Free online word, character, and sentence counter with readability scoring and ESL difficulty analysis.
- Word, character, sentence, and paragraph counts
- Flesch-Kincaid readability score
- Gunning Fog index
- ESL difficulty level analysis
- Reading time estimation
- Real-time updates as you type
Open the tool in your browser — no installation required. Paste or type your text and get instant results.
- Pure HTML, CSS, JavaScript
- No dependencies or build step
- Hosted on GitHub Pages
- Works offline after first load
MIT
| Tool | Description |
|---|---|
| Word Counter | Word, character & sentence counter with readability scoring |
| Tone Analyzer | Formal vs. casual tone detection |
| Case Converter | 12 text case conversions |
| JSON Formatter | Pretty print, validate & minify JSON |
| Text Diff | Compare two texts side by side |
| Markdown Preview | Live markdown editor with preview |
| Readability Analyzer | Flesch-Kincaid grade level analysis |
| All Tools → | Complete developer tools hub |
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