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Most Popular Tools

The most frequently bookmarked tools by our users

Image Compressor

Compress JPG, PNG, and WebP images by up to 80% without losing quality.
Merge PDF

Combine multiple PDF files into one clean document instantly.
Word Counter

Count words, characters, sentences, paragraphs, and reading time in real time.
JSON Formatter

Format, validate, beautify, and minify raw JSON string inputs.
Password Generator

Generate secure, cryptographically random passwords with custom symbols.
QR Code Generator

Create custom QR codes for URLs, text, Wi-Fi, and contact details.
JPG to PDF

Convert JPG and PNG images into a clean single PDF file.
Case Converter

Convert text to UPPERCASE, lowercase, Title Case, camelCase, and snake_case.
Base64 Encoder

Encode text or images into standard Base64 format strings.
Percentage Calculator

Calculate percentage of values, percentage differences, and changes easily.
Color Picker

Pick colors from screen or image and export HEX, RGB, and HSL formats.
SERP Preview Tool

Simulate how your meta title and description appear in Google search results.

Why Choose TinyToolzz?

Built from the ground up for radical speed, privacy, and simplicity

Privacy First
Your files never leave your device. All processing occurs 100% locally in your web browser.
Lightning Fast
No server uploads or queues. Execution starts instantly and returns results in milliseconds.
Truly Free
No subscription tiers, daily task limits, or hidden paywalls. 100% free forever for everyone.
Works on Any Device
Fully optimized for smartphones, tablets, laptops, and desktop viewports.
150+ Tools
A complete utility suite for images, PDFs, developer tasks, text, calculators, and converters.
No Dark Patterns
No artificial processing delays, fake progress bars, or deceptive sign-up pop-ups.

Frequently Asked Questions

Everything you need to know about using TinyToolzz

What is TinyToolzz?
TinyToolzz is a browser-based suite of online utilities for images, PDFs, text, developer code, calculators, and unit converters. Every tool runs directly inside your web browser.
Are all tools on TinyToolzz free?
Yes. All tools on TinyToolzz are 100% free with no premium plans, hidden subscriptions, or daily limits.
Do I need to create an account?
No. You never need to sign up, provide an email address, or log in to use any tool on TinyToolzz.
Is my data safe? Do files get uploaded to a server?
Your files and text inputs are completely private. All processing is performed client-side using JavaScript and Web APIs. Zero file data is ever transmitted to external servers.
Do the tools work on mobile devices?
Yes! TinyToolzz is designed mobile-first and works seamlessly across iOS Safari, Android Chrome, mobile browsers, tablets, and desktop computers.

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Sentence Counter

Count sentences, words and characters as you type. See average sentence length and a numbered breakdown of every sentence. Abbreviations like Dr. and e.g. are handled correctly.

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Sentences
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Words
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Characters
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Paragraphs
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Avg. words / sentence
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Longest sentence (words)

Sentence breakdown

Type or paste text to see each sentence listed with its word count.

Technical Specifications

How this counter detects sentences, and the limits that apply.

Specification Details
Input Plain text typed or pasted into the text box; any language or script
Sentence rule Split at . ! ? and ellipsis; a segment counts only if it holds a letter or digit
Abbreviations shielded Mr. Mrs. Ms. Dr. Prof. Sr. Jr. St. vs. etc. e.g. i.e. a.m. p.m. (case-insensitive)
Word rule Text split on whitespace; every non-empty segment counts as one word
Paragraph rule Blocks separated by one or more line breaks; blank blocks are ignored
Averages Avg. words per sentence = total words ÷ total sentences, shown to 1 decimal
Processing location 100% client-side JavaScript in your browser memory; nothing is uploaded
Usage limit None — analyze unlimited texts for free, no signup required

Features

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Live Counts

Sentences, words, characters and paragraphs update with every keystroke. No button to press, no waiting.

📝

Abbreviation Aware

Periods in titles and Latin abbreviations never split sentences, so academic and formal writing counts correctly.

📊

Sentence Breakdown

Every sentence is listed with its word and character count, making run-on sentences easy to spot and split.

