DotEditor

DotEditor provides a graphical interface for creating and editing Graphviz dot files. Users can construct nodes, edges, and subgraphs through a tree‑view UI, adjust most graph, node, and edge attributes with mouse clicks, and select colors, shapes, and arrow types from visual choosers. The application also includes a script editor that supports syntax checking, auto‑formatting, and inline rendering of the graph to an image preview.

The tool is aimed at both casual users who prefer point‑and‑click graph construction and experienced Graphviz users who need a convenient way to write and test dot scripts. It requires a local Graphviz installation, which can be provided via the system PATH or by installing the binaries from the Graphviz website.

DotEditor is distributed as pre‑built binaries for Windows, macOS, and Linux, and the source code is available under the Apache 2.0 license. The current stable release (0.3.1) includes improvements such as enhanced script formatting, string handling fixes, and a label‑editing feature.