mscgenjs-core

JavaScript library for parsing and rendering MscGen, Xù, and MsGenny sequence diagrams to SVG, GraphViz dot, Doxygen, and JSON. Current stable version: 8.0.0. Release cadence: irregular, with major version bumps for breaking changes. Key differentiators: supports three diagram languages (MscGen, Xù, MsGenny), runs in browsers and Node.js (with jsdom), provides both CommonJS and ESM modules. Requires a DOM environment (browser, electron, or jsdom).