.smmx
Open SimpleMind on Phone
Quick view supported
OpenOnPhone can show a quick view for this format.
Yes. OpenOnPhone can show a quick local view for .smmx files in your browser.
What is a .smmx file?
SimpleMind .smmx files are ZIP-based mind maps that store topics, notes, links, images, relations, and map metadata inside document/mindmap.xml.
Why is .smmx hard to open on a phone?
- Phone file viewers usually cannot inspect .smmx packages directly.
- Renaming the file as ZIP only exposes internal files, not the topic hierarchy.
- Online converters may require uploading private mind maps, notes, or planning data.
What OpenOnPhone does not do
OpenOnPhone is for quick local inspection. It does not replace the original professional app for editing, conversion, exact layout, formulas, measurements, security review, or full workflow features.
MIME examples
- application/octet-stream
- application/zip
- application/x-simplemind
Next steps
- Choose the SMMX file on the home page.
- OpenOnPhone reads document/mindmap.xml locally and shows the topic tree, notes, links, image references, and relations.
- Use SimpleMind when you need exact layout, editing, icons, checkboxes, attachments, or full style fidelity.
Related formats
FAQ
- What is a .smmx file?
- SimpleMind .smmx files are ZIP-based mind maps that store topics, notes, links, images, relations, and map metadata inside document/mindmap.xml.
- Can OpenOnPhone show a quick view for .smmx files on phone?
- Yes. OpenOnPhone can show a quick local view for .smmx files in your browser.
- What should I try next for .smmx files?
- Choose the SMMX file on the home page. OpenOnPhone reads document/mindmap.xml locally and shows the topic tree, notes, links, image references, and relations. Use SimpleMind when you need exact layout, editing, icons, checkboxes, attachments, or full style fidelity.