Overview
Wordtune is an AI writing assistant built by AI21 Labs that specializes in sentence-level rewriting rather than full-document generation. Where most AI writers try to produce content from a blank prompt, Wordtune takes the opposite approach: you supply the draft, and it helps you express the same idea more clearly, more concisely, or in a different register. Select any sentence and it proposes several alternative phrasings, each preserving your original meaning while adjusting clarity, tone, or length.
The product is aimed squarely at people who have the substance but struggle with the surface — non-native English speakers, professionals polishing client-facing emails, students refining essays, and editors working through rough drafts. Instead of rewriting everything, you apply it where it matters, which keeps the author’s voice intact.
Under the hood, Wordtune offers several distinct modes. The core rewrite engine generates multiple phrasings for improved flow. Tone controls shift a passage between casual and formal, so the same message reads right in a Slack thread versus a quarterly report. The expand and shorten modes add context to terse sentences or compress rambling ones. A separate Spices feature injects contextual additions — examples, counterarguments, definitions — directly into your text.
Wordtune Read extends the tool beyond writing into reading. Paste an article, upload a PDF, or drop in a YouTube link and it returns a structured summary of the key points, letting researchers and students triage long content fast. Smart Translate converts text from roughly ten languages into English while keeping the rewriting pipeline intact.
The experience is delivered mainly through a browser extension for Chrome and Edge that works inline across Gmail, Google Docs, LinkedIn, Slack, and most web text fields, plus an iOS app and a web editor. Daily limits on the free plan are enough to evaluate the quality before paying.
Key Features
- AI rewriting and paraphrasing with context-aware suggestions
- One-click casual and formal tone switching
- Sentence expand and shorten controls
- Read and Summarize for text, PDFs, and YouTube videos
- Grammar and spelling proofreading with smart translation
Pricing
| Plan | Price | For |
|---|---|---|
| Free | $0 | 10 rewrites/day, 3 summaries/mo |
| Advanced | $13.99/mo ($6.99 billed annually) | Professionals, 30 rewrites/day |
| Unlimited | $19.99/mo ($9.99 billed annually) | Power users, unlimited rewrites |
| Teams | $15.99/seat/mo | Shared billing, admin controls |
Comparison
Compared to Grammarly, Wordtune focuses less on catching errors and more on giving you better ways to say what you meant, making it stronger for rephrasing. Compared to QuillBot, Wordtune’s inline browser integration and YouTube summarization feel more seamless for everyday web writing.
Hands-on Verdict
Wordtune is the writing tool I use to rewrite and refine sentences for clarity and tone — select text and it suggests sharper, more fluent versions. It’s more rewrite-focused than Writer on sentences and a lighter lift than a blank ChatGPT. For drafting I use Writer.
Who it’s for: professionals, non-native writers. Tip: use it to vary tone (formal vs casual) on a draft — Wordtune’s strength is rephrasing, so pick the version that fits the reader.