Visible parent-child structure
See what belongs where instead of relying on indentation hidden inside a long document.
Tree editor app
Edit knowledge like a tree.
Treetor gives you a focused desktop tree editor where every item can become a branch, every branch can hold more detail, and the hierarchy can keep evolving.
Built for people searching for tree editor app, tree structure editor, tree notes, hierarchical editor, nested notes app, and better ways to organize complex ideas.
Why it works
Hierarchy should be easy to create and easy to change.
Branch into detail
Open a child tree when an item deserves its own space.
Edit the model
Move, duplicate, merge, delete, indent, and outdent items as the structure matures.
Structured knowledge
More structured than notes. More focused than a canvas.
For technical and non-technical trees
Use Treetor for product requirements, checklists, curricula, knowledge bases, software design notes, and personal research.
Not just a file-tree viewer
Treetor is an editor for information structure itself: the content and the hierarchy live together.
Where Treetor fits
A practical alternative to flat or rigid tools.
| Compared with | What Treetor gives you |
|---|---|
| File tree | The nodes are editable notes and picture items, not only files. |
| JSON/XML editor | The UI is made for human thinking, not raw data syntax. |
| Outline | Open branches, add pictures, annotate, and export. |
Screenshot-backed guide
Learn the workflow with real Treetor screenshots.
The user guide is built from the product itself, with annotated screenshots for the exact features that make Treetor different.
FAQ
Questions people ask before trying Treetor.
What is a tree editor app?
A tree editor app lets users create and edit nested parent-child structures. Treetor applies that model to notes, plans, pictures, and knowledge work.
Can any item become a branch?
Yes. Treetor supports opening or creating child trees from items, so detail can grow where it belongs.
Can I move tree nodes around?
Yes. Treetor supports moving, indenting, outdenting, duplicating, merging, and deleting items and their children.
Try the complete desktop app
Build your first Treetor hierarchy today.
Free for 30 days — no card required. Available for Windows, macOS, and Linux.