Free online word counter tool. Count words, characters (with and without spaces), sentences, paragraphs, and lines in real time. Get reading time, speaking time, unique words, average word length, longest word, and top keyword density analysis. Supports English, Chinese, and mixed text. 100% browser-based — no data upload required.
Free online text case converter tool. Instantly convert text between uppercase, lowercase, title case, sentence case, toggle case, camelCase, PascalCase, snake_case, and kebab-case. Perfect for code variable names, CSS class names, file naming conventions, and content formatting. 100% browser-based — no data upload required.
Free online text diff checker tool. Compare two texts side by side and instantly see added, removed, and changed lines. Perfect for tracking document revisions, comparing code changes, proofreading edits, and reviewing content updates. Features a clean line-by-line diff view with color-coded highlights. 100% browser-based — no data upload required.
Free online text sorter tool. Sort lines alphabetically (A-Z or Z-A), by line length (shortest to longest or vice versa), shuffle lines randomly, reverse line order, and remove duplicates. Clean up lists with one click — trim whitespace, remove empty lines, and deduplicate. Perfect for organizing data lists, cleaning up exports, and preparing text for processing. 100% browser-based — no data upload required.
Online Markdown editor with live preview. Write and preview Markdown in real-time with split-pane view. Supports headings, bold, italic, links, images, code blocks, tables, lists, and GitHub Flavored Markdown. Features include view mode toggle (edit/preview/split), one-click copy HTML, download as .md or .html, drag-and-drop file upload, toolbar shortcuts, and word/character count. All rendering happens locally in your browser using the marked library — no data is sent to any server.