# Flux > Flux is a cloud-based AI hardware engineer for complete device design. It covers PCB design (ECAD), mechanical CAD (MCAD), and firmware. Teams design schematics and printed circuit boards (PCBs) together in the browser, with an AI agent that drafts, reviews, and lays out designs. Every page linked here is public. Every indexable page under `/p` has a Markdown version: append `.md` to the URL path (for example `https://www.flux.ai/p/pricing.md`). These pages also point to their mirrors with ``. Agents can also use the Flux MCP server at `https://app.flux.ai/mcp` (OAuth 2.1). The manifest is at [/.well-known/ai-catalog.json](https://www.flux.ai/.well-known/ai-catalog.json). ## Product - [Flux AI - Design PCBs with AI](https://www.flux.ai/p/index.md): Flux turns your ideas into hardware. As an intuitive AI PCB tool, it lets you describe your board while the AI plans schematics and routes traces. Try it free. - [Circuit Board Design Software & Online Circuit Builder](https://www.flux.ai/p/circuit-board-design-software.md): Design circuit boards online with Flux. Use one circuit builder for schematic capture, PCB layout, routing, design checks, collaboration, and manufacturing files. - [Contact Sales](https://www.flux.ai/p/contact-sales.md): Contact Flux to inquire about our Organization and Enterprise plans. Request a demo today and explore how we can tailor solutions to fit your needs. - [Get a Demo](https://www.flux.ai/p/demo.md): See how Flux helps hardware engineering teams design, simulate, and build complete products. - [AI Electronics Design & PCB Layout Software](https://www.flux.ai/p/eda.md): Meet Flux, your AI electronics engineer. Automatically draw schematics, route PCBs, run SPICE and thermal simulations, and write firmware in one platform. - [AI Mechanical Design & CAD Editor](https://www.flux.ai/p/mcad.md): Meet Flux, your AI mechanical engineer. Edit existing CAD and STEP files using plain text, design parts around real hardware, and run simulations before building. - [Free PCB Design Software](https://www.flux.ai/p/pcb-design-software/free.md): Great free PCB tools exist, and they've helped millions of engineers ship hardware. Flux adds something new: an AI hardware engineer that routes boards, selects components, and reviews your designs alongside you. - [PCB Routing Software](https://www.flux.ai/p/pcb-design-software/routing.md): Flux is an AI hardware engineer that learns from professionally routed boards and routes like an experienced designer, eliminating hours of manual work while respecting your design intent. - [Schematic Capture Software](https://www.flux.ai/p/pcb-design-software/schematic-capture.md): Traditional schematic capture tools are powerful drawing environments. Flux takes a different approach: describe your circuit in plain language, and the AI hardware engineer generates the architecture, selects components, and wires the schematic. - [Pricing for Explore, Build, Pro, Teams, and Enterprise Plans](https://www.flux.ai/p/pricing.md): Introducing a new way to work: Give Flux a job and it plans, explains, and executes workflows inside a full browser-based eCAD you can edit anytime. - [Featured Projects, Templates and Resources | Community](https://www.flux.ai/p/projects.md): Introducing a new way to work: Give Flux a job and it plans, explains, and executes workflows inside a full browser-based eCAD you can edit anytime. - [Start Designing PCBs With AI](https://www.flux.ai/p/start-designing.md): Turn an idea into a manufacturable PCB with Flux. Plan, research components, generate schematics, route the board, and prepare production files with AI. - [AI Hardware Engineering Platform for Teams & Enterprise](https://www.flux.ai/p/teams.md): One cloud-native platform for electrical, mechanical, firmware, and manufacturing engineering. Bring your favorite AI models into a fully integrated engineering environment built to turn ideas into working hardware. ## Solutions - [More design checks. Fewer engineer hours.](https://www.flux.ai/p/industries/automotive-aerospace.md): Flux does the design work and the simulation, and hands off clean files to your suppliers and your CAD tools. - [Ship the next product version in weeks, not quarters.](https://www.flux.ai/p/industries/consumer-electronics.md): Flux designs the board, the enclosure, and the firmware together, so they fit the first time. - [Industrial products that last. Redesigns that