Wordtune

Wordtune, from AI21 Labs, is a writing assistant focused on one job done well: rewriting. Highlight a sentence and it offers alternative phrasings, shifts the tone between casual and formal, and can shorten a wordy passage or expand a terse one. Unlike a grammar checker that fixes mistakes, Wordtune reworks correct-but-clunky sentences into clearer ones while trying to preserve your intended meaning.

Compared with Grammarly, which leans toward correctness, style scoring, and a broad feature suite, Wordtune is more targeted at rephrasing and reads as less mechanical for that task. Its “Spices” feature can inject supporting elements like statistics, examples, or counterarguments, and it added summarization for long articles. Because it runs as a browser extension, it works in Gmail, Google Docs, LinkedIn, and most text fields online.

Key Features

• One-click sentence rewrites with multiple alternatives
• Tone shifting between casual and formal
• Shorten and expand controls for length
• Spices — add statistics, examples, analogies, or counterpoints
• Article and document summarization
• Browser extension plus an editor, with multilingual input support

Pricing

• Free: A limited number of rewrites and AI actions per day
• Advanced/Plus (around $10-$14/month): Unlimited rewrites and full Spices
• Unlimited (higher tier): All features with higher generative-AI limits

Best For

Professionals, students, and non-native English speakers who want to polish tone and clarity sentence by sentence without rewriting from scratch, and anyone who mainly needs rephrasing rather than a full grammar-and-style suite.

Limitations

The free plan’s daily cap is easy to hit during real work, and Wordtune is narrower than Grammarly if you also want plagiarism checks, deep grammar analysis, or team style guides. Suggestions can occasionally feel generic, so a human pass still matters for voice.