Textorum.io · Sentence counter

    Free Sentence Counter

    Count sentences and check average sentence length live. Shorter sentences read more easily — Textorum.io shows where to tighten.

    Analyze your text instantly — directly in your browser.

    • Free
    • Private
    • Instant
    • No signup
    Sentence counter
    Live
    36
    Words
    217
    Characters
    3
    Sentences
    1
    Paragraphs
    • Instant analysis
    • Processed locally in your browser
    • No signup required
    • Multilingual

    Learn how it works →·Want the full editor with autosave, file uploads and 6 languages? Open Textorum.io →

    Built for serious writers

    Instant feedback

    Every keystroke updates metrics in real time — no buttons, no waiting.

    Private by design

    Your text is processed locally in your browser. Nothing is uploaded or stored.

    Multilingual

    Built for English, German, Spanish, French, Italian and Portuguese writers.

    Editor-grade accuracy

    Counts and readability scores match what professional editors actually use.

    Sentence length and readability

    What counts as a sentence?

    Textorum.io uses standard punctuation rules — full stops, question marks and exclamation marks — across multiple languages.

    Ideal sentence length

    For web content, an average of 14–18 words per sentence is a sweet spot. Longer averages drag readability down.

    How to break long sentences

    Watch the average sentence length metric. Above 20, scan for sentences with multiple commas — those are usually the best to split.

    Dig deeper with related Textorum.io tools: Count words online, Count characters online & Count paragraphs online.

    Why count sentences?

    Real-time results

    Analysis updates as you type — no waiting, no buttons.

    Private by design

    Everything runs in your browser. Your text never leaves the page.

    No signup required

    Open the tool and start working in seconds — completely free.

    Built for writers

    Designed for bloggers, SEO specialists, students and content teams.

    Where sentence count matters

    • Editing blog posts for clarity
    • Meeting style-guide rules
    • Tightening academic writing
    • Improving readability scores
    • Auditing long-form content
    • Reviewing AI-generated drafts

    How to count sentences

    1. 01

      Paste or type your text

      Drop content into the editor or upload a .txt or .docx file.

    2. 02

      Review the live metrics

      See your focus score, word count, readability and SEO signals.

    3. 03

      Refine your writing

      Tighten sentences, balance keywords and improve clarity.

    4. 04

      Publish with confidence

      Ship clear, well-structured content for readers, SEO and modern search experiences.

    Private

    Privacy-first writing tools

    Textorum.io is built so your words stay yours. No accounts, no tracking of content, no servers reading your drafts.

    Processed locally

    All analysis runs on your device, inside your browser tab.

    No server-side storage

    We never send your text to a server or save it to a database.

    Transparent metrics

    Open formulas for word count, readability and SEO scoring — no black box.

    No signup required

    Use every Textorum tool freely. No email, no paywall, no friction.

    Learn how it works

    Sentence counter FAQ

    Does it work for non-English text?

    Yes. Sentence detection works across all major Western languages.

    Will Textorum.io rewrite my sentences?

    Textorum.io is an analysis tool — you stay fully in control of your writing.

    Related Textorum.io tools

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    Count words online

    Free Word Counter

    Count words instantly in any text. A free online word counter with character count, reading time and SEO insights — private and in your browser.

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    Count paragraphs online

    Free Paragraph Counter

    Count paragraphs in any text instantly. A free paragraph counter to balance structure, pacing and readability.

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    Check readability online

    Free Readability Checker

    Check the readability of any text instantly. Get Flesch reading ease, grade level and writing insights — free, private and in your browser.

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    Calculate the Flesch score

    Flesch Reading Score Calculator

    Calculate the Flesch reading ease score of any text. A free Flesch score calculator with grade level and writing analytics.

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    Count characters online

    Free Character Counter

    Count characters with and without spaces. A free character counter for tweets, meta descriptions and SMS — private and instant.

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    Count blog post words

    Blog Word Counter

    A free word counter built for bloggers. Count words, check readability, analyze keywords and optimize blog posts in real time.

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    Ready to improve your writing?

    Open the full Textorum.io editor with autosave, multi-language support and advanced writing analytics.