LanguageTool

LanguageTool is a multilingual writing assistant for people who want corrections within the browsers, apps and writing tools they already use. It is strongest as a broad, cross-platform checker with paraphrasing and team terminology controls; the small free text limit and custom-priced plans make cost harder to judge.

Overview

LanguageTool covers 31 languages and checks grammar, spelling, punctuation, casing and style. It also offers tone detection, sentence paraphrasing and writing statistics. The mix suits everyday writing as well as teams that need shared wording, though the free version handles only spelling, simple punctuation and some style mistakes.

Founded in 2003 and headquartered in San Francisco, LanguageTool says more than 2,000 organizations trust its AI-based writing tools. Its browser add-on text is usually not saved, while texts in the editor are saved and accessible across devices. That gives users a practical choice between a more transient browser workflow and a persistent editor.

Key features

Corrections and rewrites

The paraphraser can make a sentence more formal, fluent, simple or concise, so it is useful for changing register or tightening prose rather than only catching errors. Tone detection and statistics add further feedback, but the free tier's narrow correction coverage means writers seeking comprehensive checks will need more than the free plan.

Integrations and team controls

LanguageTool works with common browsers and word processors, including Google Docs, Microsoft Word, Apple Pages and LibreOffice. Email add-ons cover Gmail, Outlook, Apple Mail and Thunderbird, and Windows, macOS and iOS apps extend it beyond the browser. Teams can invite and manage users by email, then share style guides and dictionaries to keep terminology consistent. Business solutions are described as GDPR-conform and support a consistent brand voice.

Pricing

LanguageTool is freemium. The Basic plan allows 2,000 characters per text field, a meaningful constraint for longer drafts. Individual Premium is offered monthly, quarterly, annually or every two years; each listed term allows 150,000 characters per text field. Premium also has a 14-day money-back guarantee with cancellation and a refund without questions. All these plans have custom pricing.

The Team plan supports 20 users and the same 150,000-character field limit, making it the relevant choice for groups that need shared style guides, dictionaries and administration. Its price is also custom. Choose Basic for short, light checks; Premium for longer texts and individual use; or Team when shared terminology and user management matter. The shorter subscription terms offer less commitment, while the two-year option commits for longer; prices are custom pricing in each case.

Platforms

LanguageTool has a browser extension, desktop apps for Windows and macOS, and an iOS app. Its word-processor and email integrations make it a flexible fit for writers who move between documents and correspondence. Android is not among the supported platforms.

Who it's for

LanguageTool is a sensible fit for multilingual writers who want grammar and style support across several writing contexts, or teams that need shared terminology. It is less compelling for someone who needs a generous free allowance, a clear price before choosing a plan, or Android support.

Pros and cons

Pros: Support for 31 languages and integrations across browsers, office tools and email reduce the need to move text into a separate checker.

Pros: Premium's 150,000-character field limit suits long documents, and its 14-day refund guarantee limits the risk of trying a paid term.

Pros: Team style guides and dictionaries offer a concrete way to standardize terminology across users.

Cons: Basic's 2,000-character field limit and partial free checks restrict its usefulness for long or thorough revisions.

Cons: Custom pricing across the stated plans makes it difficult to compare the commitment before subscribing.

Cons: The listed app platforms omit Android, which rules it out for writers seeking a dedicated Android app.

Alternatives

DeepL Write is worth considering if an Android app is important; it also has browser, iOS, macOS and Windows platforms, with a Write Pro add-on at €6.99 a month, billed annually with VAT included.

Grammarly is another freemium option for readers who want a stated individual price: its Pro plan is $12 a month and includes 2,000 AI prompts per member per month.

QuillBot may suit users prioritizing paraphrasing: its free plan covers paraphrasing up to 100 words in two modes, plus basic grammar.

Wordtune is an alternative for writers who want daily rewrite and AI suggestion allowances, with unlimited spelling corrections and grammar checks on its free Basic plan.

Trinka is another freemium writing tool.

Paperpal is an alternative with a Prime plan at $144 a year, billed annually.

ProWritingAid offers a free plan with 500 words per report run, two report runs per day and 10 rephrases per day.

Sapling is another freemium option.

Browse more grammar checkers, AI Grammar Checkers or AI writing assistants.

Verdict

Choose LanguageTool if you want multilingual correction and rewriting across browser, desktop, mobile, office and email workflows, or if your team needs shared terminology controls. Its breadth is the main reason to pick it; the limited free checks and custom pricing are strong reasons to look elsewhere if you need a longer free allowance or predictable costs.