LanguageTool

LanguageTool is a writing assistant for spelling, grammar, punctuation, casing and style across 31 languages. It also offers tone detection, writing statistics and paraphrasing, with options to make sentences more formal, fluent, simple or concise. It works through browser extensions, Windows and macOS desktop apps, and an iOS app, and integrates with Google Docs, Microsoft Word, Apple Pages and LibreOffice. Email add-ons are available for Gmail, Outlook, Apple Mail and Thunderbird. The free version checks spelling, simple punctuation and some style issues, with a limit of 2,000 characters per text field; Premium supports up to 150,000 characters per field. Premium is offered monthly, quarterly, annually or every two years, but no plan prices are listed. Text typed with the browser add-on is usually not saved, while text in the editor is stored and accessible across devices. Teams can manage invited users and share style guides and dictionaries. Business solutions are described as GDPR-conform.

LanguageTool offers a broad set of writing checks and integrations, with a free tier for basic corrections. Consider the character limits and editor storage behavior before choosing where to work with text.

LanguageTool suits people who want writing checks across languages and common browsers, apps or word processors. Teams may find its shared style guides and dictionaries useful for consistent terminology.

Overview

LanguageTool is a writing assistant for people who want corrections across browsers, office apps, and email, with support for 31 languages. It suits everyday writers as well as teams that need shared terminology; its usefulness depends on whether the free checks or Premium’s larger text limit meet your needs.

It covers grammar, spelling, punctuation, casing, style, paraphrasing, tone detection, and writing statistics. Access spans browser extensions, desktop apps, and iOS, with integrations for Google Docs, Microsoft Word, Apple Pages, LibreOffice, Gmail, Outlook, Apple Mail, and Thunderbird. LanguageTool says more than 2,000 organizations trust its AI-based writing tools.

Key features

Corrections and rewriting

The free tier handles spelling, simple punctuation, and some style mistakes, a useful starting point for routine proofreading but not a substitute for the broader checks. LanguageTool also offers grammar, casing, and style suggestions, plus tone detection and statistics. Its paraphraser can make a sentence more formal, fluent, simple, or concise, giving writers several ways to reshape wording without changing tools.

Text limits and storage

Basic allows 2,000 characters per text field; each Premium option raises that to 150,000. That larger field is better suited to long passages, while Basic may require splitting text. Browser add-on text is usually not saved. Text entered in the editor is saved and available across devices, which is convenient for continuity but may not suit people who do not want editor text retained.

Team controls

Teams can invite and manage users by email, and share style guides and dictionaries to keep wording and terminology consistent. Business solutions are described as GDPR-conform and support a consistent brand voice. These controls make the team offering more relevant to organizations than to solo writers; the team plan supports up to 20 users.

Pricing

LanguageTool uses a freemium model. Basic costs custom pricing and allows 2,000 characters per text field; the free tier covers spelling, simple punctuation, and some style mistakes. It is the sensible starting point for short, basic corrections.

Premium Monthly, Premium Quarterly, Premium Annual, and Premium 2-Year each cost custom pricing and support 150,000 characters per text field. Individual Premium is offered with monthly, quarterly, annual, or two-year billing. Choose among them based on the term you want; each keeps the same stated per-field limit. Premium includes a 14-day money-back guarantee, with cancellation and refund without questions.

Team costs custom pricing, supports 20 users, and allows 150,000 characters per text field. Shared style guides, dictionaries, and user administration make it the more appropriate option for groups that need coordinated writing. Individual Premium is a better fit for one writer who needs the larger text field rather than team controls.

Platforms

LanguageTool works in common browsers and word processors, with Windows, macOS, and iOS apps. Office integrations cover Google Docs, Microsoft Word, Apple Pages, and LibreOffice; email add-ons cover Gmail, Outlook, Apple Mail, and Thunderbird. That breadth helps writers check text in familiar working environments, though Android is not among the stated app platforms.

Who it's for

LanguageTool is a practical choice for multilingual writers who want proofreading across several apps, or teams that need shared terminology and brand-voice controls. Free users can handle basic mistakes in shorter text fields; writers regularly checking long passages are better served by Premium. Those who prefer not to have editor text saved should use the browser add-on, where text is usually not retained.

Pros and cons

• Pros: Support for 31 languages and integrations across office and email apps make it useful across varied writing workflows.
• Pros: Premium’s 150,000-character field limit accommodates much longer passages than Basic’s 2,000-character limit.
• Pros: Team user management, shared style guides, and dictionaries help organizations maintain consistent language.
• Cons: The free tier is limited to spelling, simple punctuation, and some style mistakes, so broader checks require more.
• Cons: Text entered in the editor is saved and accessible across devices, unlike browser add-on text, which is usually not saved.
• Cons: Plan prices are custom pricing, so readers cannot compare the listed individual terms by price.

Alternatives

Grammarly is another freemium option with a free plan and Android and iOS platforms; consider it if mobile availability on Android matters.

DeepL Write offers a freemium plan and platforms including Android, browser extension, iOS, macOS, and Windows; choose it if you want an Android option or its Write Pro add-on.

Wordtune has a free plan with 10 rewrites and AI suggestions per day, three AI summarizations per month, and unlimited spelling corrections and grammar checks. It may fit writers who want those rewrite and summarization allowances.

QuillBot offers a free plan with paraphrasing up to 100 words, two modes, and basic grammar, and spans Android, browser extension, iOS, macOS, web, and Windows. It is worth considering if those platforms and free paraphrasing limit suit your workflow.

TextCortex offers a free plan and web, iOS, and Android access; pick it if those platforms better match where you write.

Jenni AI has a free plan and Android, browser extension, iOS, and web platforms; consider it if that platform mix is a better fit.

ProWritingAid offers a free plan and a browser extension; consider it if you want a browser-extension alternative.

Trinka is a freemium alternative available through an extension, macOS, web, Windows, API, and self-hosted options.

For more choices, see AI writing assistants, AI Grammar Checkers, and Grammar checkers.

Verdict

Choose LanguageTool if you want multilingual corrections integrated into office and email tools, or shared writing controls for a team. Its main advantage is that breadth of language and workflow support; look elsewhere if you need a published plan price or do not want editor text saved across devices.