don't take months.](https://www.flux.ai/p/industries/industrial.md): Flux keeps many product versions current, and swaps parts when the supply changes. - [Medical hardware, checked at every step.](https://www.flux.ai/p/industries/medical-devices.md): Flux designs the board, the enclosure, the wiring, and the firmware, and checks each change before your design review. - [Boards, parts, wiring, and firmware that change together.](https://www.flux.ai/p/industries/robotics.md): Every robot version changes the electronics, the mechanics, and the code. Flux keeps all three in step. - [AI PCB Design Review for Contract Manufacturers](https://www.flux.ai/p/teams/contract-manufacturers.md): Fix customer designs before they reach your line. Flux reads the files a customer sends, applies your manufacturing rules, and helps your team quote sooner. - [AI PCB Design Software for Design Consultancies](https://www.flux.ai/p/teams/design-shops.md): Take on more client projects with the same team. Flux imports Altium, OrCAD, KiCad and STEP files, and does the schematic, layout and checks. - [AI Hardware Design for Engineering Leaders](https://www.flux.ai/p/teams/engineering-leaders.md): Give every hardware engineer a team of AI engineers. Ship more products with the same headcount, keep your CAD tools, and keep your security and design rules. - [AI Hardware Product Development for Enterprises](https://www.flux.ai/p/teams/enterprise-innovation.md): Prototype hardware at startup speed inside a large company. A small team with Flux explores more ideas and keeps your company's security and rules. - [AI Firmware Development for Embedded Systems](https://www.flux.ai/p/teams/firmware.md): Embedded firmware development from the schematic. Flux writes and tests firmware that matches the board, with the right pins, peripherals and parts. - [AI Industrial Design Software for Studios](https://www.flux.ai/p/teams/industrial-design-studios.md): Take concepts to working products. Flux keeps your design intent, adds the electronics and firmware, checks surfaces with zebra stripes, and checks fit in 3D. - [AI STEP File Editor for Machine Shops](https://www.flux.ai/p/teams/machine-shops.md): Edit customer STEP files in plain words before you cut metal. Flux changes the part, saves a new STEP file, and catches parts that cannot be made. - [Hardware Prototyping for Startups with AI](https://www.flux.ai/p/teams/startups.md): Your first hardware team from day one. Flux takes a hardware startup from idea to a board you can order, with an enclosure and firmware, before you hire. ## Company - [About Us](https://www.flux.ai/p/about.md): Introducing a new way to work: Give Flux a job and it plans, explains, and executes workflows inside a full browser-based eCAD you can edit anytime. - [Flux Brand](https://www.flux.ai/p/brand.md): Download official Flux logos, lettermarks, and brand assets in SVG, PNG, and JPG formats. Press, partners, and customers are welcome to use these assets to reference Flux. - [The Flux Manifesto](https://www.flux.ai/p/manifesto.md): Making atoms as malleable as bits - [The Flux Method](https://www.flux.ai/p/the-flux-method.md): A new way to build hardware with AI ## Learn - [Resource Center](https://www.flux.ai/p/resources.md): A curated library of technical articles, deep dives, and reference guides covering every stage of hardware engineering. - [AI & Prompt Engineering for Hardware Design](https://www.flux.ai/p/resources/ai-prompt-engineering.md): Learn how to work alongside an AI-native copilot for hardware. Master prompts to generate schematics, automate design reviews, and route buses. - [Hardware Business & Strategy Library](https://www.flux.ai/p/resources/business-strategy.md): Explore actionable guides on hardware unit economics, DFM, supply chain management, and operations to help founders and teams bring products to market. - [Component & Platform Guides: Arduino, Pi & ESP32](https://www.flux.ai/p/resources/component-platform-guides.md): Read beginner-to-intermediate breakdowns of popular hardware ecosystems. Evaluate Arduino, Raspberry Pi, and ESP32 platforms for your next PCB project. - [Hardware 101 Development: The Complete Guide](https://www.flux.ai/p/resources/hardware-development-101.md): The complete hardware development roadmap for founders and product teams. Navigate every phase from early feasibility and prototyping to mass production. - [PCB Design & Engineering