yUML

What yUML is

yUML creates diagrams from text and renders them as SVG or PNG. Its documented diagram options include class, activity, use case, sequence, state, C4, journey, journey flow, roadmap, and timeline diagrams. Users can choose from eight renderer styles, including clean, midnight, sketch, napkin, and blueprint. The playground can turn a plain-English description into an editable diagram, while Fix with AI helps address DSL errors. Diagrams can be embedded in GitHub, Slack, Confluence, and Notion; SVGs can also be copied into Figma, Keynote, or Google Slides. Its API supports image embeds and authenticated rendering for scripts, CI pipelines, and server-side use. yUML offers web, API, and self-hosted options. The free plan includes public diagrams, size limits, five saved versions, five daily AI fixes, watermarked exports, and community support. Pro costs $5/user/mo and adds private diagrams, unlimited size and version history, 250 monthly AI fix credits, watermark-free exports, and developer API access. The original renderer remains for existing embeds, while new features are on app.yuml.me.