Screenshots
Click a thumbnail to preview.
Reading mode: colour or highlight any selection
Offline, lightweight and ready to use, free.
Turn headings and lists into a mind map; collapse, zoom and export to SVG / PNG / outline.
Double-click any block to edit it right there; click away to save, Esc to cancel, Ctrl+Z to undo.
Read, split (edit left / preview right) or full-width edit, with live preview and scroll sync.
Colour or highlight any selection — right-click works too, in reading mode and across paragraphs.
Printing and PDF export are two separate actions; exported PDFs carry our company footer.
The same interface, packaged for Android: touch-friendly layout, bottom action bar, long-press to highlight; opens via the system picker, saves into Documents/Jiandu and can be shared, exports PDF through the system print dialog, reads aloud with the system voice engine. It requests no permissions at all (not even INTERNET) - the OS itself blocks networking.
No install needed - open https://www.ylcai.cn/jiandu/ in a browser; it is the very same UI.
Column widths are allocated fairly so no column is squeezed into one character per line.
Click a thumbnail to preview.
Cumulative download requests 15 times (unique sources not generated yet)