Wordtune

Wordtune by AI21 Labs is a writing companion that helps you express your ideas more clearly and effectively. Rather than generating content from scratch, Wordtune focuses on improving text you've already written — rewriting sentences, adjusting tone, expanding or shortening passages, and suggesting alternative phrasings. The AI understands the intent behind your writing and offers multiple rewrite options: make it more formal, more casual, shorter, longer, or simply clearer. This makes it particularly useful for non-native English speakers who want to polish their writing while maintaining their original meaning. Wordtune Read is a companion feature that summarizes long documents, articles, and PDFs, extracting key points so you can quickly absorb information. The tool works as a browser extension, in the Wordtune editor, and integrates with common writing platforms.