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Test regex patterns, diff text, count words and lines, convert case, and generate QR codes in your browser. Browse all 12 Text tools with no upload and no account.

  • Regex Tester: Free regex tester online for JavaScript. Test patterns, see match indices and capture groups in your browser with no upload, no account required.
  • Text Diff: Free text diff online tool to compare two texts line by line in your browser. See added, removed, and unchanged lines instantly. No upload, no account.
  • String Length Calculator: String length online calculator: count characters, UTF-8 bytes, UTF-16 code units free. No upload, no account. Paste text to check byte length for APIs and databases.
  • Word Counter: Word counter online: count words, characters, and lines instantly in your browser. Free string length calculator. No upload, no account required.
  • Line Counter: Count lines in text online, including empty lines. Free browser-local line counter for logs, CSV, and code. No upload, no account needed.
  • Case Converter: Case converter online: convert text to uppercase, lowercase, title case, sentence case, snake_case, kebab-case, camelCase. Free, browser-local, no upload.
  • Remove Duplicate Lines: Remove duplicate lines online free. Deduplicate text while keeping first occurrence in order. Browser-based, no upload, no account needed.
  • Sort Lines: Order and sort lines alphabetically online with numeric-aware, case-insensitive comparison. Free browser tool, no upload, no account needed.
  • Trim Lines: Trim leading and trailing whitespace from each line locally. Preserves inner spaces and blank lines. Free, browser-based, no upload.
  • Escape String: Escape string online free - convert raw text to valid JSON string literals in your browser. Handles quotes, newlines, tabs, control characters. No upload, no account.
  • Unescape String: Unescape string online: convert JSON escape sequences back to raw text in your browser. Free, no upload, no account. Parse \n, \t, \" locally.
  • QR Code Generator: Free QR Code Generator: Create scannable QR codes as SVG & PNG locally in your browser. No upload, no API, no account. Privacy-first.

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