LanguageTool vs Wordtune: pricing, features and which to choose

LanguageTool is a grammar, spelling, punctuation, style, and paraphrasing service that began as Daniel Naber’s computational-linguistics diploma project in 2003. It later became commercial and Learneo acquired it on April 5, 2023, for undisclosed financial terms. LanguageTool says its browser add-on has more than 2 million active installations, serves more than 150 companies, and improves more than 20 million texts daily. These figures are company claims. The product supports more than 30 languages and remains separate from Learneo’s other writing brands. Its open-source core can run locally or in the cloud. Hosted Premium and AI features are commercial services, giving users a choice between self-managed checking and expanded hosted capabilities for writing, editing, and paraphrasing.

A typical LanguageTool workflow begins in a browser extension, desktop application, mobile application, supported word processor, or the LanguageTool editor. The service identifies spelling, grammar, punctuation, word choice, style, typography, and some contextual issues, then offers suggestions users may accept or reject. Premium adds more than 20,000 additional checks for several major languages, a personal style guide, text statistics, larger fields, and unlimited sentence paraphrasing. Teams add user management, shared style guidance, and a shared dictionary. Developers can submit text through the HTTP API, while organizations can request a commercial API or run the server themselves. This range makes the product applicable to individual writing, managed team workflows, and developer integrations requiring programmatic checking.

LanguageTool suits multilingual checking, open-source deployment, and writing through browsers or word processors. Grammarly is the closer consumer comparison, emphasizing English rewriting and business administration, while QuillBot focuses more heavily on paraphrasing. Microsoft Editor is convenient for Microsoft 365 users, but LanguageTool provides a self-hostable core and public checking API. The public API permits 20 requests per IP per minute, 75 KB of text per IP per minute, and 20 KB per request, while automated requests are prohibited. LanguageTool is therefore most suitable when language coverage, deployment control, or local hosting matters more than a larger proprietary suite. Users needing heavy automated traffic should note the public limits and consider the commercial API or self-hosting instead.

Wordtune is an AI writing assistant made by AI21 Labs Ltd, launched in 2020 as a browser extension. It later added summarization, mobile access, whole paragraph generation, and a dedicated web editor for longer work. The product remains accessible, but Israeli reporting in April 2025 said AI21 halted Wordtune development and left it in maintenance mode while shifting attention toward enterprise and business products. That distinction matters for buyers because Wordtune still covers rewriting and summarization, while its product direction appears less active than its feature set. AI21 remains the current owner as of October 22, 2026. No public user or funding total is attached to Wordtune itself, so its scale cannot be quantified from published company details.

Wordtune covers the common editing loop from rough sentence to finished passage. In the web editor, users can rewrite text, change tone, expand or shorten passages, correct grammar and spelling, summarize documents, ask AI questions, generate ideas, and continue writing from context. Its browser extension places inline suggestions inside text boxes and supports Gmail, Google Docs, Slack, and social or web applications. Users can work through Chrome, Edge, Firefox, Arc, or the iPhone app. Wordtune supports English rewriting and translation input from Spanish, Mandarin, Arabic, Hindi, Korean, Hebrew, Russian, German, French, and Portuguese into English. The workflow suits paragraph revisions, email polishing, and quick alternatives more than autonomous long form authorship.

Wordtune is strongest when the job is producing contextual phrasings, adjusting tone, or reshaping a paragraph inside the writing surface. Its maintenance mode reporting may concern buyers seeking active feature development, a published consumer model roadmap, self hosting, or a broad proofreading suite. QuillBot offers explicit paraphrasing modes such as Academic, Formal, Simple, Expand, and Shorten. ProWritingAid is another writing focused alternative with deeper style reports. Sudowrite, Novelcrafter, NovelAI, and Squibler are relevant writing alternatives with different documented scopes. Pick Wordtune for contextual rewriting and tone alternatives at a low annual entry price, provided its current development status fits your needs.