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Draw a Sequence Diagram
Diagram how systems or people interact over time.
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Preview
Start typing to see your diagram…
💡 Write diagrams in Mermaid syntax — flowcharts, sequence diagrams, Gantt charts, class diagrams, and more — and export as SVG or PNG. Rendering happens entirely in your browser; nothing is uploaded.
sequence diagrams tips
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Use "->>" for a request and "-->>" for a response between participants.
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Define short aliases (participant U as User) to keep the diagram readable.
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Great for documenting API calls and auth flows in a README.
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Rendered locally in your browser.
Como funciona
1
Inserir
Enter your data into the tool above. Everything stays local to your browser.
2
Processar
The tool processes your data instantly in your browser using JavaScript. No server, no waiting.
3
Baixar
Get your result instantly. Nothing is stored after you leave the page — complete privacy.
Por que usar o nosso?
✓Completamente gratuito — sem custos ocultos, jamais
✓Sem conta, e-mail ou login necessário
✓Arquivos nunca saem do seu dispositivo
✓Sem limites de tamanho de arquivo
✓Sem marcas d'água em nenhuma saída