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tools4.dev.br

Mermaid editor and technical diagrams

Create and export Mermaid diagrams online with real-time browser rendering. Use the editor to document flows, systems, and API behavior in a text format that can be versioned.

Updated June 2026

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Tools in this cluster

Markdown Editor

Edit Markdown with a local preview for documentation, issues, and technical notes.

Mermaid Reader

Render and export Mermaid diagrams as SVG or PNG.

Frequently asked questions

Are the data sent to a server?

No. The tool follows the Tools4.Dev.Br privacy pattern and runs the processing in the browser whenever possible.

Can I use the result in production?

Use the result as technical support and validate your product rules. For official data, always use the appropriate government, financial, or business source.

Does switching language change my input or generated result?

No. The language selector changes interface labels and metadata only; pasted, typed, copied, or generated content is preserved.

Do I need an account?

No. The tool is free to use and does not require registration for normal browser-based workflows.