Wordtune

Wordtune is an AI writing assistant from AI21 Labs that rewrites, shortens and shifts the tone of sentences in a browser extension, an iOS app and a web editor.

Wordtune helps people fix the sentence that came out clumsy, too long or in the wrong register. AI21 Labs makes it and sells it under its own name and mark. Rewriting sits at its centre: a selected sentence comes back in several alternative phrasings to pick from. The same assistant also corrects mechanics, continues a stalled draft and condenses long reading into a summary. Rewrite offers fresh phrasings for a sentence or a whole paragraph, and the Formal and Casual buttons change its register in one click. Expand and Shorten adjust its length while keeping the point. Smart Synonyms suggests a better word in context, and Continue Writing picks up where the writer stopped. Suggested Edits underlines grammar, spelling and punctuation mistakes in a side panel. Ask AI gives tailored guidance on tone, style and structure, and the summarizer condenses documents, articles, webpages and YouTube videos. Students, writers and professionals who write in English every day are the people Wordtune is built for. Non-native speakers get particular use from Translate with Rewrite, which accepts text typed in Spanish, Mandarin, Arabic, Hebrew and several other languages and returns it as English. Anyone can start on the free Basic plan and move to a paid plan once the daily rewrite allowance runs short. Paid plans are billed monthly or annually, and each opens with a short trial. Organizations that need single sign-on and one invoice can arrange SAML SSO and centralized billing beyond the individual plans. Most rewriting happens in Chrome or Microsoft Edge, where the extension opens inside the sites a person already writes in and can be switched off site by site. A reply drafted in a webmail inbox can be made more formal before it goes out, and a message in a chat tool can be loosened into a friendlier tone. On an iPhone, Wordtune for iOS brings the same rewriting to the phone. Longer work lives in the Wordtune AI Workspace, where Editor Libraries keeps pages and summaries together. The job stays the one in the name: tuning a rough sentence until it reads the way it was meant.