AI21 Labs / wordtune.com
AI writing tool from AI21 Labs that rewrites, shortens, and expands sentences with multiple tone and style options directly in the browser.
Free plan
Yes
API access
No
Open source
No
Platforms
5
Wordtune is a writing enhancement tool from AI21 Labs that focuses specifically on helping users rewrite sentences and passages to express the same idea more clearly, concisely, or in a different tone. Where Grammarly fixes grammatical errors, Wordtune suggests fundamentally different ways of expressing the same thought.
The core feature is rewrite suggestions. Select a sentence or paragraph and Wordtune generates multiple alternative phrasings with different tones including casual, formal, confident, and direct. This is particularly useful for non-native English speakers who have the right idea but struggle to express it naturally, for writers who want to avoid repetitive sentence structures, and for anyone who wants to see how a thought might be expressed differently.
The Shorten and Expand features reduce or extend content length while preserving the core meaning. Shortening is useful for fitting content within character limits or for making dense text more accessible. Expanding is useful for developing a point that feels underdeveloped.
The free plan with 10 rewrites per day is genuinely useful for occasional writing enhancement without a subscription. The Plus plan at $13.99/month provides unlimited rewrites and access to AI-generated content, notes, and article templates.
Wordtune is at its best as a complement to writing rather than a replacement for it. Users who write their own content and want to explore different expressions of the same idea will find it useful. Users who want AI to generate content from scratch are better served by ChatGPT, Jasper, or Writesonic.
Wordtune runs as writing assistant software built around text workflows. Users typically start with a prompt, upload, or connected data source, and the underlying model handles the heavy lifting before returning a result you can refine or export. It's available on web, ios, and android.
The capabilities that matter most for teams evaluating Wordtune.
Generates multiple alternative phrasings of selected text with different tones and styles.
Reduces or extends content length while preserving the core meaning for different context requirements.
Rewrites content to match casual, formal, confident, or other tone specifications.
Free plan with 10 rewrites/day. Plus $13.99/month. Unlimited $19.99/month billed monthly. Team plans available.
Model
Freemium
Starting price
$13.99/mo
Free trial
No
Grammarly is better for comprehensive grammar and style checking. ChatGPT and Claude are better for generating content from scratch. QuillBot is a direct competitor for paraphrasing and rewriting.
A side-by-side look at the closest alternative in this category.
Key facts about model providers, platforms, and team support.
Model Provider
AI21 Labs
Platforms
Web, iOS, Android, Chrome extension, Google Docs
Deployment
SaaS
Integrations
Google Docs, MS Word, Chrome
Team Collaboration
No
Launch Year
2020
Compliance signals and data-handling notes as reported by the vendor.
Review Wordtune's data handling policy. Text entered for rewriting is processed by AI21 Labs' infrastructure.
Review privacy policy before using with confidential content. Text is processed by AI21 Labs' servers.
Editorial Verdict
Wordtune is the best tool for users who want to explore different ways of expressing the same idea. For comprehensive grammar checking, Grammarly is more appropriate. For generating content from scratch, ChatGPT or Jasper are better choices.
Last verified July 24, 2026.
The browser extension and Google Docs integration mean Wordtune works where most users already write, which reduces the friction of adding it to a writing workflow.
Free plan with 10 rewrites/day. Plus $13.99/month. Unlimited $19.99/month billed monthly. Team plans available.
Free with basic checks. Pro $12/month billed annually ($30/month billed monthly). Business $15/member/month with team features and style guides.
Review Wordtune's data handling policy. Text entered for rewriting is processed by AI21 Labs' infrastructure.
Business plan includes SSO and admin controls. Enterprise with data handling agreements.
Review privacy policy before using with confidential content. Text is processed by AI21 Labs' servers.
The browser extension reads all text typed in a browser, including potentially sensitive content. Review settings and consider disabling for confidential work.
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