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PADS carried a generation of mid-size hardware teams, and many of those teams are now deciding where the next decade of designs should live. The four realistic paths differ in cost, risk, and how much of your existing workflow survives.
Quick answer
PADS users evaluating a move generally have four realistic paths. Staying inside Siemens means PADS Professional or Xpedition, where the vendor's development focus now sits. Moving vendors usually means Altium Designer, the most common commercial landing spot. Going free means KiCad, which has matured into a genuine professional option with open local files. And regardless of which layout tool wins, ProtoFlow is a free AI front-end that drafts schematics from plain English, imports real distributor parts, and exports native KiCad projects, which makes it the cheapest way to modernize the early stage of a PADS-era workflow.
Last reviewed: 2026-08-10 · By ProtoFlow Engineering Team
| PADS Pro / Xpedition | Altium Designer | KiCad 10 | ProtoFlow | |
|---|---|---|---|---|
| Vendor | Siemens (stay put) | Altium | Open source | ProtoFlow |
| Pricing | Commercial, quoted | Paid per-seat licensing | Free | Free desktop app |
| Migration risk | Lowest, same vendor | Medium, new toolchain | Medium, new toolchain | Additive, changes nothing downstream |
| File ownership | Vendor formats | Vendor formats | Open local files | Native KiCad files |
| Built-in AI | None first-party | None first-party | None | Yes, first-party |
Skip the comparison shopping. Try the free one first and see if it does the job.
Download for DesktopThe trigger is rarely that PADS stopped working. It is that the ecosystem around it is consolidating: Siemens' development attention has visibly shifted toward PADS Professional and Xpedition technology, hiring pools skew toward Altium and KiCad experience, and renewal conversations invite a bigger question about whether the next tool commitment should be a migration instead.
That makes this a planning decision more than a rescue. You have time to pilot properly, and the worst outcome is switching in a hurry mid-project.
Stay with Siemens if your team depends on PADS-specific libraries, HyperLynx integration, or corporate standardization. Moving up to PADS Professional keeps vendor continuity and the least retraining.
Altium Designer is the default answer when teams want a modern commercial mainstream tool with a large hiring pool and published licensing. Budget for library rebuild time; automated translators get you part of the way and a cleanup pass finishes the job.
KiCad is the answer when license cost or file ownership drives the decision. Projects are open files on your disk, the toolchain is scriptable, and the community is enormous. The trade is that library and process discipline lands on your team.
ProtoFlow is not a fifth layout tool in this fight; it is the free AI layer you can add today. New designs start as a plain-English brief, become a real schematic with distributor parts, pass ERC and DRC, and land as a native KiCad project, which keeps every downstream option above open.
Whatever path you choose, plan for re-capture of active designs rather than perfect translation. Netlist and ASCII exports from PADS seed the process, and commercial destinations ship migration tooling, but treat translated libraries as drafts until reviewed. Check your destination tool's current importer documentation for PADS coverage before committing a schedule to it, and archive final PADS outputs, gerbers, ODB++, and PDFs, so legacy boards stay reproducible without a license.
| Criteria | ProtoFlow EDA | Siemens PADS |
|---|---|---|
| Primary strength | AI schematic creation and fast early iteration. | Established mid-range production layout flow. |
| Cost | Free desktop app. | Commercial licensing, quoted through sales. |
| Trajectory | Actively developed AI-native tool. | Vendor focus shifting toward PADS Professional and Xpedition. |
| Handoff | Exports a native KiCad project. | Native Siemens flow and formats. |
| Best deployment | Concept and schematic capture in front of any layout tool. | Maintaining established production workflows. |
Reviewed on: 2026-08-10
No. Siemens continues to offer PADS, but its roadmap emphasis has moved to PADS Professional and Xpedition-derived technology. Check Siemens' current product lifecycle notices before making long-term plans, and treat migration as a planning decision rather than an emergency.
Not directly. ProtoFlow works in native KiCad format. The practical migration pattern is re-capture: draft the schematic in ProtoFlow with AI assistance and real distributor parts, verify with ERC and DRC, and continue in KiCad or your chosen commercial tool.
KiCad for full layout, at zero license cost, with ProtoFlow in front of it for AI schematic capture. Together they cover idea to fabrication outputs without a license fee, at the cost of owning your own library discipline.
It is the most common commercial landing spot and a safe default for teams that want vendor support and a large hiring pool. Pilot one real board first; the library rebuild, not the editor, is where migration schedules slip.
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