Fundamentals](https://www.flux.ai/p/resources/pcb-design-fundamentals.md): Explore the core principles of electrical engineering and standard board layout mechanics. Master schematics, signal integrity, stackups, and routing. - [PCB Projects & Templates: Step-by-Step Build Guides](https://www.flux.ai/p/resources/projects-and-templates.md): Follow practical, hands-on build guides that take you from idea to functioning hardware. Skip the boilerplate setup with pre-tested PCB design templates. - [EDA Tool Comparisons & Migration Guides](https://www.flux.ai/p/resources/tool-comparisons.md): Review technical, feature-by-feature comparisons of Flux alongside Altium Designer, KiCad, and EasyEDA. Learn how to migrate your existing PCB workflows. ## Tools - [Free PCB Design Calculators & Tools](https://www.flux.ai/p/tools.md): Free, no sign-up PCB design calculators from Flux: a voltage divider calculator and a resistor color code calculator for 4-, 5- and 6-band resistors. - [Free Online Gerber Viewer — Private, In-Browser](https://www.flux.ai/p/tools/online-gerber-viewer.md): Free online Gerber viewer. Open a Gerber package or ZIP in your browser to inspect copper, solder mask, silkscreen and drill layers, flip between top and bottom views, and zoom into the detail — nothing is uploaded to a server. - [PCB Impedance Calculator (IPC-2141)](https://www.flux.ai/p/tools/pcb-impedance-calculator.md): Free PCB trace impedance calculator for microstrip, embedded microstrip, stripline, asymmetric stripline and edge or broadside coupled pairs. Enter your stack-up in your own units and get characteristic or differential impedance plus propagation delay, capacitance and inductance. - [Via Current Capacity Calculator (IPC-2221)](https://www.flux.ai/p/tools/pcb-via-size-calculator.md): Free IPC-2221 via current capacity calculator. Enter the finished hole diameter, plating thickness and temperature rise in your own units, and get the current capacity per via, plus barrel cross-section, voltage drop and power loss. - [Resistor Color Code Calculator (4, 5 & 6 Band)](https://www.flux.ai/p/tools/resistor-color-code-calculator.md): Free resistor color code calculator. Set the bands to read the resistance, tolerance and temperature coefficient of 4-band, 5-band and 6-band resistors — or enter a resistance to get its color code. - [PCB Trace Width Calculator (IPC-2221)](https://www.flux.ai/p/tools/trace-width-calculator.md): Free IPC-2221 PCB trace width calculator. Pick an external or internal conductor, enter current, temperature rise and copper thickness in your own units, and get the minimum trace width plus cross-section, resistance, voltage drop and power loss. - [Voltage Divider Calculator (Resistor Divider + E-Series)](https://www.flux.ai/p/tools/voltage-divider-calculator.md): Free voltage divider calculator, also a resistor divider calculator. Enter Vin, R1 and R2 to get the output voltage, current and power — or set a target Vout and get the exact resistor values plus the nearest standard E-series resistors, with the real-world output error. ## Compare - [Flux vs Altium: a PCB design tool and an AI hardware engineer](https://www.flux.ai/p/compare/flux-vs-altium.md): Compare Flux and Altium Designer. Altium is PCB design software that your engineers operate. Flux is an AI hardware engineer that does the design work. Bring your Altium projects in, ask Flux to change them, and get them manufactured. - [Flux vs Cadence Allegro and OrCAD: a PCB design tool and an AI hardware engineer](https://www.flux.ai/p/compare/flux-vs-cadence.md): Compare Flux and Cadence Allegro and OrCAD. Allegro and OrCAD are PCB design software that your engineers operate. Flux is an AI hardware engineer that does the design work. Bring your OrCAD and Allegro projects in, ask Flux to change them, and get them manufactured. - [Flux vs CATIA: a CAD tool and an AI hardware engineer](https://www.flux.ai/p/compare/flux-vs-catia.md): Compare Flux and CATIA. CATIA is CAD, CAM, and CAE software that your engineers operate. Flux is an AI hardware engineer that designs the board, the mechanical parts, and the firmware. - [Flux vs Claude Code: a coding agent and an AI hardware engineer](https://www.flux.ai/p/compare/flux-vs-claude.md): Compare Flux and Claude Code for hardware design. Claude Code is a general AI coding agent. Flux is an AI hardware engineer with its own schematic, board, CAD, parts, simulation, and manufacturing