Do Mermaid diagrams appear as pictures in PDF and Word?

Yes. Every Mermaid block - flowcharts, sequence, class, state and ER diagrams, Gantt and pie charts, mind maps and timelines - is drawn in your browser and placed in the PDF, Word or HTML file as a sharp image, so readers see the diagram rather than the code.

What happens if a diagram has a syntax error?

That diagram is kept as a code block and you see a warning. Everything else in the document still converts, so one typo never blocks the whole file.

Which conversions are supported?

Markdown to PDF, Word, HTML or plain text; and PDF or Word back to Markdown, also as Markdown plus a folder of images in a ZIP file.

Are my files stored or used to train AI?

No. Files are converted in memory and sent straight back. They are never saved, shared or used to train AI, and you do not need an account.

Can I choose A4 or US Letter paper?

Yes. PDF and Word output can use A4 or US Letter. The converter picks the usual size for your region, and you can change it before converting.

Is Markdown Toolkit free?

Yes. It is free to use with no sign-up. Files can be as large as the limit shown in the upload box.

Free Markdown, PDF and Word converter

Convert documents and keep the structure. Mermaid diagrams and flowcharts become real pictures in your PDF, Word or HTML file - with tables, code and images intact.

Markdown Toolkit is a free online converter for Markdown documents. Upload a file or paste your Markdown, choose PDF, Word, HTML or plain text, and download the result - or turn a PDF or Word file back into clean Markdown. Headings, lists, tables, code blocks and images are kept.

Mermaid diagrams - flowcharts, sequence, class and state diagrams, Gantt and pie charts, mind maps and timelines - are drawn in your browser and placed in the PDF, Word or HTML file as sharp pictures, so readers see diagrams, not code.

Choose A4 or US Letter paper for PDF and Word output. Your files are converted and returned straight away. They are never stored, and you do not need an account.

Diagrams come out as real pictures

Write Mermaid in your Markdown. Every flowchart, sequence diagram and chart is drawn in your browser and placed in the PDF, Word or HTML file as a sharp image, so readers see the diagram, not the code.

Supported: flowcharts, sequence, class, state and ER diagrams, pie and Gantt charts, mind maps, timelines and every other Mermaid type.

Pick your conversion

From Markdown

Turn Markdown, READMEs and AI answers into finished documents.

Markdown to PDF - Turn a Markdown file or pasted Markdown into a clean, print-ready PDF. Headings, tables, code and diagrams stay exactly where you put them.
Markdown to Word - Turn Markdown notes into a Word document you can edit and share. You get real Word headings, tables and lists, not a flat block of text.
Markdown to HTML - Turn Markdown into a tidy, standalone HTML page you can open in any browser or paste into a website, blog or email template.
Markdown to text - Strip the formatting symbols from Markdown and keep just the words. Headings, paragraphs, list items and table rows each end up on their own line.
README to PDF - Turn a GitHub README.md, or any project documentation written in Markdown, into a PDF you can share with people who do not use GitHub.
ChatGPT to Word - Copy an answer from ChatGPT, Copilot, Gemini or Claude, paste it in, and download a tidy Word document with real headings, tables and lists.

Mermaid diagrams

Diagrams written as text come out as real pictures.

Mermaid to PDF - Write flowcharts, sequence diagrams and more as text in a Markdown file, and get a PDF where they are drawn as real diagrams.
Mermaid to Word - Write flowcharts, sequence diagrams and charts as text in Markdown, and get an editable Word document where every diagram is a real picture.
Mermaid to HTML - Get a single, self-contained web page from Markdown with Mermaid diagrams - no scripts and no diagram library needed to view it.

Back to Markdown

Make PDFs and Word files editable as plain Markdown.

PDF to Markdown - Turn a PDF into editable Markdown. Headings, lists and tables are rebuilt, and images are pulled out and placed where they appeared.
Word to Markdown - Turn a Word document into clean Markdown for GitHub, documentation or notes. Headings, tables, lists and code blocks are kept.

Frequently asked questions

Do Mermaid diagrams appear as pictures in PDF and Word?: Yes. Every Mermaid block - flowcharts, sequence, class, state and ER diagrams, Gantt and pie charts, mind maps and timelines - is drawn in your browser and placed in the PDF, Word or HTML file as a sharp image, so readers see the diagram rather than the code.
What happens if a diagram has a syntax error?: That diagram is kept as a code block and you see a warning. Everything else in the document still converts, so one typo never blocks the whole file.
Which conversions are supported?: Markdown to PDF, Word, HTML or plain text; and PDF or Word back to Markdown, also as Markdown plus a folder of images in a ZIP file.
Are my files stored or used to train AI?: No. Files are converted in memory and sent straight back. They are never saved, shared or used to train AI, and you do not need an account.
Can I choose A4 or US Letter paper?: Yes. PDF and Word output can use A4 or US Letter. The converter picks the usual size for your region, and you can change it before converting.
Is Markdown Toolkit free?: Yes. It is free to use with no sign-up. Files can be as large as the limit shown in the upload box.