What Flux is
Flux is an AI hardware engineer for your team. It takes a product requirement and carries the design forward across electronics, firmware, mechanical parts, simulation, and manufacturing.
Flux vs EAGLE: Bring EAGLE projects into an AI hardware engineer.
EAGLE was Autodesk's desktop software for schematic capture and PCB layout. Flux imports EAGLE projects, including PCB layout, so teams can continue design work.
What Flux and EAGLE are
What EAGLE did well
Integrated autorouter
EAGLE's autorouter supports routing strategies, design rules, multiple signal layers, and blind or buried vias.[3]
Programmable workflows
User Language Programs can access EAGLE data and create output files or custom commands.[4]
Managed libraries
EAGLE offers managed online libraries linked to a growing component catalog, with symbols, footprints, 3D models, and parametric data.[2]
How Flux stands apart
Flux starts from a product requirement, selects parts, creates the schematic, places components, and routes the board. It checks the design with simulation and design rule checks, then provides manufacturing files. The board, enclosure, and firmware stay in one project where your engineers can review and edit the result.
| Feature | Flux | EAGLE |
|---|---|---|
| Requirements and specification | The AI engineer turns your idea into requirements and a product specification, and checks the design against them. | Autodesk describes schematic capture, component placement, PCB routing, and library content.[1] |
| What it is | AI hardware engineer with integrated design tools | Desktop EDA software for schematic diagrams and PCB design.[1] |
| Where it runs | Use Flux in a web browser. Your project stays in the cloud. | Runs on Windows, macOS, and Linux.[1] |
| Who does the design work | The Flux AI engineer. Your team reviews and edits. | PCB designers use the schematic and layout editors.[1] |
| Schematic and parts | Built in. Picks from 734,000+ public parts. | Schematic editor with SPICE simulation, reusable design blocks, and electronic rule checks.[2] |
| Board layout and routing | Built in | PCB editor with schematic synchronization, alignment tools, and customizable design rules.[2] |
| Placement and routing | The AI engineer places the parts and routes the board like an experienced designer. Your engineers review and edit. | Push-and-shove, obstacle-avoidance, and integrated autorouting options.[2] |
| High-speed design | The AI engineer routes differential pairs, tunes lengths, and sets trace impedance from your stackup. Your engineers review and edit. | Differential-pair routing and automatic meanders for signal-length compensation.[3] |
| Flex and rigid-flex boards | Built in. Named stackups for rigid and flex areas, coverlay and stiffeners, hatched flex pours, bending lines with a folded 3D view and folded STEP files, flex design checks, and Gerber, ODB++, and IPC-2581 files. The AI engineer routes each area on its own layers. | Autodesk documents multilayer routing and blind or buried vias; the cited EAGLE feature pages do not specify flex stackups.[3] |
| Parts and sourcing | 734,000+ public parts, with live prices and stock from distributors | Managed online libraries and a catalog with symbols, footprints, 3D models, and parametric data.[2] |
| Simulation and design rule checks | SPICE, electromagnetic, thermal, and mechanical simulation, plus design rule checks | SPICE simulation for schematic design.[2] |
| Firmware | Writes firmware for the board it designed | Autodesk's EAGLE feature page covers electronics design; it does not describe firmware authoring.[2] |
| Wiring harnesses | Built in. Flux designs the wiring harnesses between the boards: connectors, pinouts, and wires, in the same project. | Autodesk's EAGLE overview describes schematic and PCB design, not harness design.[1] |
| Manufacturing files | Gerber, IPC-2581C, ODB++, BOM, Pick and Place, and STEP | CAM Processor output includes Gerber and drilling data.[3] |
| Quotes and orders | Quotes and orders for boards, 3D printing, CNC machining, and wire harnesses, from the project. | Autodesk recommends Fusion for electronics.[8] |
| Import from other tools | Imports EAGLE projects for all users, including PCB layout | EAGLE files from version 2.6 and newer load directly into later versions and convert automatically.[5] |
| Versions, branches, and merges | Full change history. The AI engineer forks a design into a second version, keeps both, and merges the changes that you pick. | Autodesk lists an automatic backup function.[3] |
