Word Counter, Converters & Calculators — Free and Instant
Count words and characters, convert weeks to years and volumes, work out percentages and your exact age. Everything runs in your browser: no upload, no sign-up.
Word Counter
Count words, characters, sentences, paragraphs, reading time, and keyword density in real-time.
Percentage Calculator
Calculate percentages, increases, decreases, and differences in real-time.
Age Calculator
Find your exact age, next birthday countdown, and birth date trivia.
Password Generator
Create cryptographically secure, randomized passwords with customizable rules.
Unit Converter
Convert between Metric and Imperial lengths, weights, and temperatures instantly.
Weeks to Years Converter
Convert weeks to years, years to weeks, and see visual progress.
Volume Converter
Convert between milliliters, fluid ounces, cups, tablespoons, teaspoons, and liters instantly.
Readability Scorer
Score text with Flesch, Gunning Fog, SMOG and LIX — plus Gulpease, Fernández Huerta and the other indices built for non-English languages.
Character Limit Checker
Check your text against the limit of Google, X, Instagram, LinkedIn and 12 more fields, and preview where each one cuts it off.
Text Diff Checker
Compare two versions of a text side by side and see every line and word that changed.
Case Converter
Convert text to camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, a URL slug and more.
LLM Token Counter
Estimate the tokens and the API cost of a prompt, and see why non-English text costs several times more.
Business Days Calculator
Count the working days between two dates, or add working days to a date, with the public holidays of nine countries and a working week you can change.
FAQ - Frequently Asked Questions
Is YouCountApp free to use?
Yes, YouCountApp is a 100% free tool. There are no subscriptions, limits, or hidden fees.
What is the difference between character count with and without spaces?
Character count with spaces measures the total length of the string, including letters, spaces, tabs, and punctuation. Count without spaces counts only visible letters, digits, and punctuation symbols, which is often required for academic assignments or strict text limits.
Why does YouCountApp not send my text to a server?
Unlike other online character counters that upload your text to process it, YouCountApp handles all calculations directly inside your browser using standard JavaScript. This makes it faster, offline-capable, and completely private.
Does the word count work for Chinese, Japanese, Korean and Thai?
Yes. Chinese, Japanese and Thai are written without spaces between words, so counters that split the text on spaces report an entire paragraph as a single word. YouCountApp segments the text with Intl.Segmenter, the word-boundary engine built into the browser, and detects the writing system of what you paste instead of trusting the interface language: a Chinese paragraph is counted correctly even on the English page. Reading and speaking speeds are adjusted per language as well.
How accurate is the reading time estimate?
Our reading time calculator is based on the standard average reading speed of 200 words per minute (WPM). The speaking time is calculated at 130 words per minute (WPM). The calculations are mapped down to precise seconds to give you an accurate gauge for scripts, presentations, or SEO copy.
Can I use YouCountApp on my mobile phone?
Yes, YouCountApp is fully responsive and optimized for mobile devices. You can bookmark it or add it to your home screen for instant access to word counting, text cleanups, and formatting tools on the go.