/flux-vs-kicad). ### Can I import an existing PCB project? Yes. Flux imports complete projects from Altium, Cadence OrCAD and Allegro, KiCad, Siemens PADS and Xpedition, Zuken CADSTAR, Eagle, Fusion Electronics, EasyEDA, DipTrace (XML export), and SOLIDWORKS PCB. Schematics, parts, connections, board outlines, and placement come across. Flux imports Labcenter Proteus SDF netlists with Specctra board exports. IPC-2581 revision B and C files become board projects with reusable footprint parts. IDF 2.0 and 3.0 board files become board projects with the outline, cutouts, drilled and mounting holes, part placements, and 3D part heights. Altium, OrCAD, PADS, KiCad, Eagle, Fusion Electronics, EasyEDA, and DipTrace part libraries, Allegro footprints, and JEP30 part models become Flux parts. Ask Flux to continue the imported design with mechanical parts, firmware, and manufacturing files. ### Can multiple engineers work on the same PCB design? Yes. Multiple engineers can edit the same schematic and layout in real time. Changes sync in the browser. Project permissions, comments, visual comparisons, and version history keep the review context with the design. ### How much does Flux cost? Eligible individual plans include a free trial. Teams subscriptions start paid. [See current plans and pricing.](https://flux.seobdtools.com/p/pricing) ### If you can type, you can build Join thousands of engineers already designing with AI. 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