| Who reviews the work | The whole team, in one live project in the browser: electrical, layout, mechanical, and firmware engineers | Electrical Rule Check for schematics, plus Design Rule Check and Live DRC for board layouts.[3] |
| Product images, videos, and documents | Product images, product videos, datasheets, and regulatory documents, made from the design in the project. | Exports PDF and graphic files, plus STEP or STL 3D data for mechanical CAD.[3] |
| Plus the mechanical parts too | ||
| Mechanical CAD | Built in, kernel agnostic. From an enclosure to a complete robot arm. | Exports 3D data, such as STEP or STL, for mechanical CAD systems.[3] |
| Mechanical simulation | Finite-element stress, thermal, and airflow simulation | Autodesk documents SPICE circuit simulation; its EAGLE feature page does not specify mechanical simulation.[2] |
| Mechanical manufacturing | STEP, STL, and 3MF files, plus quotes for 3D printing, CNC machining, sheet metal, and laser cutting | EAGLE's documented CAM output is for PCB Gerber plotters and drilling machines.[3] |
| CNC toolpaths and G-code | The AI engineer writes the toolpaths, the G-code, a toolpath preview, and a setup sheet for the parts that it designed. | Autodesk documents Gerber and drill output, not mechanical CNC toolpaths.[3] |
Board design, done by the AI engineer.
Routes like an experienced designer
Flux places the parts and routes the board like an experienced designer, and it respects your design intent and your layout rules.
Parts you can buy
Flux picks from 734,000+ public parts. It checks live prices and stock across distributors before it puts a part on the board.
Your layout rules
Flux checks every board against your layout rules and the capabilities of your fabricator.
Checks every datasheet
Flux reads the datasheet of every part and checks the design against its pinouts, ratings, and limits.
Bring EAGLE projects into Flux.
Import the EAGLE project, including its PCB layout, then continue the design with an AI hardware engineer.
Example request
“Find the parts on this EAGLE board that are out of stock, swap them for parts you can buy today, and update the layout.”
-
Altium Designer -
OrCAD and Allegro -
KiCad -
PADS, Xpedition, and NX -
CADSTAR -
Eagle and Fusion -
EasyEDA -
SolidWorks -
CATIA -
Creo -
Onshape
Bring your existing work
Import complete projects, part libraries, and 3D models. Schematics, parts, and placement come across, and routing from most formats.
Keep going with your AI engineer
Imported designs are ready to edit right away. Ask "move the USB cutout 3 cm left" or "make the enclosure tighter", and Flux does the work.
Get it manufactured
Flux hands you the files that your manufacturer needs: Gerber, ODB++, IPC-2581, bill of materials, and pick-and-place for the board, and STEP, STL, or 3MF for the mechanical parts.
See all file formats
- Complete projects
- 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.
- Part libraries
- Altium, OrCAD, PADS, KiCad, Eagle, Fusion Electronics, EasyEDA, and DipTrace libraries, Allegro footprints, and JEP30 part models become Flux parts.
- Mechanical files
- STEP, STL, OBJ, 3MF, and glTF models, plus DXF board outlines.
- Handoff to manufacturing and electronics tools
- Gerber, ODB++, IPC-2581, IPC-D-356 test netlists, bill of materials, pick-and-place, EDIF netlists, GenCAD, and KiCad board files.
- Handoff to mechanical design
- The full board and its parts as STEP, compressed STEP, BREP, VRML, glTF, and STL models, plus DXF layer drawings. Enclosures and brackets that Flux designs export as STEP, STL, and 3MF, ready for your mechanical tools or a 3D printer.
Orchestration
One request. A whole team of AI engineers.
Hand Flux a complete product. The lead AI engineer splits it into workstreams, starts parallel threads across projects, manages them, and reports back.
Parallel threads
Each workstream runs in its own agent thread. The main board, the daughterboards, and the enclosure come together at the same time.
Across projects
The lead engineer starts work in other projects and tracks it all from one place.
Managed for you
It monitors every thread, steers work that goes off the brief, and collects the results.
You stay in control
Changes that move an interface or resize a board wait for your approval.
A product with three daughterboards
Flux writes a brief for each board with its outline, mounting holes, connectors, and the enclosure openings they line up with. Each board gets its own project and its own AI engineer, and all three are designed in parallel. Flux then places the finished boards in the main assembly and measures clearances and connector alignment in millimeters.
