Count words, characters, sentences, paragraphs. Readability score, keyword density, and reading time.
Good readability starts with sentence structure. Aim for an average sentence length of 15 to 20 words. Mixing short and long sentences creates a natural rhythm that keeps readers engaged. If your Flesch score drops below 50, try breaking up complex sentences into simpler ones.
For web content and blog posts, a readability score between 60 and 70 works well for most audiences. Academic and technical writing naturally scores lower, which is acceptable for specialized readers. The key is matching your writing complexity to your intended audience.
When reviewing keyword density, a frequency of 1 to 3 percent for your primary keyword is a reasonable target. If a keyword appears more than 4 percent of the time, readers and search engines may perceive it as repetitive. Vary your vocabulary by using synonyms and related phrases to keep your content natural and informative.
Reading time is estimated based on an average reading speed of 200 words per minute, which is the standard rate used by most publishing platforms. This gives you a realistic estimate of how long it takes an average adult to read your content from start to finish.
The tool displays both characters with spaces and characters without spaces. Many social media platforms count spaces toward character limits, while some academic submissions only count characters without spaces. Having both numbers available lets you meet any requirement.
The Flesch readability score rates your text on a scale from 0 to 100 based on sentence length and syllable count. A score of 60-70 is considered ideal for general audiences. Scores above 70 indicate easy-to-read content suitable for a wide audience, while scores below 30 suggest graduate-level complexity.
Keyword density is calculated by dividing the number of times a word appears by the total word count, then multiplying by 100. The tool filters out common stop words like "the", "and", and "is" to show only meaningful keywords. This helps writers and SEO professionals ensure their content uses target terms at an appropriate frequency.
There is no fixed word limit because all processing happens directly in your browser. The tool can handle essays, articles, and even book-length manuscripts without issue. Performance depends on your device, but most modern browsers can process tens of thousands of words instantly.