Wordtune at a glance

Starting price: $6.99/mo (Advanced)
Free plan: Yes
Platforms: Web, Chrome extension, Mobile

What is Wordtune?

Wordtune, built by Israeli AI research lab AI21 Labs, takes a narrower approach than most writing assistants: instead of generating content from scratch it rewrites sentences you have already written, offering multiple phrasings that preserve your meaning while shifting tone, length or formality. It is particularly effective for non-native English speakers because it infers intent from awkward phrasing. Spices add analogies, counterarguments or statistics, and Wordtune Read summarises long documents.

Two things to factor in. The free plan is capped at around 10 rewrites a day, which does not cover a single article, so regular use effectively requires a paid plan starting near $6.99 a month billed annually. And AI21 Labs publicly reduced investment in Wordtune during 2025 to focus on enterprise AI agents: the product is maintained and still works, but feature development has slowed relative to competitors.

Key Features

Sentence RewritingTone AdjustmentText ExpansionConciseness ToolGrammar CorrectionAI Article SummarizerYouTube SummarizerGoogle Docs & Gmail Integration

How to Use Wordtune

1Install the Wordtune Chrome extension or open the web editor

2Highlight a sentence or paragraph you want to improve

3Choose a rewrite variation from the suggestions

4Apply tone adjustments as needed

5Use the summarizer to condense long articles or videos

6Accept changes and continue writing

Who is Wordtune for?

✅ Best For

Professionals who write high volumes of emails and reports and want real-time suggestions to improve phrasing and tone without interrupting their flow in Gmail or Google Docs
ESL writers and non-native English speakers who want AI assistance finding the most natural-sounding way to express an idea without completely changing the meaning
Content creators who read many industry articles and want the AI summarizer to condense key points from long reads or YouTube videos into quick bullet summaries

❌ Not For

Users who need a full AI writing generator for long-form blog posts or marketing copy from scratch, as Wordtune is an editing and refinement tool that works best on existing text
Fiction writers who need deep narrative assistance with plot development and character voice, since Wordtune focuses on sentence-level improvements
Users needing extensive daily rewrites on the free plan, since it limits to only 10 rewrites per day

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Pricing

Is Wordtune free? Yes, there is a free plan. Paid plans start at $6.99/mo (Advanced).

Free$0

✓10 rewrites/day
✓3 summarizations/month
✓basic grammar

Advanced$6.99/mo

✓30 rewrites/day
✓15 summarizations
✓AI recommendations

Unlimited$9.99/mo

✓Unlimited rewrites and summarizations
✓all features

Prompts to Try

Rewrite this sentence to sound more formal

Make this email introduction more concise

Expand this bullet point into a full paragraph

Summarize this 3000-word article into 5 key points

Rephrase this feedback to sound more diplomatic

Make this LinkedIn headline more engaging

Use Cases

A product manager uses Wordtune's Chrome extension inside Gmail to rewrite her weekly stakeholder update emails, using the formal tone setting to ensure her communication always sounds polished and professional without spending extra time editing.

A marketing analyst uses Wordtune's YouTube summarizer every Monday morning to quickly extract key insights from 10 industry videos she reviews for competitive intelligence, turning 3 hours of viewing into a 20-minute summary session.

A non-native English speaker uses Wordtune daily in Google Docs to refine the phrasing of her research abstracts, using multiple rewrite options to find the most academically natural way to express each sentence.