Moving from a tool you know to one you don't is never free, even when the software is. If you're an Altium user thinking about switching to KiCad — for cost, for ownership, or because your setup changed — this is a practical guide to doing it without wrecking your workflow. No tribalism, no pretending the import button is magic.
Short version: Most Altium users can move to KiCad and keep doing professional work. You gain cost, full ownership of your toolchain, and true cross-platform freedom. You'll miss some high-speed tooling, integrated sourcing, and enterprise data management — but each of those has a workable answer if you plan for it.
Should you actually switch?
Switch if you're a solo engineer, a small hardware team, a consultant tired of seat licenses, or anyone whose boards don't hinge on Altium's high-end power-integrity or ultra-dense high-speed tooling. That covers a huge share of real-world hardware — KiCad supports up to 32 copper layers and handles it professionally.
Think twice if you do dense high-speed design (DDR4/5, high-lane-count SerDes), need power-integrity (PDN) analysis, heavily rely on Altium 365 for team data management, or depend on live supplier data wired into a large managed library. You can still switch, but you're taking on more gap-closing work. For a fuller side-by-side, see Altium vs KiCad.
What you gain, what you'll miss, and how to close the gap
Be honest with yourself before you commit. Here's the trade laid out plainly.
| What you gain | What you'll miss | How to close the gap |
|---|---|---|
| Zero license cost — free under the GPL, no seats, no renewal | Advanced high-speed tooling (impedance, matched-length groups, deep signal-integrity) | KiCad handles push-and-shove, length tuning, and differential pairs; use external SI tools for the hardest cases |
| Full ownership — your files, your toolchain, no license server | Integrated live supplier data in the library | Use JLCPCB/LCSC parts libraries and check availability during BOM review instead of inline |
| True cross-platform (Linux, macOS, Windows, identical files) | Enterprise data management (Altium 365 / Concord Pro) | Git — KiCad's text files diff and merge cleanly; add a release process on top |
| Plain-text files that version-control beautifully | One-click "Output Jobs" for the manufacturing package | Rebuild outputs with kicad-cli or an automated pipeline (more below) |
| A large, active community and no vendor lock-in | Some mature niche features (advanced rigid-flex) | Improving fast in KiCad; evaluate against your specific board needs |
None of these are dealbreakers for most teams. They're just things to set up deliberately instead of assuming they'll come across.
Importing your Altium projects into KiCad
KiCad has a built-in importer. Open KiCad, then File → Import → Non-KiCad Project (the Altium Designer importer sits here alongside Eagle and others). Point it at your .PrjPcb or the individual .SchDoc / .PcbDoc files and let it convert.
What comes across well: schematic sheets and connectivity, board outline, copper, most footprint geometry, net names, and layer stackup basics. What needs a careful eye:
- Footprints and libraries. Imported footprints often land in a project-local library rather than your clean shared libraries. Pad stacks, courtyards, and 3D model links frequently need attention.
- Complex boards. The import is good, not perfect. Dense multi-layer designs, unusual pours, and rigid-flex sections can come through with artifacts. Budget review time.
- Design rules. Rules don't map one-to-one. Re-create your constraint set in KiCad's rules editor rather than trusting the converted values.
Treat the import as a strong first draft, then verify before you manufacture anything from it. Run DRC and ERC on the converted board and compare against the original.
A realistic migration checklist
Don't migrate everything at once. Pick one representative, non-urgent board and walk it end to end first.
- Install KiCad on your platform and open a scratch project to get familiar with the panes and shortcuts.
- Import one pilot project via File → Import and note every warning the importer emits.
- Rebuild the libraries the pilot depends on — symbols and footprints — into clean, verified KiCad libraries you'll reuse (see the next section).
- Re-create design rules in the KiCad rules editor to match your manufacturer's constraints.
- Run ERC on the schematic and resolve issues; connectivity problems from import surface here.
- Run DRC on the board and compare copper, clearances, and drill data against the Altium original.
- Verify the 3D view and STEP export so mechanical fit is intact.
- Regenerate the full output package (Gerbers, drill, BOM, CPL) and diff it against your last known-good Altium outputs.
- Order or quote the pilot before trusting the workflow with production work.
- Document the differences you hit so the next board goes faster.
By the time the pilot is fabbed and verified, you'll know exactly what your remaining boards need.
Library strategy: rebuild, don't just copy
The single biggest quality lever in a migration is how you handle libraries. Resist the urge to bulk-import everything you ever made in Altium. A migration is a rare chance to leave the cruft behind.
Build a small set of clean, shared KiCad libraries: one for symbols, one for footprints, organized by function or by project as you prefer. For each part you actually use, verify the footprint against the datasheet — pad sizes, courtyard, and the 3D model. Where you can, adopt footprints from KiCad's excellent standard libraries instead of migrating your own equivalents. Your future self, and anyone who inherits the project, will thank you.
Rebuilding a professional output workflow
Here's the part people underestimate. In Altium, "Output Jobs" packaged your Gerbers, drill files, BOM, and pick-and-place into one repeatable action. After switching, that convenience is the thing you'll miss day to day — not the editor.
KiCad ships kicad-cli, a command-line tool that exports Gerbers, drill files, BOM, and more without opening the GUI. That gives you a scriptable, reproducible manufacturing package — the foundation Output Jobs gave you, minus the button. Wiring it into your process is up to you.
That's exactly the gap GoForFab closes, and it's free forever. Connect a KiCad project and every push regenerates the complete manufacturing package automatically — Gerbers, BOM, CPL, DRC/ERC reports, 3D renders — always current, always reproducible. It's the automated output workflow you had in Altium, rebuilt on a KiCad toolchain you fully own. Pair it with a proper Git version-control setup and you've replaced both Output Jobs and enterprise data management with tools that cost nothing.
The honest conclusion
Switching from Altium to KiCad is very doable, and for most teams it's worth it. The editor won't hold you back on typical boards. The real work is in the migration around it: importing carefully, rebuilding libraries with intent, and setting up the output and version-control workflow you used to get for free. Do that once, and you land on a fully-owned, cross-platform toolchain that does professional work without a renewal invoice.