Side by side
CircuitLab vs LTspice
Both stand on electrical design software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan ExtensionLinuxMac+2
Choose CircuitLab if you need browser-based schematic capture and analog or digital simulation, with sharing and export options. Look elsewhere if your intended use is safety-critical: its terms do not authorize that use. Commercial users need Pro or Enterprise.
Visit CircuitLab Free plan LinuxMacWindows
LTspice combines schematic capture, analog simulation, and waveform viewing with a substantial model library and design-tool exports. Its listed free plan specifies Windows and macOS downloads, despite the broader platform listing.
Visit LTspiceThe facts
| CircuitLab | LTspice | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Extension, Linux, Mac, Web, Windows | Linux, Mac, Windows |
| Lowest paid plan | CircuitLab Micro: $24 a year | Free or on request |
| Plans published | 9 | 1 |
| Maker | Not published | Not published |
| Website | circuitlab.com | analog.com |
| On electrical design software | #2 of 41 | #6 of 41 |
CircuitLab: what it does well
- Supports analog, digital, and mixed-mode simulation.
- Includes frequency-domain analysis and parameter sweeps.
- Exports schematics as PDF, PNG, EPS, or SVG.
- Unique circuit URLs support sharing and requests for help.
- Works offline via the Chrome Web Store.
What to know first
- Commercial use is limited to Pro and Enterprise subscriptions.
- The Student Edition requires an official .EDU email and paid school subscription.
- Enterprise has a 10-seat minimum.
LTspice: what it does well
- Includes models for many Analog Devices regulators and amplifiers.
- Imports third-party .MODEL and .SUBCKT models.
- Exports designs from five named Analog Devices tools.
- Tutorials cover simulation, waveforms, transformers, and noise analysis.
What to know first
- Free plan lists Windows and macOS downloads only.
- The pricing note lists a 90-day trial.
Alternatives to CircuitLab Alternatives to LTspice The whole list