Text & String Tools
Count words, test regex patterns, convert text case, sort lines, remove duplicates, format HTML/CSS, minify JavaScript, and more. Free online text utilities for developers — all 100% client-side. Includes HTML formatter, CSS formatter, JavaScript minifier, Markdown editor, and text diff checker. Your data never leaves your browser.
20 Text & String tools
- Regex Patterns Reference — Browse common regex patterns for validation, extraction, and text processing.
- Regex Tester — Test and debug regular expressions with live matching.
- Regex Tutorials — Learn regex step by step with 22 interactive lessons
- Word Counter — Count words, characters, and paragraphs.
- Character Counter — Count characters with and without spaces.
- Line Counter — Count lines in text or code.
- String Case Converter — Convert text between different case formats.
- Sort Lines — Sort lines alphabetically or numerically.
- Remove Duplicates — Remove duplicate lines from text.
- LLM Token Counter — Count tokens for GPT-4, Claude, and Gemini.
- HTML Formatter — Format, beautify, and minify HTML code.
- CSS Formatter — Format, beautify, and minify CSS code.
- JavaScript Minifier — Compress and minify JavaScript code.
- Markdown Editor — Write markdown with live preview and HTML export.
- Markdown to HTML — Convert markdown to HTML instantly. Real-time HTML output.
- Text Diff Checker — Compare two texts side by side with highlighted differences.
- CSS Tools Hub — Browse all CSS tools — formatters, converters, validators, and more.
- Duplicate Counter — Count duplicate lines in your text.
- Spaces to Newlines — Convert spaces to newlines or vice versa.
- Sort Words — Sort words in your text alphabetically.