I built this because I found myself constantly needing to quickly visualize architecture or sequence flows, but I hated having to log into heavy enterprise tools (or deal with their paywalls) just to render a simple diagram.
FlowViz is a clean, minimal wrapper around Mermaid v11. My main goals were speed and privacy:
Zero backend: There is no database. The rendering happens entirely in your browser via WASM/JS. Your diagram data never leaves your machine.
Instant preview: It renders live as you type.
Clean export: You can instantly download the output as a scalable SVG.
It's completely free to use with no accounts required. I'd love to hear your feedback on the UI or any feature requests you might have!
Hi HN, I'm the creator of FlowViz.
I built this because I found myself constantly needing to quickly visualize architecture or sequence flows, but I hated having to log into heavy enterprise tools (or deal with their paywalls) just to render a simple diagram.
FlowViz is a clean, minimal wrapper around Mermaid v11. My main goals were speed and privacy:
Zero backend: There is no database. The rendering happens entirely in your browser via WASM/JS. Your diagram data never leaves your machine.
Instant preview: It renders live as you type.
Clean export: You can instantly download the output as a scalable SVG.
It's completely free to use with no accounts required. I'd love to hear your feedback on the UI or any feature requests you might have!