LanguageTool vs Outwrite (2026): which should you pick?

Pick LanguageTool if

• Fits if you write in several languages and not only English
• Works for people who write in LibreOffice, Thunderbird or Apple Pages and want a checker inside them

Look elsewhere if

• Pricey if you pay monthly, at $24.90 against $69.90 for the whole year
• Tight if you're staying free, as it checks 2,000 characters per text field and allows 3 AI rephrasings a day
• Watch out: there's no Premium trial, only a 14-day money-back guarantee, and Teams is sold from 2 users
• Skip it if you want an app on an Android phone, as none appears on the site
• Too light for plagiarism checks, AI-text checks or summarising, which some rivals include

Pick Outwrite if

• Fits if you want basic spelling and grammar checks without paying
• Works for people who write in Chrome, Google Docs or Word

Look elsewhere if

• Tight if you want style help, because style, structure and rewriting need Pro
• Pricey if you pay monthly: $24.95 against $9.95 on a yearly plan
• Skip it if you want a desktop or phone app, as none is listed
• Watch out: Teams is for groups of 3 or more, and the pricing page says to contact the company

LanguageTool

• The free Basic plan checks 2,000 characters per text field and allows 3 AI rephrasings a day.
• There is no free trial of Premium; LanguageTool offers a 14-day money-back guarantee instead.
• Monthly billing is $24.90, more than four times the per-month cost of the annual plan.
• Apps are listed for Windows, macOS and iOS; no Android app appears on the site.

Outwrite

• Style, structure and rewriting suggestions need the paid Pro or Teams plan.
• The monthly-billed Pro price is more than double the yearly-billed price.
• Teams is offered to groups of 3 or more, and the pricing page says to contact the company for details.
• The site lists Chrome, Edge, Google Docs and Word, with no desktop or mobile apps.

LanguageTool

Grammar, spelling and style checks

Checks grammar, punctuation, spelling, casing and style. Premium adds more than 20,000 extra checks for English, German, French, Spanish, Dutch, Polish and Portuguese.

AI paraphrasing

Rephrases a sentence to be more formal, more fluid or shorter. Basic accounts get 3 rephrasings a day and Premium removes the limit.

Long-text checking

Premium checks up to 150,000 characters per text field, against 2,000 on the Basic plan.

Style guide and dictionaries

Custom rules enforce consistent wording. Teams share a style guide and a dictionary of approved terms, with admins deciding who can add to them.

Add-ons and apps

Browser add-ons for Chrome, Edge, Firefox, Safari and Opera, plugins for Google Docs, Word, Apple Pages and LibreOffice, email add-ons, and apps for Windows, macOS and iOS.

Open-source core and API

The core checker is open source, with code on GitHub, and users can set up their own LanguageTool server. A hosted Proofreading API accepts up to 60,000 characters per request.

Outwrite

Spelling and grammar

Flags misspellings, grammar and punctuation errors in English, French and Spanish, with a thesaurus for alternate wording.

Style and structure suggestions

Pro-only suggestions the vendor says use AI to improve flow, sentence construction and passive voice.

Sentence rewriting

Offers shorter, longer or different versions of a sentence. The vendor labels the rewrite feature experimental.

Writing statistics

Tracks readability and grade-level scores as you type, available on the free plan too.

Plagiarism checks

Compares a document with publicly available text on the internet: 50 checks a month on the paid plans.

Works where you write

Chrome and Edge extensions plus add-ons for Google Docs and Word, and a web editor with uploads.

LanguageTool

• Basic$0

  Grammar, punctuation and spelling checks on up to 2,000 characters per text field, with 3 AI sentence rephrasings a day.

• Premium$5.83

  per month, billed annually ($69.90); $24.90 billed monthly

  Up to 150,000 characters per text field, 20,000+ extra checks, unlimited AI paraphrasing and a personal style guide. Also $49.90 a quarter or $119.80 for 2 years.

• Teams$66.40

  per user / year, for a team of 2 users

  Every Premium feature plus user management, a team style guide and a team dictionary. Sold from 2 users, with a lower per-user price for larger teams.

Outwrite

• Free$0

  Spelling and grammar correction, thesaurus, custom dictionary and writing statistics.

• ProUS$9.95

  per month, billed yearly (US$24.95 billed monthly)

  Adds style and structure suggestions, sentence rewriting, 50 plagiarism checks a month and priority email support.

• TeamsUS$7.95

  per user / month, billed yearly (US$14.95 monthly)

  Pro features at a group discount, with team access management and consolidated billing; for groups of 3 or more.

LanguageTool

• Annual discount

  Longer billing terms cost less per month

  Premium is $24.90 billed monthly, $49.90 a quarter, $69.90 a year or $119.80 for two years, which works out to about $5.83 and $4.99 a month on the two longest terms.

• Education

  Up to 20% off for students and educators

  Students, teachers and professors can claim an educational discount of up to 20% off a Premium subscription.

• Other savings

  Team seats priced below individual plans

  On Teams, each seat costs less than the $69.90 individual annual price: $66.40 per user for 2 users and $62.91 per user from 10 users.

• Other savings

  Limited-time 20% discount on Premium

  The pricing page was advertising a limited-time 20% discount on Premium, with a countdown, when it was checked on 2026-10-05.

Outwrite

• Annual discount

  Cheaper with yearly billing

  Pro is US$9.95 a month billed yearly against US$24.95 billed monthly; Teams is US$7.95 against US$14.95 per user.