Best Circuit Simulation Software with a Free Trial of 2026

OrCAD® X is a unified PCB design software platform. It offers significant improvements to ease of use, performance and automation. Our product suite includes applications for schematic, PCB layout, simulation and data management. OrCAD X Capture, a schematic design solution for electrical circuit creation and documentation, is one of OrCAD's most popular products. PSpice®, our virtual SPICE simulation engine integrated into Capture, allows you to prototype and verify your designs using industry-leading native analog, mixed signal, and advanced analysis engines. OrCAD X Presto and OrCAD X PCB editor are two PCB layout tools that allow designers to easily collaborate between ECAD/MCAD teams and build better PCBs faster. OrCAD X Presto is our new, simplified interface for novice designers, electrical engineers and PCB designers focused on quick turn PCB designs.

Autodesk Fusion is an integrated design and manufacturing solution that helps teams manage product development in a single cloud-connected environment. It brings together CAD, CAM, CAE, PCB, collaboration, and product data management tools so users can move from idea to production more efficiently. The platform is designed for early-stage teams, makers, professional shops, production teams, and engineering organizations that need connected workflows. Autodesk Fusion helps reduce the problems caused by disconnected tools, including broken models, file-sync issues, rework, and version conflicts. Its manufacturing capabilities support advanced CAM automation, 2D through 5-axis machining, turning, turn-mill operations, toolpathing, part inspection, probing, and editable post-processors. Fusion for Design adds advanced simulation, generative design, surfacing, mesh tools, plastic design, sheet metal tools, DFM features, and PLM support. The software also includes real-time collaboration, cloud data access, controlled project history, comments, audit trails, and secure file management. Autodesk Assistant adds AI support that can understand model-related questions and help users take action inside Fusion. By combining design, manufacturing, electronics, and data workflows, Autodesk Fusion gives teams a modern way to improve productivity and speed up product development.

Develop and test your system using Simulink prior to implementing it on actual hardware. This allows you to explore and apply innovative designs that might typically be overlooked, all without the need to engage in C, C++, or HDL programming. By modeling both the system you are testing and the physical plant, you can investigate a broader design landscape. Your entire team can benefit from a unified multi-domain platform that simulates the interactions of all system components. You can also package and share your simulation results with team members, suppliers, and clients for collaborative feedback. This approach helps minimize costly prototypes by allowing you to experiment with scenarios that might otherwise be deemed too risky or impractical. Use hardware-in-the-loop testing and rapid prototyping to confirm your design's effectiveness. With this method, you can ensure traceability throughout the process, from requirements gathering to design and code development. Rather than manually crafting thousands of lines of code, you can automatically generate high-quality C and HDL code that mirrors your original Simulink model. Finally, deploy this code directly onto your embedded processor or FPGA/ASIC for seamless integration and operation. This comprehensive approach not only streamlines development but also enhances overall project efficiency.

Numerous circuit simulators exist in the marketplace today. Their advertisements boast about high performance, remarkable speed, being industry-standard (such as SPICE), and being user-friendly with a highly intuitive interface. To determine the effectiveness of a tool, it’s best to try it out for yourself, which is exactly what many users of NL5 have done. I look forward to hearing the positive feedback they will likely share soon. It’s important to note what to anticipate from NL5: it is not just another variation of SPICE, nor can it be considered a direct substitute. In certain applications, NL5 demonstrates significant advantages, while in others it performs adequately, and there are some areas where it may not be suitable at all. Ultimately, the versatility of NL5 makes it a compelling option for specific tasks within circuit simulation.

Ansys Exalto serves as an advanced post-LVS RLCk extraction software that empowers integrated circuit (IC) designers to effectively address unknown crosstalk between various components within the design hierarchy by extracting lumped-element parasitics and creating precise models for electrical, magnetic, and substrate coupling. This tool seamlessly integrates with a wide range of LVS software and can enhance the performance of any RC extraction tool you prefer. With Ansys Exalto's post-LVS RLCk extraction capabilities, IC designers are equipped to make accurate predictions regarding electromagnetic and substrate coupling effects, allowing for signoff on circuits that may have previously been deemed "too complex to analyze." The models that are extracted can be back-annotated to the schematic or netlist, ensuring compatibility with all circuit simulators. As the prevalence of RF and high-speed circuits continues to rise in contemporary silicon systems, electromagnetic coupling has become a primary factor that necessitates precise modeling to ensure the successful fabrication of silicon. Overall, Ansys Exalto represents a crucial advancement in circuit design, helping engineers navigate the complexities associated with modern electronic systems.

