Editor Basics

A SpiceBook notebook is a vertical sequence of cells. Each cell has a type that determines how it behaves and renders.

Cell Types

Type	Purpose	Editor
Markdown	Documentation, headings, LaTeX-style math	Rich text with live preview
SPICE	Circuit netlists for simulation	Code editor with SPICE syntax highlighting
Python	Computation and scripting	Code editor (execution planned)
Schematic	Auto-generated circuit diagrams	Read-only SVG display

Markdown cells render immediately as you type. SPICE cells require you to click Run to execute the netlist and see simulation results.

Toolbar

The notebook toolbar sits at the top of the editor and provides:

• Run All — executes every SPICE cell in order, top to bottom
• Engine selector — switch between ngspice and LTspice for the entire notebook
• Embed — opens a popover with a ready-to-copy iframe snippet for sharing
• Tags — add searchable tags to organize notebooks on the homepage

Each individual SPICE cell also has its own run and schematic buttons in the cell toolbar.

Adding and Reordering Cells

Click + Add Cell between any two cells to insert a new one. The dropdown lets you choose the cell type.

Cells can be reordered by dragging, or programmatically via the reorder API endpoint.

To delete a cell, use the cell menu (three dots) and select Delete.

Code Editor

SPICE cells use a code editor with:

• Syntax highlighting for SPICE netlist keywords (.tran, .ac, .op, etc.)
• Line numbers for referencing specific netlist lines
• Auto-indentation following SPICE conventions

Note

The editor uses the SpiceBook dark theme by default — slate backgrounds with a blue cursor. The color scheme matches the rest of the application.

Notebook Metadata

Every notebook tracks:

• Title — displayed in the gallery and browser tab
• Engine — ngspice or ltspice, applies to all SPICE cells
• Tags — free-form labels for filtering in the notebook gallery
• Created / Modified — ISO-8601 timestamps, set automatically