What is a syntax tree?

A syntax tree — also called a parse tree or phrase structure tree — is a diagram that shows the hierarchical grammatical structure of a sentence. Non-terminal nodes label phrases (S, NP, VP, PP, CP), terminal nodes hold the actual words, and branches show how smaller constituents combine into larger ones.

Does it support X-bar theory?

Yes. Add 'x-bar theory' to your prompt and every phrase is drawn with its specifier, head (X), intermediate projection (X'), and maximal projection (XP). This makes it a full syntax tree diagram generator for X-bar theory, matching the conventions used in Radford, Carnie, and Haegeman textbooks.

Can it draw parse trees for languages other than English?

Yes. The parse tree generator supports 40+ languages including Spanish, German, French, Italian, Japanese, Mandarin Chinese, Korean, Arabic, Hindi, and Turkish. Word-order conventions (SVO, SOV, V2, verb-final) and language-specific labels are applied automatically.

Is this also a morphological tree generator?

Yes. Specify 'morphological tree' in your prompt and the AI draws word-internal structure — prefixes, suffixes, roots, and compound boundaries. Useful for morphology homework showing affixation, derivation, and inflection.

Can I export to LaTeX qtree for my paper?

Paid plans include LaTeX qtree and tikz-qtree export. Copy the code and paste it directly into your .tex manuscript. The free plan exports as 2K PNG, which is enough for homework and slide decks.

Does it draw movement traces and empty categories?

Yes. The syntax tree generator marks wh-movement, NP-movement, and head movement with labeled traces (t_i, t_j) and indexed empty categories. Works for questions, passives, subject raising, and subject-auxiliary inversion.

How accurate is the parser for complex sentences?

For standard constructions (simple clauses, coordination, embedded CPs, relative clauses, wh-questions, passives) the parser is reliable. For theoretically contested structures — like exact sites of ellipsis or scrambling — review the output against your framework and regenerate with a more specific prompt if needed.

Can I edit the tree after generation?

Download as SVG and edit nodes, labels, or branching in Figma, Illustrator, or Inkscape. You can also regenerate with an updated prompt — for example, adding 'show trace with index i for wh-movement' to refine the output.

What's the difference between a syntax tree and a sentence diagram?

A sentence tree diagram (linguistics style) shows hierarchical phrase structure — how words group into phrases and phrases into clauses. A traditional Reed-Kellogg sentence diagram shows grammatical relations on a horizontal baseline. This tool generates the linguistics-style syntax tree, not the Reed-Kellogg format.

Is the syntax tree generator free to use?

Sign-up is free and includes starter credits. Each tree generation uses credits. Monthly, yearly, and lifetime plans are available for linguistics students, instructors, and researchers who need to parse many sentences.

Syntax Tree Generator — AI, From Any Sentence

Draw a Syntax Tree Without Bracket Notation

No [S [NP ...]]. No qtree macros. No drag-and-drop.

Stop counting parentheses in [S [NP The] [VP [V left]]]. Type the sentence you're analyzing and the AI builds a labeled syntax tree with heads, phrasal categories, and X-bar projections. Works for English, Spanish, German, Japanese, Mandarin, and 40+ other languages.

Try It Free

Type or Paste Your Sentence

Write the sentence in plain text. Add a short note about the framework you want — Government & Binding, Minimalist bare phrase structure, or classic X-bar theory — and the AI follows that convention across the whole tree.

AI Parses the Sentence and Labels Every Node

The syntax tree generator assigns category labels (S, NP, VP, PP, CP, DP, TP), identifies heads and complements, and draws hierarchical structure. It marks wh-movement, NP-movement, and head movement with indexed traces where your framework requires them.

Export as PNG, SVG, or LaTeX qtree

Download the tree as a 4K PNG for homework and lecture slides, an editable SVG for Figma or Illustrator, or copy LaTeX qtree code directly into your syntax paper or thesis chapter.

One Syntax Tree Generator, Three Linguistics Workflows

Students · Researchers · Instructors

The same AI syntax tree generator handles intro syntax homework, publication-ready figures for journal papers, and full-semester teaching materials — without rewriting bracket notation every time.

Linguistics Students

Intro Syntax to Graduate Seminar

You understand how the sentence parses — you just need a clean tree diagram to turn in. Get a labeled syntax tree diagram for your homework, midterm review, or qualifying exam prep in under 30 seconds.

Handles relative clauses, wh-movement, and subordinate CPs
Renders in under 30 seconds — even at 1 AM before class
Free credits on sign-up — no payment info needed

Parse Your First Sentence

Linguistics Researchers

Publish faster, revise easier

Journal-ready figures for your syntax paper without fighting tikz-qtree or redrawing by hand after every reviewer comment. Export as LaTeX qtree, SVG, or PNG and drop straight into your manuscript.

LaTeX qtree and tikz-qtree output for direct paste into papers
Indexed traces for NP-, wh-, and head-movement
Consistent formatting across every figure in your paper

Generate a Figure

Syntax Instructors

Undergraduate and graduate teaching

Build a full week of parse-tree problem sets, answer keys, and lecture slides in an afternoon. The syntax tree generator follows whichever framework your syllabus uses — Radford, Carnie, Adger, or Sportiche/Koopman/Stabler.

Generate dozens of sentence tree diagrams for problem sets
Consistent X-bar formatting across every worksheet
Side-by-side trees for surface vs deep structure comparison

Make a Problem Set

Syntax Tree Generator for Any Sentence