What is the best free PCB design software?
KiCad 10 for a complete free desktop flow, and ProtoFlow for free AI schematic capture that exports to KiCad. EasyEDA is also free in the browser within the JLCPCB ecosystem.
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Roundup
The Best Free PCB Design Software in 2026
"Free" is not one thing. Some tools are fully open-source, some are free for a core workflow, some are free trials, and some are free up to a usage cap. This roundup is honest about which is which, so you know exactly what you can use at no cost.
Quick answer
The best free PCB design software in 2026: KiCad 10 for a complete free, open-source desktop flow; ProtoFlow for free AI schematic capture that exports to KiCad; EasyEDA for free browser design tied to JLCPCB; and the free tiers of Quilter or DeepPCB for AI routing. A fully free stack is ProtoFlow (capture) → KiCad (layout/routing), with optional free AI routing — no paid plan required.
Primary keyword: free pcb design software · Last reviewed: 2026-06-06 · By ProtoFlow Engineering Team
Free PCB tools — what you actually get (reviewed June 2026)
| Tool | Free offering | Stage | The catch |
|---|---|---|---|
| KiCad 10 | Fully free / open-source | Full capture → routing | No native AI; manual workflow |
| ProtoFlow | Free core AI workflow | AI schematic capture | Capture only — exports to KiCad for layout |
| EasyEDA | Free browser tier | Capture + layout + ordering | Tied to JLCPCB/LCSC ecosystem |
| Quilter | Free AI-layout tier | Routing | Scale limits; paid for larger boards |
| DeepPCB | Free tier + pay-as-you-go | Routing | Caps on layers/connections |
| Flux | Free trial only | Browser ECAD | Becomes paid; AI metered by usage |
KiCad 10 — the free, open-source backbone
KiCad is fully free and open-source, with no tiers, caps, or trials, and it handles the entire flow from schematic capture to Gerber export. It is the default recommendation for anyone who wants professional-grade PCB design without spending anything.
Its only gap for 2026 workflows is the lack of native AI, which is exactly why pairing it with a free AI capture tool upstream is so common.
ProtoFlow — free AI schematic capture
ProtoFlow is free for the core AI schematic workflow: describe a circuit in plain English, import real LCSC/DigiKey/Mouser parts, run DRC/ERC, and export a ready-to-use KiCad project, with no per-credit metering on that flow. It covers the create-the-circuit stage that other free tools skip.
Because it exports standard KiCad projects and keeps files local, it adds AI to a free stack without introducing lock-in.
EasyEDA — free in the browser
EasyEDA offers a genuinely free browser tier covering schematic and layout, and is tightly integrated with JLCPCB/LCSC for parts and ordering. It is a strong free choice if you are comfortable working inside that ecosystem.
Free AI routing — Quilter and DeepPCB tiers
Both Quilter and DeepPCB offer free entry points for AI routing, with limits on board size, layers, or connections, and paid usage for production-scale work. They route an existing board rather than create the schematic, so they sit at the end of a free stack.
The fully-free stack
To spend nothing end to end: generate and validate the schematic in ProtoFlow, export to KiCad, do layout and routing in KiCad 10, and optionally try the free tier of Quilter or DeepPCB for AI routing. That covers idea-to-board without a paid plan.
Decision Matrix
| Criteria | ProtoFlow EDA | Other "free" PCB tools (typical) |
|---|---|---|
| Free for AI schematic capture | Yes — core workflow is free. | Rare; often trial-only or routing-only. |
| Credit / usage metering | None on the core schematic flow. | Common on AI features (credits, ACUs). |
| Open-source | No, but free to use and exports to open KiCad. | KiCad is; most others are not. |
| Layout + routing included | No — exports to KiCad. | KiCad and EasyEDA include it. |
| Best free role | Create + validate the schematic at no cost. | Free full flow (KiCad) or free routing tier. |
Migration Steps
- Start with ProtoFlow for free AI schematic capture and real-part import.
- Validate with DRC/ERC and export to KiCad.
- Do free layout and routing in KiCad 10.
- Optionally try the free tier of Quilter or DeepPCB for AI routing.
How "Free" Was Judged
Reviewed on: 2026-06-06
Methodology
- Reviewed each named tool's official product, pricing, and documentation pages in June 2026.
- Compared tools by the PCB design stage they actually serve (schematic capture, layout, routing, or simulation) rather than treating them as interchangeable.
- Kept only workflow- and source-checkable claims; avoided unverifiable speed or benchmark numbers.
Findings
- Each tool is labeled by what is actually free versus trial-only or capped, based on official sites reviewed in June 2026.
- Open-source (KiCad) and free-core-workflow (ProtoFlow) are distinguished from free trials (Flux) and capped free tiers (AI routers).
- The recommended fully-free stack uses only genuinely free capabilities end to end.
Frequently Asked Questions
Is any PCB software free for commercial use?
Yes. KiCad is free and open-source for commercial use, and ProtoFlow is free for the core AI schematic workflow. Always confirm the current license terms for your situation.
Is free PCB software good enough for real products?
Often, yes. KiCad ships real, manufactured products every day, and ProtoFlow adds AI capture on top. Paid suites mainly add value for enterprise, high-reliability, or large-team production needs.
Sources
Related Resources
The Best PCB Design Software in 2026
A source-checked roundup of the best PCB design software in 2026 across every tier — free desktop (KiCad), browser (EasyEDA, Flux), AI schematic capture (ProtoFlow), AI routing (Quilter, DeepPCB), and pro suites (Altium, OrCAD).
The Best Free AI PCB Design Tools in 2026
The best free AI PCB design tools in 2026 — what you can actually use at no cost, from ProtoFlow free AI schematic capture to Quilter/DeepPCB free routing tiers and open-source KiCad.
Use ProtoFlow as the AI Layer Before KiCad Layout
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