Free online tool
Syntax Tree Generator
Turn labeled bracket notation into a syntax tree. Review phrase structure and download your diagram. Provide your own parse; no automatic sentence parsing.
Outline, CSV table, bracket notation, Newick or editable tree file. Up to 1 MiB source and 1,000 nodes.
Outline, CSV table, bracket notation, Newick or editable tree file. Up to 1 MiB source and 1,000 nodes.
- Paste labeled bracket notation
- Check the phrase-structure tree
- Download a diagram for your notes
How it works
Turn labeled bracket notation into a syntax tree. Review phrase structure and download your diagram. Provide your own parse; no automatic sentence parsing.
Enter data, review the result, and download it when you are ready. No account is required. Check the input and the output before using them for consequential decisions.
Questions
What input does this tool accept?
Use square brackets: [S [NP [D The] [N cat]] [VP [V sleeps]]].
What should I check?
Each bracketed group starts with its node label, followed by child groups or terminal text.
What are its limits?
Provide your own phrase structure. The tool does not automatically parse a sentence or judge its grammar.