The Base library includes general-purpose tools, as well as components whose behavior in a circuit is distinguished from other components (that is, they are treated unusually by Logisim's propagation engine).
| Poke Tool | |
| Edit Tool | |
| Select Tool | |
| Wiring Tool | |
| Text Tool | |
| Menu Tool | |
| Splitter | |
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Pin |
| Probe | |
| Clock | |
| Label |