Verification lab
Simulates and checks its own work before you build.
Flux doesn't stop at generating designs. The AI engineer simulates and checks its own work with professional-grade solvers, and it shows you the results.
Circuit simulation
SPICE simulation of analog, power, and mixed-signal circuits, with Monte Carlo, temperature sweep, and noise analysis, run and read by the AI engineer.
Electromagnetic simulation
Full-wave simulation of the routed board: signal integrity, power integrity, impedance, S-parameters, crosstalk, and antennas.
Design rule checks
Electrical and manufacturing rule checks on every schematic and board.
Datasheet checks
Reads the datasheet of every part and checks the design against its pinouts, ratings, and limits.
Thermal simulation
Flux runs PCB thermal analysis of the routed board at stated operating powers, plus heat and airflow simulation of the enclosure, before you build.
Fluid simulation
Airflow and cooling through the enclosure, so vents, fans, and heat sinks work before the first prototype.
Mechanical simulation
Finite-element stress analysis of brackets, enclosures, and mounts.
Sourcing
Picks parts you can buy today, at today's prices.
Flux connects directly to major electronics and mechanical parts distributors. The AI engineer picks chips, connectors, screws, and standoffs that are in stock, compares prices across distributors, and replaces parts that are at end of life before the product goes to production.
-
Digi-Key -
LCSC -
Mouser -
Arrow -
Verical -
TME -
HQonline -
McMaster-Carr -
MISUMI -
JLCMC
Manufacturing
Gets quotes from your fabricators as the design changes.
Flux gets quotes directly from the fabricators for circuit boards and assembly, 3D printing in plastic and metal, CNC machining, sheet metal, laser cutting, injection molding, casting, and wiring harnesses. The AI engineer compares price and lead time, checks the design against each fabricator's rules, keeps the quote current as the design changes, and places the order when you confirm.
Circuit boards and assembly
-
JLCPCB -
PCBWay -
OSH Park -
AISLER
Mechanical parts
-
Craftcloud - JLC 3D printing
- PCBWay 3D printing
-
Shapeways -
OSH Cut -
SendCutSend
Cables and wiring harnesses
-
MiniProto
Why teams move from desktop tools
One product for the whole design
The board, the mechanical parts, and the firmware are in one project. The agent can change the board and the mechanical parts together. You do not move files between an electronics tool, a mechanical tool, and a code editor.
Runs in your browser
There is nothing to install and no license server to manage. Flux works on any computer with a modern web browser.
One live copy of each project
Share a project with a link. Several people can edit it at the same time. Nobody sends files by email or asks which version is the latest.
No upgrades
New features and new AI models arrive in the product. You do not install a new version or move your projects to it.
Parts are ready
The Flux library has 734,000+ public parts. You do not build a part library before you start.
Your team starts in minutes
Invite people with a link. Single sign-on and project-level permissions control who sees what.
One platform
And the mechanical parts and firmware too.
Flux is not a collection of disconnected CAD applications. It is one AI-native engineering platform where every discipline shares the same project, the same data, and the same AI engineer.
-
Mechanical design
Parametric enclosures, brackets, and mounts, fitted to the real board's mounting holes and connectors. Bring in your own STEP models. One parts library for the whole product: chips and connectors, devices that are not on the board, and mechanical hardware such as screws and standoffs.
-
Firmware
Firmware for the board Flux designed, for example on Arm Cortex-M, RISC-V, AVR, or Pico, then built, analyzed, and unit tested.
Model-agnostic AI
Your favorite AI models. Our engineering superpowers.
Flux pairs frontier AI models with a state-of-the-art agent harness built for CAD and EDA. The models bring reasoning. Flux brings the engineering tools, project context, and workflows that turn that reasoning into working hardware.
- OpenAI
- Anthropic
- Google Gemini
- More as they ship
Frontier performance at 30% lower cost.
Adaptive splits every engineering job into tasks and gives each task to the model that does it best for the price. Hard design decisions go to frontier models. Routine work goes to fast, low-cost models. Independent tasks run in parallel, so complete devices come together faster. Your team works with one AI engineer, and Flux handles the delegation behind the scenes.
