Antidote
Grammar corrector, dictionaries and language guides in one
What is Antidote?
Antidote is writing assistance software from the Quebec company Druide informatique that combines a grammar and style corrector with dictionaries and language guides for English and French. Individuals buy it as Antidote+, an annual subscription covering three applications: Antidote 12 for Windows and Mac, Antidote Web in a browser, and Antidote Mobile for iPhone and iPad. Connectors link the corrector to word processors, mail clients, browsers and other software.
Antidote is a paid product with a free trial, starting at CA$59.95 for the first year, then CA$48 per year (Antidote+ Personal). See every plan
Good for
- People who write in both English and French
- Editors and translators who want explanations with each correction
- Families: one subscription covers five users
- Organizations that need a corrector installed without external servers
Worth knowing
- Druide's store lists prices in Canadian dollars, plus taxes where applicable.
- The subscription is billed once a year with no monthly option, and store purchases are not refundable.
- English and French are separate: one language is included, and having both costs CA$89.95 instead of CA$59.95.
- There is no native Android app. Android, Chromebook and Linux users work in Antidote Web, and Antidote Mobile has no corrector of its own.
Key features
- Corrector
- Flags spelling, grammar and typography errors with a tooltip explaining each one, and its filters pick out repetition and non-inclusive wording.
- Reformulation
- A subscription-only mode that uses generative AI trained by Druide's linguists to rewrite, retouch, soften or shorten a passage or a segment of it.
- Dictionaries
- Definitions link on to synonyms, antonyms, word combinations, conjugations and word families, with audio pronunciation for subscribers.
- Language guides
- 578 articles cover grammar, style, spelling and punctuation, and the corrector's tooltips link to the article that explains the rule in question.
- Anti-Oops! for email
- Steps in when Send is clicked to prompt a final check of the email, confirm that the intended attachments are included, and flag wording that may be badly received.
- Connectors to other software
- The free Connectix utility links Antidote 12 or Antidote Web to more than 90 applications, so corrections are applied in the original document.
Antidote pricing
- Starts at
- CA$59.95 for the first year, then CA$48 per year (Antidote+ Personal)
- Free plan
- None
- Free trial
- 30-day free trial of Antidote+ with all three applications: Antidote 12, Antidote Web and Antidote Mobile.
| Plan | Price | What you get |
|---|---|---|
| Antidote+ Personal, one language | CA$59.95first year, in Canadian dollars; CA$48 per year on renewal | One-year subscription for 1 user to all three applications, with the corrector, dictionaries and guides for English or French. |
| Antidote+ Personal, English and French | CA$89.95first year, in Canadian dollars; CA$72 per year on renewal | The Personal subscription with both languages, adding translations for 2.8 million words and expressions. |
| Antidote+ Family, one language | CA$99.95first year, in Canadian dollars; CA$80 per year on renewal | One-year subscription for up to 5 family members living under the same roof. Additional users do not need an email address. |
| Antidote+ Family, English and French | CA$149.95first year, in Canadian dollars; CA$120 per year on renewal | The Family subscription for 5 users with both languages and the 2.8 million translations. |
| Organizations | Custom | From 5 devices or users by quote: Antidote 12 per-device licenses, Antidote Web subscriptions or Antidote Pro, priced by tiers. |
Read from antidote.info on Oct 9, 2026. Prices change, so confirm with Antidote before you buy.
Ways to pay less
- Other savingsLower price on renewal
Antidote+ costs less from the second year: Personal with one language is CA$59.95 for the first year and CA$48 on renewal, and Family CA$99.95 then CA$80.
Stated on antidote.info - EducationPreferential pricing and site licenses for schools
Druide's organizations page says schools get preferential pricing and can buy a site license, with quotes available on request.
Stated on antidote.info - Other savingsUpgrade discount for owners of earlier editions
People who already own an earlier edition of Antidote are offered a discounted switch to Antidote+ through the store's upgrade options.
Stated on antidote.info
Works with
- Microsoft Word
- Outlook
- Google Docs
- Gmail
- LibreOffice
- Adobe InDesign
- Visual Studio Code
- WordPress
Antidote alternatives
- Antidote vs LanguageTool
Free plan · from $4.99/mo
- Antidote vs Grammarly
Free plan · from $12/mo
- Antidote vs ProWritingAid
Free plan · from $10/mo
- Antidote vs DeepL Write
Free plan · from €6.99/mo
- Antidote vs Hemingway Editor
Free plan · from $8.33/mo
Common questions
Is Antidote free?
No, Antidote is a paid product, but you can try it first. 30-day free trial of Antidote+ with all three applications: Antidote 12, Antidote Web and Antidote Mobile.
How much does Antidote cost?
Antidote lists 5 plans. Antidote+ Personal, one language: CA$59.95 first year, in Canadian dollars; CA$48 per year on renewal. Antidote+ Personal, English and French: CA$89.95 first year, in Canadian dollars; CA$72 per year on renewal. Antidote+ Family, one language: CA$99.95 first year, in Canadian dollars; CA$80 per year on renewal. Antidote+ Family, English and French: CA$149.95 first year, in Canadian dollars; CA$120 per year on renewal. Organizations: custom pricing. Prices were read from antidote.info on Oct 9, 2026.
What platforms does Antidote work on?
Antidote is available on Web, macOS, Windows and iOS. It also has a browser extension.
Does Antidote offer any discounts?
Antidote publicly lists the following: Lower price on renewal; Preferential pricing and site licenses for schools; Upgrade discount for owners of earlier editions.
Does Antidote have an Android app?
No Android app was listed when its pages were read on Oct 9, 2026. Antidote is listed for Web, macOS, Windows and iOS.
Does Antidote have a Linux app?
No Linux app was listed when its pages were read on Oct 9, 2026. Antidote is listed for Web, macOS, Windows and iOS.
Is Antidote open source?
Antidote is not described as open source on its own site, as read on Oct 9, 2026.
Does Antidote work offline?
Yes, according to its own site. What works without a connection differs by plan and platform, so check the vendor's page for the detail.
What does Antidote integrate with?
Antidote's listing names Microsoft Word, Outlook, Google Docs, Gmail, LibreOffice, Adobe InDesign, Visual Studio Code and WordPress. A listing names up to eight integrations, so it may connect to more.
Does Antidote have a student discount?
Preferential pricing and site licenses for schools. Druide's organizations page says schools get preferential pricing and can buy a site license, with quotes available on request.
Who makes Antidote?
Antidote is made by Druide informatique. It dates from 1996.
What are the alternatives to Antidote?
The closest alternatives to Antidote in our directory are LanguageTool, Grammarly, ProWritingAid, DeepL Write and Hemingway Editor. Each one has a side-by-side comparison with Antidote.
Sources for this page
The prices, plans, platforms and features above were read from these pages on Oct 9, 2026.