File Tree Generator
Paste a list of file paths or an indented outline and get a clean ASCII directory tree for your README or docs. Unicode or plain-ASCII connectors. Runs entirely in your browser, no server, no sign-up.
What this tool does
Paste a list of file paths or an indented outline and get back a clean ASCII directory tree — the kind you see at the top of a good README. It runs entirely in your browser: nothing is uploaded, it works offline, and there's no sign-up.
Two ways to describe your tree
| Mode | You paste | How it nests |
|---|---|---|
| paths (default) | One slash-separated path per line, like src/main.rs. | Lines sharing a leading path are merged into one tree. A trailing / marks an explicit directory. |
| outline | One name per line, indented. | A more-indented line becomes a child of the line above. Tabs and spaces both work (a tab counts as 4 columns). |
Blank lines are ignored in both modes, so you can space your input out for readability.
Options
- Root label — the text on the very top line of the tree (default
.). - Plain-ASCII connectors — swap the Unicode box-drawing characters
(
├──,└──,│) for plain ASCII (|--,`--,|) when you need the tree to render in a strictly-ASCII context. - Trailing slash on directories — append
/to folder names (on by default). - Sort — order each folder's entries with directories first, then alphabetically. Off by default, which keeps your input order.
Example
paths input:
src/main.rs
src/lib.rs
README.md
docs/guide.md
Output:
.
├── src/
│ ├── main.rs
│ └── lib.rs
├── README.md
└── docs/
└── guide.md
The same tree in outline mode:
src/
main.rs
lib.rs
README.md
docs/
guide.md
FAQ
Is it free and private?
Yes — your input never leaves your device, and the page keeps working offline once it has loaded.
What's the difference between the two modes?
Use paths when you have a
flat list of full paths (e.g. from git ls-files or a find command); the tool
merges shared folders for you. Use outline when you'd rather sketch the
structure by hand with indentation.
Can I mix tabs and spaces in outline mode?
Yes. A tab counts as 4 columns, so a tab-indented line still nests correctly under a space-indented parent.
How do I mark an empty directory?
Give it a trailing slash (build/). In
paths mode any path segment before the last is treated as a directory
automatically.
Why ASCII instead of Unicode?
Some terminals, fonts, or documentation pipelines don't render box-drawing characters cleanly — plain-ASCII connectors guarantee the tree looks right everywhere.
Developer & Automation Access
Run it from the terminal
Same engine as this page, headless — via the gizza CLI:
gizza tool file-tree-generator "src/main.rs
src/lib.rs
README.md
docs/guide.md"New to the CLI? Get gizza →
Open it by URL
Pre-fill and auto-run this tool with query parameters — the names match the API/CLI:
https://gizza.ai/tools/file-tree-generator/?input=src%2Fmain.rs%0Asrc%2Flib.rs%0AREADME.md%0Adocs%2Fguide.md&mode=paths&root=.&ascii=true&trailing_slash=true&sort=trueMachine-readable descriptor: tool.json — title + parameters JSON Schema for agents.