Frontier AI models
- Reasoning
- Planning
- Language
Flux engineering harness
- CAD and EDA tools
- Project context
- Simulation
- Design rules
Working hardware
- Schematics
- Boards
- Enclosures
- Firmware
- Fab files
- Product videos
Every frontier model, one platform
Work with the frontier models your team already trusts, inside Flux.
Engineering superpowers built in
Every model gets Flux's specialized engineering tools, project context, and workflows.
Upgrade without migrating
When a better model ships, your team gets it without switching engineering platforms.
No single-vendor lock-in
Avoid depending on any one model provider for your engineering capacity.
The right model for every step
Adaptive matches each engineering step to the model that does it best, from deep design decisions to routine checks.
Your designs stay yours.
- SOC 2-aligned cloud infrastructure
- Single sign-on (SSO)
- Project-level permissions
- Inputs and outputs are always your IP
- No training on customer data
Flux pricing
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Explore
See current pricing
Trial terms depend on your current offer.
-
Build
See current pricing
Trial terms depend on your current offer.
-
Pro
See current pricing
Trial terms depend on your current offer.
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Teams
See current pricing
Teams subscriptions start paid.
Eligible individual plans include a free trial. Teams subscriptions start paid; trial and pricing terms depend on your current offer. See all plans
When to use which
For new Autodesk electronics work, Autodesk recommends Fusion. Flux can also import EAGLE projects and continue the design in a browser.
Questions
Autodesk ended EAGLE sales and support effective June 7, 2026. Its announcement says native EAGLE design and library files can be opened in Fusion. Autodesk also states that EAGLE licensing is no longer active. Read the Autodesk announcement and the subscription FAQ.
Yes. Project import is available to all Flux users and includes PCB layout. Follow the EAGLE-to-Flux migration guide. For help editing an imported project with AI, see Using AI to edit EAGLE projects. For a step-by-step switch plan, read the EAGLE alternative guide.
Flux exports Gerber, IPC-2581C, ODB++, BOM, Pick and Place, and STEP files.
Flux positions components and routes the board to match design intent and layout rules. Your engineers can review and edit every trace.
Yes. Set rigid or flex stackups in Stackup Areas, add bend lines with a bend angle and radius, and inspect the folded board in 3D. Flux checks bend radius, routes on the layers each area uses, and exports manufacturing files. It can also get quotes from JLCPCB and PCBWay.
No. Flux provides one library with more than 734,000 public parts, including symbols, footprints, 3D models, and datasheets. Your team can add its own parts to the library.
Yes. Your team works in one active browser project, shares it with a link, and can review its version history.
Yes. Engineers review and edit the schematic, board, and other project work.
No. Flux does not train on customer data. Your inputs and outputs remain your IP.
Give Flux your next requirement.
Explore individual plan offers, or book a demo with our team.
Sources
- Autodesk EAGLE overview: https://www.autodesk.com/products/eagle/overview
- Autodesk EAGLE features: https://www.autodesk.com/products/eagle/features
- Autodesk EAGLE Help: Features: https://help.autodesk.com/cloudhelp/ENU/Fusion-ECAD/files/ECD-FEATURES.htm
- Autodesk EAGLE Help: User Language programming: https://help.autodesk.com/cloudhelp/ENU/Fusion-ECAD/files/ECD-USER-LANG-REF.htm
- Autodesk EAGLE Frequently Asked Questions: https://www.autodesk.com/support/technical/article/caas/tsarticles/ts/mUNCp0xBxwO1rJ9L5DOhL.html
- Autodesk EAGLE announcement and FAQ: https://www.autodesk.com/support/technical/article/caas/sfdcarticles/sfdcarticles/Autodesk-EAGLE-Announcement-Next-steps-and-FAQ.html
- Autodesk EAGLE subscription FAQ: https://www.autodesk.com/solutions/eagle-subscription-faq
- Autodesk Fusion for electronics: https://www.autodesk.com/products/fusion-360/blog/future-of-autodesk-eagle-fusion-360-electronics/
- Flux EAGLE-to-Flux migration guide: https://docs.flux.ai/Introduction/eagle-to-flux---migration-guide