Wordtune
Free tierExpress yourself with confidence — AI-powered paraphrasing, rewriting, and writing assistant
Free tier available·All audiences·Powered by AI21 Labs
Key strengths
Context-aware rewrite and paraphrase suggestions tailored to your writing styleFull-suite reading and writing assistant including summarization of documents and YouTube videosFact-checked AI writing that verifies sources before generating contentTone switching between formal and casual with one clickMultilingual translation into English from 10+ languages
Free tier + paid plans
Tel Aviv, Israel
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Technical Integration & Setup
Wordtune is primarily a consumer-facing SaaS product with browser-level integration rather than a developer API product. However, here's what technical users need to know:
- Browser Extensions: Install the Chrome Extension or Microsoft Edge add-on to enable Wordtune across any web-based text input, including Google Docs, Gmail, LinkedIn, and more.
- iOS App: Available on the App Store with a 97% rating, enabling mobile writing assistance on the go.
- AI Backend: Powered by AI21 Labs' proprietary LLMs, optimized for natural language rewriting, summarization, and generation tasks.
- Fact Verification Pipeline: AI-generated factual content is cross-referenced against at least 5 independent sources before being surfaced to the user — reducing hallucination risk in generated copy.
- Wordtune for Business: A dedicated business tier is available for teams, supporting collaborative use cases and organizational deployments.
- No public REST API is currently advertised for third-party developer integration on the consumer product.