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Antidote alternatives: 4 apps ranked by verified data

Facts checked Oct 25, 2026AppBreakup editorialHow we rank

Common reasons people leave Antidote: no free plan, and interface is dense compared with browser checkers. We ranked 4 alternatives by how directly each one replaces Antidote, then by reviews, real visits and how recently each app's facts were checked against its own website. LanguageTool currently ranks first.

Quick comparison

#AppPricingOpen sourcePlatformsVerified factsScore
1LanguageTool logoLanguageToolFree plan + paidYesWeb, Windows, macOS +35 of 566.5
2Grammarly logoGrammarlyFree plan + paidNoWeb, Windows, macOS +34 of 462.6
  1. LanguageTool logo

    1. LanguageToolTop pick

    Best for: People who write in several languages, or who want a checker they can self-host

    Free plan + paidOpen sourceSelf-hostableWeb, Windows, macOS, iOS, Browser extension, Self-hosted

    66.5

    score / 100

    Why switch from Antidote

    Covers French, English and many more languages, with a free tier.

    Pros

    • Strong support for over 30 languages
    • Open-source engine can be self-hosted
    • Works in Word, Google Docs, LibreOffice and browsers

    Cons

    • Free tier caps text length per check
    • Self-hosted version lacks the premium AI checks
    • Tone and rewriting help is lighter than AI-first tools
    Visit LanguageTool Details and reviews
    How this score is calculated
    Editorial fit ×0.3100
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is LanguageTool a good Antidote alternative?

    Verified facts

    5 of 5 verified
    Languages
    More than 30
    Checked Oct 25, 2026languagetool.org(opens source in a new tab)
    License
    LGPL-2.1
    Checked Oct 25, 2026github.com(opens source in a new tab)
    Characters per check
    2,000 free / 150,000 Premium
    Checked Oct 25, 2026languagetool.org(opens source in a new tab)
    Money-back guarantee
    14 days
    Checked Oct 25, 2026languagetool.org(opens source in a new tab)
    Desktop and mobile apps
    Windows, macOS, iOS
    Checked Oct 25, 2026languagetool.org(opens source in a new tab)
  2. Grammarly logo

    2. Grammarly

    Best for: English writers who want corrections and AI help everywhere they type, without changing apps

    Free plan + paidWeb, Windows, macOS, iOS, Android, Browser extension

    62.6

    score / 100

    Why switch from Antidote

    Faster, more automated English corrections if you rarely write in French.

    Pros

    • Works across browsers, desktop apps and phone keyboards
    • Free plan is genuinely useful for spelling and grammar
    • Team style guides and brand tones on business plans

    Cons

    • Text is processed in the cloud, which rules it out for some work
    • Best features need Pro, and monthly billing is expensive
    • Mostly English; weak for other languages
    Visit Grammarly Details and reviews
    How this score is calculated
    Editorial fit ×0.387
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Grammarly a good Antidote alternative?

    Verified facts

    4 of 4 verified
    Free plan
    Yes, $0/month
    Checked Oct 25, 2026grammarly.com(opens source in a new tab)
    Starting price
    $12 per member/month, billed annually (Pro)
    Checked Oct 25, 2026grammarly.com(opens source in a new tab)
    Free AI prompts
    100 per month
    Checked Oct 25, 2026grammarly.com(opens source in a new tab)
    Users
    Over 40 million people
    Checked Oct 25, 2026grammarly.com(opens source in a new tab)

The best Antidote alternative for…

The highest-ranked app in this list for each need.

LanguageTool logo

Best Antidote alternative for most people

LanguageTool

Covers French, English and many more languages, with a free tier.

Harper logo

Best Antidote alternative for a free option

Harper

Free, local and open source for English, if you don't need French.

Grammarly logo

Best Antidote alternative for a free plan you can upgrade

Grammarly

Faster, more automated English corrections if you rarely write in French.

LanguageTool logo

Best Antidote alternative for open source

LanguageTool

Covers French, English and many more languages, with a free tier.

LanguageTool logo

Best Antidote alternative for self-hosting

LanguageTool

Covers French, English and many more languages, with a free tier.

ProWritingAid logo

Best Antidote alternative for Mac

ProWritingAid

Deeper English style analysis for long-form writing.

LanguageTool logo

Best Antidote alternative for Windows

LanguageTool

Covers French, English and many more languages, with a free tier.

Harper logo

Best Antidote alternative for Linux

Harper

Free, local and open source for English, if you don't need French.

Grammarly logo

Best Antidote alternative for iPhone and Android

Grammarly

Faster, more automated English corrections if you rarely write in French.

LanguageTool logo

Best Antidote alternative for working in the browser

LanguageTool

Covers French, English and many more languages, with a free tier.

Antidote alternatives: common questions

What is the best alternative to Antidote?

LanguageTool ranks first right now. Covers French, English and many more languages, with a free tier. Grammarly and ProWritingAid follow it in our ranking.

Is there a free alternative to Antidote?

Yes. LanguageTool (free plan + paid), Grammarly (free plan + paid), ProWritingAid (free plan + paid) and Harper (open source) have a free option. Check each app's verified facts for current plan limits.

Is there an open-source alternative to Antidote?

Yes: LanguageTool and Harper. LanguageTool can also be self-hosted.

Which Antidote alternatives work on Linux?

Harper runs on Linux.

Why do people switch from Antidote?

The complaints we hear most: no free plan; interface is dense compared with browser checkers; only English and French.

How is this list ranked?

Every app is scored with the same published formula: how directly it replaces Antidote, reviews (weighted by verification), visits from AppBreakup, how recently its facts were checked against its own website, and reader votes.