Raw text file formats:
AsciiDoc
Creole
Markdown
MediaWiki
Org-Mode
Pod
RDoc
Textile
reStructuredText
rich text (RTF)
Processed output formats:
Navigation:
Table Editing:
Edit table in a spreadsheet.
Equation editing
SVG images
UML editing
free (only free versions considered here)
readable textfile
text editing
mouse positioning (none, absolute, limited)
Creately - cannot save file
UMLetino - simple XML, no arrow positioning in xml, no undo
PlantText - looks like an old copy of PlantUML
PlantUML - simple text, positioning is automatic, no way to manually position objects
Visual Paradigm - binary file format, unlimited objects
draw.io, diagrams.net - complex xml, positioning, free, unlimited
| Product | xml | readable | text editing | manual positioning | arrow redraw |
| UMLetino | yes | yes | yes | yes | no |
| PlantUML | yes | yes | yes | no | limited |
| Creately | no | no | no | yes | limited |
| Visual Paradigm | yes | no | no | yes | limited |
| draw.io | yes | no | no | yes | limited |
UML diagrammer: https://www.umletino.com/umletino.html
UML beautifier: https://xmlbeautifier.com/