Logic
Choose Logic for gates, buses, sequential state, arithmetic, memory, assembly, and CPU architecture.
Explore LogicLab comparison
DigiSim's labs share an account and plan framework, but they do not use a common simulation engine, editor, or project format. Select the model that matches the behavior under study.
Choose Logic for gates, buses, sequential state, arithmetic, memory, assembly, and CPU architecture.
Explore LogicChoose Relay for resistive DC networks, coil pickup and dropout thresholds, contact state, modeled operate and release delay, and electromechanical computing structures.
Explore RelayChoose Electricity for modeled batteries, meters, loads, wiring, calculated measurements, graphs, and classroom experiments.
Explore ElectricityChoose Analog for operating point, transient, AC, DC sweep, and live circuit analysis.
Explore AnalogCapability matrix
Access and export controls can depend on the current plan. Beta and release status are shown explicitly.
| Capability | Logic | Relay | Electricity | Analog |
|---|---|---|---|---|
| Representation | Multivalued digital states, buses, modeled propagation delay, high-Z and contention | Resistive DC nodes plus modeled coils, thresholds, contacts and delay | Modeled apparatus, leads, meters, loads, thermal state and damage state | Continuous circuit models solved with modified nodal analysis |
| Catalog scale | 61 component types | 11 Free-policy kinds (including text) and 112 catalog Blueprint records | 37 palette entries | 50 components |
| Guided content | 98 lessons · 22 public | 102 items · 18 public | 144 experiments · 19 public | 8 starters, including three guided pilots · full curriculum unpublished |
| Instrumentation | Pin and net inspection; 2- and 8-channel scopes; memory and pixel tools | Calculated voltage, current and lamp brightness; contact state and modeled timing | Calculated meter and oscilloscope readings, graphs, tables, notebook and fitting | YT/XY scope, traces, cursors, magnitude, phase, DC and operating-point views |
| Project format | .digi JSON | Versioned binary .relay | Internal versioned JSON; no project download UI confirmed | .analog.json project and SPICE-like .cir netlist export |
| Guest persistence | IndexedDB and file workflows | One browser-local draft per guest/account identity; supported .relay download | One browser-local draft | One browser-local draft |
| Sharing and embeds | Public Gallery, unlisted links and iframe viewer | Revocable public UUID links and iframe viewer | Unlisted clone-to-edit links; no embed confirmed | No public sharing or embed confirmed |
| Status | Released | Released | Released | Released |
Review the release stage, persistence, sharing, and file workflow before opening a blank workspace or selecting guided content.