Electromagnetic (EM) simulation provides valuable insights prior to the physical prototyping stage. Tailor your EM simulations to enhance both speed and precision. Seamlessly integrate EM analysis with your circuit simulations to boost overall efficiency. While EM simulations can often require several hours to complete, you can significantly reduce both import and export times by linking your EM simulation software with PathWave Circuit Design software. This integration allows you to maximize your workflow by combining EM analysis with circuit simulations effectively. The 3D EM solid modeling environment enables the creation of custom 3D objects and supports the import of existing models from various CAD platforms. This is essential for preparing a 3D geometry for 3DEM simulation, which involves defining ports, boundary conditions, and material properties. Additionally, the environment includes a Finite Difference Time Domain (FDTD) simulator, which is vital for compliance testing regarding Specific Absorption Rate (SAR) and Hearing Aid Compatibility (HAC), ensuring that your designs meet necessary regulatory standards. By utilizing these advanced features, you can streamline your design process and enhance the effectiveness of your electromagnetic analysis.

This platform offers the opportunity to create and evaluate electronic circuits while exploring various hypothetical scenarios without the concern of defective components or poor connections. CircuitLogix accommodates analog, digital, and mixed-signal circuits, and its reliable SPICE simulation provides accurate results that reflect real-world performance. Furthermore, both variants of CircuitLogix come with 3DLab, a "virtual reality" lab environment that aims to closely mimic the look and functionality of genuine devices and instruments. Within 3DLab, users can access around 30 different tools and instruments, such as batteries, switches, meters, lamps, resistors, inductors, capacitors, fuses, oscilloscopes, logic analyzers, and frequency counters. This comprehensive array of resources allows for an immersive and engaging learning experience in electronic circuit design.

Simcenter PSIM is a specialized Siemens software solution for simulating and designing power electronics, motor drives, and related control systems. It is built to help engineers calculate power converter losses, evaluate motor drive efficiency, analyze conducted EMI, and develop analog or digital control strategies. The platform combines an intuitive interface with a reliable simulation engine that helps reduce time spent fixing convergence problems. Simcenter PSIM is especially useful for high-speed switching simulations because it can handle challenging current and voltage waveforms more smoothly than many general-purpose tools. Engineers can use its design suites for power supplies, resonant LLC converters, motor drives, EMI analysis, filter design, and hybrid electric vehicle powertrain systems. The software can calculate switching and conduction losses for diodes, MOSFETs, IGBTs, SiC devices, GaN devices, and losses in inductors. It also supports automatic embedded C code generation from control schematics, helping teams shorten development time and reduce manual coding effort. Verification features such as Monte Carlo, sensitivity, and fault analysis help users evaluate design robustness and support DFMEA activities. Simcenter PSIM gives power electronics teams a fast and practical environment for simulation, control prototyping, and design validation.

Our online circuit simulator effectively connects theoretical concepts with practical application through an easy-to-use interface. This platform enables users to create, simulate, and share electronic circuits in a digital environment, allowing them to observe the interaction of components in real time. By directly manipulating circuit behavior, learning becomes more dynamic and impactful. Educators benefit from DCACLab as it enriches their teaching methods with interactive diagrams and live demonstrations, while students gain a secure environment for experimentation and insight, fostering a profound grasp of electronics. With DCACLab, challenges transform into opportunities for hands-on learning and greater understanding. Experience the capabilities of a realistic multimeter within our interactive simulator, equipped to measure ohms, voltage, and resistance, thus providing a comprehensive and authentic educational experience. Explore the fascinating realm of electronics effortlessly and with clarity, making the journey as enjoyable as it is informative.