# Word Counter — Free Online Tool https://word-counter.usetool.org/ > Word Counter is a free, privacy-first online tool that instantly counts words, characters, sentences, paragraphs, unique words, and estimates reading and speaking time. No signup, no ads, no server processing — everything runs in your browser. ## Features - Word count, character count (with and without spaces) - Sentence count, paragraph count, unique word count - Reading time (200 wpm) and speaking time (130 wpm) - Character limit checker with presets (Twitter 280, Meta 160, SMS 160) - Code editor mode: undo/redo, tab insertion, line numbers, visible whitespace - Dark mode, PWA with offline support - Works with any language including CJK, Cyrillic, Arabic ## Use Cases Students checking essay length, copywriters optimizing ad copy, social media managers respecting character limits, translators verifying word counts, speakers timing presentations, developers checking commit message length. ## Limitations No word frequency or keyword density analysis. No grammar or spell checking. No file upload. No readability scores (Flesch-Kincaid, Gunning Fog). No API — all processing is client-side in the browser. ## Technical Built with Astro (static site generator), Preact + Signals (~4KB interactive island), Tailwind CSS. Zero external dependencies for counting logic. Text never leaves the browser.