Alternatives
Products that do what Free Online Diagram to Image Converter does
Export Mermaid diagrams to PNG/SVG
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Diagrams that don't look like they were auto-generated
May 2026 · beauty-diagram.com
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2024 · mermaid-ascii.art
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Convert Mermaid diagrams to high-quality images in seconds
Mar 2026 · utility-app-jade.vercel.app
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Line9 is a new rendering engine for Mermaid flowchart diagrams that aims to remove the need for manual adjustment of layout. Mermaid is a popular text-based language for describing multiple types of diagrams. Several Mermaid rendering engines already exist. Most, like the original mermaid.js, use Dagre or ELK graph drawing libraries to automatically lay out their diagrams. I’ve used Mermaid for the past four years but often recreated my flowcharts in a diagram editor so that I could modify the layout to something that better suited my needs. Use Line9 when you want an automatic flowchart…
Aug 2026 · line9.ai
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2025 · docs.mermaidchart.com
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2020 · github.com
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2025 · github.com
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I was building a Rust-based agentic coding TUI and needed to render Mermaid diagrams. Noticed the official mermaid-cli spawns a full browser instance (Puppeteer/Chrome) just to render diagrams. Decided to fix this. mmdr is a native Rust renderer. No browser, no Node.js. mermaid-cli: ~3000ms per diagram mmdr: ~3ms per diagram Supports 13 diagram types: flowchart, sequence, class, state, ER, pie, gantt, timeline, journey, mindmap, git graph, XY chart, and quadrant.
Feb 2026 · github.com
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