Wordtune
AI writing assistant for rewriting, paraphrasing, and sentence restructuring — by AI21 Labs
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About Wordtune
Having tested Wordtune across diverse writing tasks, its sentence rephrasing suggestions provided genuinely natural stylistic alternatives without altering original intent. The Chrome extension integrates smoothly across Google Docs, Outlook, and LinkedIn. The free tier is strictly limited to 10 rewrites per day, quickly necessitating the $9.99/month Unlimited subscription for daily professional use. Built on AI21 Labs' proprietary Jurassic models, it is one of the most natural, human-sounding sentence rewording assistants available.
Wordtune is an AI-powered writing assistant by AI21 Labs, designed to help writers express themselves with clarity, confidence, and authenticity. With over 10 million users worldwide and 782 million rewrite suggestions chosen, Wordtune is one of the most widely used sentence-level AI writing tools available.
Unlike AI tools that generate content from scratch, Wordtune focuses on improving and refining what you've already written. Its core Rewrite feature offers context-aware sentence restructuring suggestions that preserve your meaning while improving clarity, flow, and tone. You can instantly switch between formal and casual tones, shorten or lengthen sentences, summarize documents or YouTube videos, check grammar, humanize AI-generated text, and translate from 10+ languages into natural English.
Wordtune is ideal for students, ESL writers, professionals, bloggers, and content creators who want to express their ideas more precisely and naturally — particularly for email, essays, social media posts, and professional communications where tone and clarity matter most.
Key Features
- Context-aware sentence rewriting with multiple style alternatives
- Formal and casual tone switching with one click
- Sentence shortening and lengthening to hit word count targets
- AI summarizer for documents, articles, and YouTube videos
- Grammar checker with real-time spelling and punctuation correction
- AI writing continuation to overcome writer's block
- AI Humanizer to make AI-generated text sound more natural
- Smart Translate from 10+ languages into natural English
- Smart Synonym generator for vocabulary expansion
- Chrome extension (4.7/5), Edge extension, and iOS app
Pros
- 10M+ users and 782M rewrites chosen — proven at massive scale
- Context-aware suggestions preserve original meaning while improving clarity
- Tone switching (formal/casual) is instant and accurate
- YouTube video summarizer is a unique productivity feature
- Excellent for ESL writers needing natural-sounding English
- Free plan available with no credit card required
- Built on AI21 Labs' advanced language model technology
Cons
- Only writes output in English — not for non-English content creation
- Free plan has daily usage limits on rewrites and summaries
- Not designed for long-form content generation from scratch
- Less powerful for deep developmental editing than ProWritingAid
- Some advanced features require premium subscription
Pricing & Plans
Free plan includes 10 rewrites/day (no card required) + 3-day trial of paid tiers — Advanced $6.99/mo billed annually ($13.99/mo monthly), Unlimited $9.99/mo
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Frequently Asked Questions
Yes — Wordtune has a free plan with limited daily rewrites and access to core features. Premium plans unlock unlimited rewrites and advanced AI features for approximately $9.99/month.
Wordtune writes output only in English, but it can translate text from 10+ languages including Spanish, Mandarin, Arabic, Hindi, Korean, Hebrew, Russian, German, French, and Portuguese into natural English.
Yes — Wordtune's summarizer can condense YouTube videos, web articles, and documents into key points, making it a unique productivity tool for research and content creation.
Both tools offer paraphrasing, but Wordtune is stronger at context-aware sentence rewriting that sounds more natural, while QuillBot offers more paraphrasing modes (8 total) and a more comprehensive academic toolkit with citation generation.
Yes — Wordtune has a Chrome extension (rated 4.7/5) and a Microsoft Edge extension that work directly in Gmail, Google Docs, and most web-based writing platforms.
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Compared with Wordtune
Direct head-to-head feature matrices, pricing breakdowns, and real-world performance benchmarks
