Free Online Sentence Counter
Struggling to gauge how readable your writing is? Our free sentence counter instantly tallies sentences, words, and characters, updating live as you type — private in your browser, no signup, no upload required.
0Words
0Characters
0Sentences
0Paragraphs
Characters without spaces
0
Avg. words per sentence
0
Reading time
0s
Speaking time
0s
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How to Use
Step 1
Paste or Type Your Text
Copy your paragraph, essay, or article into the sentence counter box above, or type directly into the editor. There's no minimum or maximum length, so it works for a single sentence or a full document.
Step 2
Watch Your Sentence Count Update Live
As soon as you stop typing, the tool recalculates words, characters, sentences, and paragraphs in real time, so you always see an accurate count without clicking a button.
Step 3
Check Average Sentence Length & Reading Time
Scroll down to see your average words per sentence, along with estimated reading time and speaking time — useful for judging how easy your writing is to read or read aloud.
Step 4
Copy or Download Your Results
Once you're happy with your sentence count and stats, copy your text back out or download a full report with one click — nothing you paste is ever stored on our servers.
Key Features
Real-time sentence counting
no "submit" button needed; your sentence count updates as you type.
Average words per sentence
A metric most sentence counters skip, but a genuinely useful signal for spotting overly long or choppy sentences.
Reading and speaking time estimates
Useful for scripts, speeches, and presentations, not just written content.
100% privacy
Your text is processed locally in your browser. Nothing is uploaded or stored on ToolFlexy's servers.
Frequently Asked Questions
A sentence counter is a free online tool that counts how many sentences appear in a piece of text, along with related stats like word count, character count, paragraph count, and reading time. ToolFlexy's version calculates all of this instantly in your browser as you paste or type, so you get an accurate count without waiting or uploading a file.
It splits text on sentence-ending punctuation — periods, question marks, and exclamation points. This works accurately for the vast majority of everyday writing, though unusual abbreviations like “e.g.” or “Mr.” can occasionally be miscounted as a sentence break. For text with lots of abbreviations, it's worth doing a quick manual double-check alongside the automated result.
A word counter only tells you how many individual words your text contains. A tool like this goes a step further — it groups those words into sentences and calculates your average words per sentence, which is one of the clearest indicators of how easy your writing is to read.
Most readability guidelines recommend keeping your average sentence length between 15 and 20 words when writing for the web or a general audience. This tool shows that average automatically, so you can quickly tell if your sentences are running too long — mixing in some shorter sentences usually reads better than keeping every sentence the same length.
No — everything runs locally in your browser. ToolFlexy never uploads, transmits, or stores the text you paste or type, so you can safely count sentences in private drafts, essays, or client work without any privacy concerns.
No, there's no word or character limit. Whether you paste a single sentence or an entire chapter, it processes everything instantly and updates every stat — sentences, words, characters, and reading time — the moment you stop typing.
Yes. Alongside your sentence total, the counter simultaneously tracks word count, character count, paragraph count, and an estimated reading time, all updating live as you type. This gives you a complete snapshot of your text's length and pacing in one view, without needing to run separate tools for each individual metric.
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