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Upload a diagram image
Start from a flowchart screenshot, exported diagram image, or clear PDF page.
image to mermaid
Image to Mermaid Converter
Upload a flowchart screenshot, diagram image, or PDF page and convert the visible structure into editable Mermaid code you can review, refine, and use in documentation.
Converts visible flowchart structure into an editable Mermaid code draft.
Useful for Markdown, GitHub, Notion, README files, and technical documentation.
Review the result on canvas, then copy or export the latest Mermaid source when available.
Supported inputs
PNGJPGJPEGWEBPGIFPDF
Before and after
From diagram image to editable Mermaid code
Upload a flowchart screenshot, diagram image, or PDF page. ChatFlowchart rebuilds the structure and generates Mermaid code you can copy into docs, GitHub, or Markdown.
Before
Diagram image or PDF page
Static visual source
After
Mermaid code and rendered preview
Code you can copy, edit, and render
Mermaid codeRendered previewMarkdown-readyEditable labels
Flat file vs rebuilt diagram
Diagram locked in an imageFlow rebuilt as Mermaid syntax
Manual redraw neededCopy code into docs
Labels are visual onlyRename labels in code
Hard to versionReview changes in text diffs
What to expect
Best for clear flowcharts and architecture diagrams. Review dense labels and branch directions before publishing.
Generate Mermaid codeHow conversion works
Start with the source file, let AI rebuild the visible structure, then review the editable result on canvas.
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AI rebuilds the diagram
ChatFlowchart detects visible steps, decisions, labels, arrows, and connector direction.
3
Review Mermaid code
Open the generated canvas, check the structure, and use the latest Mermaid source when available.
Editable result
What you can edit after conversion
ChatFlowchart rebuilds the visible diagram as editable diagram objects, so the output can be reviewed and refined instead of staying locked inside a flat image.
Labels
Review and edit the visible text labels after the diagram is rebuilt.
Shapes
Move, resize, add, or remove process boxes, decision nodes, and other diagram elements.
Connectors
Reconnect arrows, adjust flow direction, and fix unclear branches when needed.
Layout
Clean up spacing, alignment, grouping, and reading order on the editable canvas.
Style
Apply sketch or modern styling before exporting the final diagram.
Use cases
Built for real diagram recovery workflows
Each converter page focuses on a specific output goal, so you can start with the format or workflow you need.
GitHub docs
Convert diagram screenshots into Mermaid source for README files and engineering docs.
Markdown documentation
Recreate flowcharts as text-based diagrams for docs sites, wikis, and knowledge bases.
Notion notes
Recover diagram structure from screenshots before adding the process to team notes.
Architecture notes
Turn simple architecture diagrams into editable Mermaid code drafts for technical planning.
Process diagrams
Convert workflow screenshots into Mermaid flowcharts that are easier to edit and maintain.
Details
What to know before converting
Convert images and screenshots to Mermaid code
Image to Mermaid conversion is useful when a flowchart or process diagram only exists as a screenshot, export, or PDF page, but you need editable Mermaid code for documentation.
ChatFlowchart rebuilds the visible diagram structure into an editable draft so you can review the flow, refine the labels, and use the Mermaid source where available.
Create code-backed diagrams for docs workflows
A screenshot to Mermaid workflow helps developers, product teams, and technical writers turn static diagrams into code-backed diagrams for Markdown, GitHub, Notion, README files, and docs.
For best results, start with high-contrast flowcharts, decision trees, and process diagrams with readable labels. Dense screenshots, tiny text, or complex non-flowchart layouts may need manual cleanup.
Results and quality
Supported outputs and best results
Images, screenshots, whiteboard photos, and PDF uploads are supported. Text-based PDFs can be extracted directly, while scanned PDFs work best when the diagram, labels, and arrows are clearly visible.
Supported inputs
PNGJPGJPEGWEBPGIFPDF text extraction
Supported outputs
Editable ChatFlowchart canvasPNGSVGPDFDraw.io FileMermaidShare link
Export availability follows the current ChatFlowchart canvas export options.
Editable canvas
- Free
- Yes
- Pro
- Yes
- Notes
- Core workspace for reviewing and refining the rebuilt diagram.
PNG
- Free
- Watermarked
- Pro
- No watermark / high-res
- Notes
- Best for quick sharing, presentations, and visual documentation.
SVG
- Free
- Limited
- Pro
- Yes
- Notes
- Best for scalable documentation, websites, and design handoff.
- Free
- Limited
- Pro
- Yes
- Notes
- Useful for sharing the cleaned diagram as a document.
Draw.io File
- Free
- Limited
- Pro
- Yes
- Notes
- Available for Draw.io-compatible editable diagram workflows.
Mermaid
- Free
- Copy when available
- Pro
- Advanced export
- Notes
- Useful for Markdown, GitHub, Notion, and technical documentation workflows.
Best results checklist
- Use clear images or PDF pages with readable labels.
- Crop the upload to one diagram or one process when the source contains multiple unrelated charts.
- Keep arrowheads, connector lines, and decision labels visible.
- Use high-contrast screenshots or straight-on whiteboard photos.
- Review labels, arrows, and branch directions before exporting the final diagram.
- Use clear flowchart screenshots with readable labels when you need Mermaid code for documentation.
Limitations and cleanup
- Dense diagrams may need manual cleanup after the first AI rebuild.
- Blurred, cropped, or low-contrast text can reduce label accuracy.
- Scanned PDFs and image-style PDFs work best when the target page is clear.
- The result is a rebuilt editable diagram, not a recovery of hidden source metadata.
- Connector direction, branch labels, and complex layouts may need review before sharing.
- Generated Mermaid code may need syntax, label, or layout cleanup for dense, blurry, or non-flowchart diagrams.
After conversion
Continue from the converted diagram without rebuilding the file.
Open editable canvas
Continue refining the rebuilt diagram with manual edits or AI chat.
Export target files
Export the finished diagram as PNG, SVG, PDF, Draw.io, Mermaid, or a shareable link when available.
Fix with AI chat
Ask ChatFlowchart to rename labels, adjust steps, clean up layout, or correct arrows.
Report conversion quality
Mark whether the result looks good or needs cleanup so weak inputs are easier to diagnose.
FAQ
Questions before you upload
Convert a diagram image into Mermaid code
Upload a screenshot, diagram image, or PDF page and rebuild the visible structure as an editable Mermaid draft for docs.