https://plugins.jetbrains.com/plugin/10999-websequencediagrams-support
WebSequenceDiagrams Support - IntelliJ IDEs Plugin | Marketplace
Custom editor for the sequence diagram language defined by WebSequenceDiagrams.com. Supports: Preview of generated sequence diagram (default style, bitmap...
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https://www.websequencediagrams.com/
WebSequenceDiagrams - Draw sequence diagrams online in seconds
Draw sequence diagrams in seconds using this free online tool.
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