Migration Guide

Help! Multisim Live is ending. Can I save my circuits?

Updated August 2026 · By the CircuitSim team · 6 min read

Yes! While we are all sad that Multisim Live is going away, the good news is your circuits are not doomed — they can be saved! Every circuit you have on Multisim Live can be tucked into a file on your computer today and imported into CircuitSim, where it lands with its components, wires, values, and captions all intact. The only thing you cannot do is wait: Multisim Live goes offline on September 15, 2026, and circuits still on the platform after that date are gone for good.

The short version of what is going on: National Instruments is retiring Multisim Live, and on September 15, 2026 the lights go out: no access, no downloads, no simulations. Your circuits live on NI's servers, which means "saving" them amounts to walking each one down to your own computer while the door is still open. It takes about a minute per circuit, the whole trip is drag and drop, and this page holds your hand the entire way.

TL;DR — The rescue plan

The only real deadline: download your circuits from Multisim Live before September 15, 2026. Everything after that can happen at your leisure.
Click Download, not Export, in the top-left menu — it saves a tidy little .msjs file.
Drag that file into CircuitSim from the Import button on your Circuits page. A whole semester of circuits? Zip them and import the lot in one go.
Components, wiring, and captions arrive 1:1 — and if any weird artifacts port over, the editor helps walk you through cleaning them up.

The rescue, step by step

You need two browser tabs and nothing else — no install, no conversion tool, no support ticket. One circuit takes about a minute.

Open the circuit in Multisim Live. Sign in at multisim.com and open the circuit you want to save.
Click the menu button in the top-left corner of the editor.
Select Download. (Not Export — that saves a .ms14 file for desktop Multisim, which CircuitSim can also import, but Download is the one you want today.)
Keep the file safe. An .msjs file lands in your downloads folder. That little file is your circuit — small and portable. It keeps working as an import source forever, even after the shutdown, so it is worth a proper home outside the downloads folder.
Go to your Circuits page in CircuitSim and click the Import button in the top right. (No account yet? The free plan takes about a minute to set up — no credit card.)
Drag your .msjs file in, or click to browse for it. Rescuing a whole semester? Zip the files and import the archive — the batch imports in one pass.
Configure the import and add a tag or two. A multisim tag makes every migrated circuit easy to find later.
Click Import circuit. Your schematic opens in CircuitSim with components, wiring, placement, and captions carried over.
Hooray! Add a probe, press run, and watch your circuit come back to life in its new home.

Safe and sound: what to expect on the other side

The importer maps Multisim Live components to CircuitSim's library and preserves your wiring, placement, values, net labels, and captions — so a migrated circuit looks pleasingly like the one you left behind. Two honest caveats so nothing surprises you: some wires may want a small cleanup once the circuit is in — a nudge here, a re-route there, the schematic equivalent of straightening a picture frame — and any part the importer cannot match arrives as a clearly marked placeholder symbol, so nothing ever silently vanishes. You swap the placeholder for the right part from the library, or build it as a custom component if it is something unique.

Then comes the fun part: add a probe and run it. CircuitSim runs an industry-standard SPICE engine right in your browser, with the analyses Multisim Live users actually used — interactive simulation you can poke while it runs, transient, AC sweep with Bode charts, and DC operating point — so your circuit does not merely survive the move, it settles in.

Running a class on Multisim Live?

Download your course circuits with the steps above — zip them and batch-import in one pass.
Create an educational group in CircuitSim and share the circuits to it, so the whole class works from one library.
Add student seats — students join with a link or code, and the seats collect no student personal information. The educators page has the full picture for Fall planning.

Get started free at circuitsim.com →

Frequently asked questions

When exactly does Multisim Live shut down?

September 15, 2026 is the date the platform goes offline — no access, no downloads, no simulations after that. Download your circuits before then.

What happens to circuits I do not download in time?

Once the platform goes offline they are unreachable — there is no announced way to retrieve circuits after the shutdown date. The .msjs file on your own computer is the copy nobody can take away, which is why downloading everything now — today, while you are thinking about it — is the whole point of this page.

What is the difference between Download and Export in Multisim Live?

Download saves the browser-native .msjs file; Export produces a .ms14 file for desktop Multisim. CircuitSim imports both, but Download is the recommended path for moving to CircuitSim. If you already have .ms14 exports, they work too.

Can I import many circuits at once?

Yes. Put your downloaded files in a ZIP archive and import the archive — CircuitSim brings in the whole batch in one pass. A semester of lab circuits rescues as easily as one.

Does the import work after Multisim Live shuts down?

Yes. The import reads the .msjs file on your computer, not the Multisim Live servers, so it keeps working after September 15, 2026. The only hard deadline is downloading the files while the platform is still online.

Will everything transfer perfectly?

Components, wiring, placement, values, and captions carry over. Some wires may want a small cleanup afterward, and any part CircuitSim cannot map to its library arrives as a placeholder symbol you swap for the right component. Plan a minute or two of tidying per circuit, not a rebuild.

Is CircuitSim free?

The Basic plan is free forever with no credit card — 5 circuits, 5 custom components, and up to 5 components per circuit. Paid plans start at $2.99 per month for more circuits, private circuits, and DC sweep. Importing does not require a paid plan.

I ran a class on Multisim Live. What about my students?

CircuitSim has educational groups with shared circuit libraries and student seats that collect no student personal information — students join with a link or code. Download your course circuits with the steps on this page, import them, and share them to your class group before the Fall term.

Multisim and Multisim Live are trademarks of National Instruments (Emerson). CircuitSim is not affiliated with National Instruments. Shutdown and billing dates reflect NI's public announcements as of August 2026 — confirm details on NI's site.