tools. - [Flux vs Codex: a coding agent and an AI hardware engineer](https://www.flux.ai/p/compare/flux-vs-codex.md): Compare Flux and OpenAI Codex for hardware design. Codex is a coding agent. Flux is an AI hardware engineer with its own schematic, board, CAD, parts, simulation, and manufacturing tools. - [Flux vs EasyEDA: a PCB design tool and an AI hardware engineer](https://www.flux.ai/p/compare/flux-vs-easyeda.md): Compare Flux and EasyEDA. EasyEDA is PCB design software that your engineers operate. Flux is an AI hardware engineer that does the design work. Bring your EasyEDA projects in, ask Flux to change them, and get them manufactured. - [Flux vs Fusion 360: a CAD tool and an AI hardware engineer](https://www.flux.ai/p/compare/flux-vs-fusion-360.md): Compare Flux and Autodesk Fusion. Fusion is CAD, CAM, CAE, and PCB software that your engineers operate. Flux is an AI hardware engineer that designs the board, the mechanical parts, and the firmware. - [Flux vs KiCad: a PCB design tool and an AI hardware engineer](https://www.flux.ai/p/compare/flux-vs-kicad.md): Compare Flux and KiCad. KiCad is open-source PCB design software that your engineers operate. Flux is an AI hardware engineer that does the design work. Bring your KiCad projects in, ask Flux to change them, and get them manufactured. - [Flux vs Siemens NX: a CAD tool and an AI hardware engineer](https://www.flux.ai/p/compare/flux-vs-siemens-nx.md): Compare Flux and Siemens NX. NX is CAD, CAM, and CAE software that your engineers operate. Flux is an AI hardware engineer that designs the board, the mechanical parts, and the firmware. - [Flux vs SolidWorks: a CAD tool and an AI hardware engineer](https://www.flux.ai/p/compare/flux-vs-solidworks.md): Compare Flux and SOLIDWORKS. SOLIDWORKS is 2D and 3D product development software that your engineers operate. Flux is an AI hardware engineer that designs the board, the mechanical parts, and the firmware. - [Flux vs Zuken: a PCB design tool and an AI hardware engineer](https://www.flux.ai/p/compare/flux-vs-zuken.md): Compare Flux and Zuken. Zuken makes PCB and electrical design software that your engineers operate. Flux is an AI hardware engineer that does the design work. Bring your CADSTAR projects in, ask Flux to change them, and get them manufactured. ## More pages - [Flux Blog: Company News, Product Updates & AI Hardware](https://www.flux.ai/p/company-news.md): Read the latest company news, major product announcements, and team updates from Flux. Stay informed on the newest AI-powered hardware design features. - [Design PCBs with AI](https://www.flux.ai/p/nb/design-pcb-with-ai.md): Design PCBs in your browser with AI that handles the hard parts, get real-time collaboration, and there's no install. - [PCB Design Software](https://www.flux.ai/p/nb/pcb-design-software.md): PCB design software that runs in your browser with AI that handles the hard parts, real-time collaboration, and no install. ## Documentation and API - [Documentation](https://docs.flux.ai/): user guide and reference - [Flux MCP server](https://docs.flux.ai/reference/flux-mcp-server): connect an AI agent to Flux over the Model Context Protocol - [Support](https://www.flux.ai/support): help center and contact ## Public library (Markdown mirror) - [Sitemap](https://www.flux.ai/sitemap.md): entry point to the public part library, categories and subcategories - [Sitemap XML](https://www.flux.ai/sitemap.xml): full URL list for crawlers Sitemap categories link to subcategory pages (`https://www.flux.ai/sitemap/{category}/{subcategory}.md`, paginated with `?page=N`, 25 items per page). Categories include microcontrollers (Arduino, ESP32, Raspberry Pi, STM32), passive components, active components, and connectors. Other Markdown pages follow these patterns: - User profile: `https://www.flux.ai/{username}.md` (display name, bio, stats, links to projects and components) - Organization profile: `https://www.flux.ai/{orgname}.md` - Starred projects: `https://www.flux.ai/{username}/starred.md` - Project: `https://www.flux.ai/{username}/{project-slug}.md` (description, owner, dates, visibility, stars, forks) - Component: `https://www.flux.ai/{username}/{component-slug}.md` (part specifications, electrical properties, compliance, datasheet links, distributor stock and pricing) ## Blog - [Flux Engineering Blog](https://www.flux.ai/llms-blog.txt): Technical deep dives, tutorials, and release notes.