DeepL Write vs LanguageTool

DeepL Write

• People who already use DeepL Translator and want writing help in the same tool
• Non-native speakers polishing emails and reports in a supported language
• Companies that want shared style rules applied to everyone's writing

LanguageTool

• People who write in several languages, not only English
• LibreOffice, Thunderbird and Apple Pages users who want a checker add-on
• Developers who need a proofreading API or a checker they can host themselves

DeepL Write

• Write Pro is not sold on its own on the pricing page: it is an add-on to Individual and Team and is included in Business and Enterprise.
• Write Pro supports six languages: English, German, French, Spanish, Italian and Portuguese.
• The prices recorded are DeepL's Germany list in euros with VAT included; the pricing page sets the currency by billing country.
• Single sign-on on the Team and Business plans is available for 50 or more users.

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.

DeepL Write

Corrections

Detects and corrects grammar, punctuation and spelling mistakes as you type, with a corrections-only mode and an option to show what changed.

Rephrasing and alternatives

Click any word in the improved text to see alternatives or to rephrase the whole sentence, then choose the wording that fits.

Styles and tones

Writing styles include Business, Academic and Casual, and tones include Friendly, Enthusiastic and Diplomatic.

Style rules

Write Pro applies a shared set of style and tone rules to every suggestion. Team plans get 5 shared style rule lists, Business 20 and Enterprise unlimited.

Apps and integrations

Besides the web editor, Write is in DeepL's Windows and Mac apps, its Chrome extension and its iOS and Android apps, and works inside Google Workspace and Microsoft 365.

Security and admin controls

Paid plans exclude customer text from model training. Team and Business add administration and SSO, and Enterprise adds bring-your-own-key encryption.

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.

DeepL Write

• Free version€0

  DeepL Write on the web for corrections and rephrasing. Write Pro is not included.

• Write Pro add-on€6.99

  per user / month, billed annually, VAT included (Germany)

  Adds Write Pro to an Individual or Team plan, in the same tool used for translation. Not offered on its own on the pricing page.

• Individual€7.49

  per month, billed annually, VAT included (Germany)

  Translation plan for one user with 300,000 characters a month and no data training. Write Pro is an optional add-on.

• Team€24.99

  per user / month, billed annually, VAT included (Germany)

  1,000,000 characters per user a month, 5 shared style rule lists, team administration and SSO. Write Pro is an optional add-on.

• Business€49.99

  per user / month, billed annually, VAT included (Germany)

  Write Pro included, with unlimited characters under a fair usage policy, translation memory, 20 shared style rule lists and SCIM.

• EnterpriseCustom

  Write Pro included, with custom limits, unlimited shared style rule lists, bring your own key and a dedicated account team.

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.

DeepL Write

• Annual discount

  Save 16% with annual billing

  DeepL's pricing page advertises a 16% saving for annual billing on its plans. The Write Pro add-on is €6.99 a month billed annually against €8.99 billed monthly.

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.