Wordtune is an AI-powered writing assistant built by AI21 Labs for anyone who writes in English but wants their words to land more clearly and confidently. It targets students, professionals, non-native English speakers, and content creators who need to rewrite awkward sentences, adjust tone, or clean up grammar without hiring an editor. The core workflow is simple: paste or type text, and Wordtune suggests context-aware rewrites, tone shifts, and corrections in real time. It's positioned as a lighter-weight, more style-focused alternative to generic grammar checkers, emphasizing authentic voice over robotic correction.
What it does
Wordtune functions as a rewriting and proofreading layer over existing text. Users highlight a sentence or paragraph and receive multiple AI-generated alternatives that preserve the original meaning while improving flow, concision, or formality. Beyond rewriting, it handles grammar and spelling correction, AI text summarization, and tone switching between casual and formal registers. The tool is delivered as a web app, a browser extension for use inside Gmail, Google Docs, and other web-based writing surfaces, and mobile apps for iOS and Android. This makes it usable directly where people already write, rather than requiring users to copy text into a separate editor for every check.
Key capabilities
- Context-based rewrite suggestions: Offers multiple phrasing alternatives for a selected sentence, tailored to preserve intent while improving clarity or style.
- Tone switching: Toggles between casual and formal tone with one click, useful for adapting the same message across emails, reports, or social posts.
- AI proofreading: Checks spelling, grammar, and phrasing issues before sending or publishing, going beyond basic spell-check.
- AI summarization: Condenses longer passages into shorter summaries, useful for digesting long documents or drafting recaps.
- Cross-platform availability: Works via web app, browser extension, and native iOS/Android apps, embedding into existing writing platforms like Gmail and Google Docs.
- Mobile-first interface: Provides a dedicated mobile experience for editing and rewriting text on the go, not just a scaled-down desktop view.
Pricing
Wordtune follows a freemium model. The Basic plan is free and includes limited daily rewrites and AI suggestions (10 per day), limited monthly AI summarizations (3 per month), and unlimited spelling and grammar checks. Paid tiers include an Advanced plan (listed at $6.99/month, discounted to $4.89/month billed annually) with 30 daily rewrites and 15 monthly summarizations, and an Unlimited plan (listed at $9.99/month, discounted to $6.99/month billed annually) offering unlimited rewrites, summarizations, spelling/grammar checks, vocabulary enhancements, clarity improvements, and premium support. Both paid tiers advertise a 3-day free trial. Pricing page: View pricing.
Editorial review
Wordtune's strength is its focus on rewriting for voice and clarity rather than just flagging grammatical errors, which differentiates it from strictly rule-based grammar checkers. The tone-switching feature and context-aware rewrite suggestions are practical for professionals who move between casual internal messages and formal external communication throughout the day. Browser extension support for Gmail and Google Docs means the tool integrates into existing workflows instead of demanding a separate editing step, which lowers friction for daily use.
The trade-off is usage limits: the free Basic tier caps daily rewrites at 10 and monthly summaries at 3, which will feel restrictive for anyone doing heavy daily writing, pushing serious users toward the Advanced or Unlimited paid tiers fairly quickly. Pricing is also modest but not trivial for casual users, and the discount structure (billed annually vs. monthly) requires reading the fine print to understand real costs. There's no indication of API access, team/enterprise collaboration features, or offline desktop support in the available material, so teams needing centralized billing or admin controls should verify those needs directly.
Overall, Wordtune is best suited to individual writers, students, and non-native English speakers who want quick, in-context rewriting help embedded in tools they already use, rather than enterprises seeking a full content operations platform. Those needing unlimited AI summarization or highest-volume rewriting will likely need to commit to the Unlimited plan to get consistent value.