🔒

Local Device Privacy

Everything runs in your browser with plain JavaScript. Drafts, essays and notes never leave your device.

How to Use the Sentence Counter

  1. Type directly into the text box, or paste an essay, article or story.
  2. Watch the Sentences, Words, Characters and Paragraphs boxes update live.
  3. Check Avg. words per sentence: aim for 15–20 for general writing; higher values suggest splitting.
  4. Scan the sentence breakdown table to find the longest sentences and rephrase them.
  5. Click Copy Results to copy the full summary, or Download Report to save it as a .txt file.
  6. Click Clear to empty the box and start a fresh count.

Why Sentence Counts Matter

Sentence count is the backbone of readability. Teachers ask for a minimum number of sentences per paragraph, editors judge pacing by sentence variety, and readability formulas all start from words per sentence. Counting by hand is slow and error-prone — especially in long documents where abbreviations and dialogue inflate naive counts.

The abbreviation problem

Simple counters split at every period, so "Dr. Smith arrived at 9 a.m." becomes three sentences instead of one. This tool shields common titles (Mr., Dr., St.), Latin forms (e.g., i.e., etc., vs.) and time markers (a.m., p.m.) before splitting, then restores your exact text for display. For word-level totals, see the Word Counter, and for character limits the Character Counter.

Average length and readability

Most style guides recommend 15–20 words per sentence for general audiences and under 25 for news writing. A paragraph where every sentence runs past 30 words tires readers quickly. Use the breakdown table to locate those outliers: the longest-sentence figure tells you where to start editing.

Honest limitations

No browser-side splitter is perfect. Uncommon abbreviations, decimal numbers at line starts, and headings without ending punctuation can shift the count by one or two. The tool does not check grammar or grade readability. For very large pastes of tens of megabytes, live counting on each keystroke can feel slower on older phones.

Privacy and Client-Side Security

Privacy Guarantee: All counting and analysis occurs locally inside your browser. Your text is never transmitted, stored, or recorded on remote servers.

Many online counters send your pasted text to a server for processing, which is a poor fit for unpublished drafts, client work, or personal notes. TinyToolzz takes a different approach: every count runs in the page itself with plain JavaScript string operations.

Because nothing is uploaded, there is no waiting, no account, and no copy of your writing retained anywhere. Your text exists only in the tab's memory and is discarded when you close the page or click Clear.

Frequently Asked Questions

How does the Sentence Counter detect sentences?
The tool splits your text at sentence-ending marks (. ! ? and ellipsis), then keeps every segment that contains at least one letter or digit. Closing quotes and brackets after the mark stay attached to the sentence, and stray punctuation alone is never counted.
How does it handle abbreviations like Dr. and e.g.?
Common abbreviations such as Mr., Mrs., Dr., St., vs., etc., e.g., i.e., a.m. and p.m. are shielded before splitting, so their periods never end a sentence. The shielding is internal only: your text is displayed and counted exactly as written.
What is average sentence length and why does it matter?
Average sentence length is total words divided by total sentences. Readability guides suggest 15 to 20 words for general writing. A high average with a long longest-sentence value usually means some sentences should be split for clarity.
Can I see each sentence separately?
Yes. The sentence breakdown table lists every detected sentence with its number, word count and character count. It is useful for spotting run-on sentences and checking that each point in an essay stands on its own.
Is there a text length limit?
There is no fixed limit. The tool handles essays, articles and long documents of several megabytes in memory. Extremely large pastes (tens of megabytes) may respond more slowly because counting runs on each keystroke.
Is my text uploaded to a server?
No. All counting happens locally in your browser with JavaScript. Your text is never transmitted, stored or logged anywhere. Closing the tab or clicking Clear removes it from memory immediately.

Related Text Tools

Word Counter

Count words, characters and paragraphs with reading-time estimates.
Character Counter

Count characters and UTF-8 bytes with platform limit checks.
Paragraph Counter

Count paragraphs and check text structure at a glance.
Reading Time Calculator

Estimate reading and speaking time for any text at adjustable speeds.
Remove Extra Spaces

Trim leading, trailing and repeated spaces from any text.
Case Converter

Change text to UPPERCASE, lowercase, Title Case and more.