Free Sentence Diagram Maker

Sentence Diagram Maker Diagram Maker

Type any sentence, label each word with its part of speech, and instantly see a Reed-Kellogg style diagram. Free, no sign-up required.

No credit card required20 free quiz generationsHow it works
Templates:
Label words above to see the diagram

How to use it

How It Works

Create a sentence diagram in four simple steps.

  1. 1

    Enter a sentence

    Type any English sentence or choose from pre-built template sentences.

    5 seconds

  2. 2

    Label each word

    Assign a part-of-speech label to each word: Subject, Verb, Direct Object, Adjective, Adverb, or Prep Phrase.

    30 seconds

  3. 3

    View the diagram

    See a Reed-Kellogg style SVG diagram with a horizontal baseline, subject|verb split, and diagonal modifier lines.

    Instant

  4. 4

    Print the diagram

    Print your completed sentence diagram on standard paper.

    Instant

What you get

Features

  • Reed-Kellogg Diagrams

    Classic sentence diagramming style with horizontal baseline, vertical subject|verb split, and diagonal modifiers.

  • 6 Part-of-Speech Labels

    Label words as Subject, Verb, Direct Object, Adjective, Adverb, or Prepositional Phrase.

  • Template Sentences

    Pre-built example sentences for common structures: SVO, S+Adj+V, with prepositional phrases, etc.

  • Live SVG Rendering

    Diagram updates instantly as you label words — no need to click a generate button.

  • Color-Coded Labels

    Each part of speech gets a distinct color for easy visual identification.

  • Print-Ready Output

    Clean SVG diagram designed for printing on standard paper sizes.

  • Works on Any Device

    Responsive design works on desktop, tablet, and phone browsers.

  • No Sign-Up Required

    100% free, no account needed. Just open and start diagramming.

What Is Sentence Diagramming?

Sentence diagramming is a method of visually representing the grammatical structure of a sentence using the Reed-Kellogg system. A horizontal baseline holds the subject and verb (separated by a vertical line), while modifiers like adjectives and adverbs branch off on diagonal lines below.

This free sentence diagram maker lets you type any sentence, label each word with its part of speech, and instantly see a Reed-Kellogg diagram rendered as clean SVG. Use template sentences for common structures or create your own. Print diagrams for worksheets, handouts, or study guides. For more grammar practice, try our Grammar Practice tool.

Frequently Asked Questions

Everything you need to know about the Sentence Diagram Maker.

Still have questions?

Our team is here to help. Email us at support@aiquizmaker.co

Start Diagramming Sentences Now

Free, instant, no sign-up. Create Reed-Kellogg diagrams in seconds.

  • No credit card required
  • 20 free quiz generations
  • Setup in 60 seconds