A free online Mermaid diagram editor that runs 100% in your browser. Write Mermaid code and see it rendered live as crisp SVG — or switch to ASCII rendering to paste diagrams into code comments, terminals, and plain-text docs. Includes themes (Default, Neutral, Forest, Dark, Base), a template library covering flowcharts, sequence, class, state, ER, Gantt, mind maps, C4, Sankey and more, plus PNG/SVG/JPG/WebP export. No signup, no server upload — your diagrams never leave your device.
Most AI image tools hand you a flat PNG. SvgUp gives you a clean, well-structured SVG you can actually edit. Describe the logo, icon, sticker, illustration or pattern you want and get a production-ready vector file. Upload a PNG or JPG and the Vectorizer turns it into an editable SVG. Refine with one prompt - new colors, layout, details - without starting over. Files open in Figma, Illustrator and Inkscape. Free credits on sign-up, commercial license on paid plans.
