Markdown Viewer
Previews Markdown files with rendered content, outline, and source view. It is for reading docs, READMEs, changelogs, and notes without a code editor.
Runs in your browser. The file and result are not sent to Utilio servers.
Markdown Viewer
Preview Markdown files with rendered content, outline, and searchable source.
Preview
What Markdown Viewer does
Use Markdown Viewer when you need to open README or docs files from a download.
When to use it
- Open README or docs files from a download.
- Check headings and outline before publishing Markdown.
- Read source and rendered content side by side.
How to use it
- Choose an MD or Markdown file.
- Use rendered preview for reading and source view for exact text.
- Search headings or content when the file is long.
What to check
- Custom Markdown extensions may render differently on GitHub or your CMS.
- Check relative links and images in the final publishing system.
Data, formats, and limits
What stays on your device and what is sent
Runs in your browser. The file and result are not sent to Utilio servers.
Supported formats
Supported: MD, Markdown, TXT. Not supported: HTML, DOCX, PDF, RTF.
File limits and browser requirements
- Up to 20 MB per Markdown or TXT file
- Preview quality depends on browser parsing libraries and may not match desktop applications for complex files.
- Large files can be slow because parsing, search, and rendering happen in the active browser tab.
Known limits
- Preview quality depends on browser parsing libraries and may not match desktop applications for complex files.
- Large files can be slow because parsing, search, and rendering happen in the active browser tab.
Troubleshooting
- If the file does not open, check the extension, size, and save a simpler copy.
- If a spreadsheet, document, or presentation looks different from the desktop app, verify the source file in the app that created it.
- If search or preview feels slow, try a smaller file or close extra tabs.
Common questions
What does Utilio receive?
Runs in your browser. The file and result are not sent to Utilio servers.
What is it useful for?
Use it when you need to open README or docs files from a download. Start by choosing an MD or Markdown file.
Do I need an account?
No. You can use this tool without creating an account.
Can I use it on a phone?
Yes. For large files, complex previews, or careful review, a browser on a computer is usually more comfortable.
How do I get a reliable result?
Choose an MD or Markdown file. Then use rendered preview for reading and source view for exact text. Custom Markdown extensions may render differently on GitHub or your CMS.
Which formats are supported?
Markdown Viewer supports MD, Markdown, TXT. It does not support HTML, DOCX, PDF, RTF.
What file size works best?
Up to 20 MB per Markdown or TXT file. Browser memory and device speed can still affect large files.
Why did I not get the result I expected?
Preview quality depends on browser parsing libraries and may not match desktop applications for complex files. If the result still looks wrong, try a smaller or simpler input and review the output before using it.
Does Utilio use my input or results to train AI?
No. Utilio does not use files, pasted text, settings, generated values, or results from this tool to train AI models.