Right AI for the Job
Home › Tools › Grammarly vs LanguageTool
Updated 4 September 2026 · Independent comparison

Grammarly vs LanguageTool:
which should you use?

Grammarly and LanguageTool, side by side. Find the one that fits what you need to do.

Find your best fit

The 30-second answer

Grammarly is built for writing, communication & language. LanguageTool is built for writing, communication & language.

Pricing, simplified

Start free. Upgrade when you need more.

2 of 2 have a free plan 0 of 2 prices re-read automatically · how we know No paid placement

The 30-second comparison

If you only read one section, make it this one. Rows where both sides say the same thing are left out — the point is where they differ. Where each row came from is listed underneath.

Grammarly and LanguageTool side by side, with the better fit for each row.
CategoryGrammarlyLanguageToolBetter fit
What it's built forWorks inside the apps you already write in rather than a separate window, which is why it actually gets used. Grammar, tone and clarity in place.Strong across more than 30 languages rather than English alone, and it can be self-hosted, which almost nothing else in this category offers.Tie
Free planYes. Free tier: writing without spelling and grammar mistakes, tone detection, and 100 AI prompts for generating textYes. Free tier covering basic grammar and spellingTie
Cheapest way to pay$30 a month.$24.9 a month.LanguageTool
What the paid tiers cost
  • One person, from $30/month
  • Enterprise, priced on request
  • One person, from $11.07/month
Tie
What to watch out forBetter at fixing than composing. It smooths writing toward a neutral register, which is not always what you want. The free tier caps generation at 100 AI prompts, and the enterprise tier now arrives through Superhuman Go rather than as Grammarly itself.Owned by the same company as QuillBot since 2023. Month to month costs more than four times the annual rate, and there are four payment intervals to pick between, so the interval matters more than the tier. Prices are quoted inclusive of VAT.Tie
Who it is usually forstudents, working professionalsstudents, working professionals, researchersTie
Runs on your own machineHosted service only — your material goes to their servers.Can be run on your own machine, so the material never leaves it.LanguageTool
What it asks of youNo setup — it works in a browser.Expects some technical comfort to get going.Tie
Made byGrammarly — San Francisco, US.Learneo — Redwood City, US.Tie

LanguageTool is ahead on 2 of the 9 rows compared, 1 of them about how well it does the job itself. It is a single row of daylight, so read Grammarly’s column before deciding.

Overall pick

LanguageTool

Strong across more than 30 languages rather than English alone, and it can be self-hosted, which almost nothing else in this category offers.

✓ Strong across more than 30 languages rather than English alone, and it can be self-hosted, which almost nothing else in this category offers. ✓ You want the cheaper paid plan, $24.9 against $30 ✓ The material cannot leave your own machine ✓ You are among researchers
Choose Grammarly instead if…

Works inside the apps you already write in rather than a separate window, which is why it actually gets used.

Grammarly is the better answer when the job is what it was built for rather than what the pick above does broadly.

✓ Works inside the apps you already write in rather than a separate window, which is why it actually gets used. ✓ You would rather not configure anything first ✓ It is built for writing, communication & language ✓ Grammar, tone and clarity in place.

How we know

Every row that separated these two, and where it came from. Nothing here is a hands-on test — if a line rests on a vendor’s own pricing page, it says so and links it.

The 2 rows that decided this page, with the source for each.
RowFavoursWeightWhere it came from
Cheapest way to payLanguageToolEverything elseFrom each vendor’s own pricing page. Dates and pages are listed below.
Runs on your own machineLanguageToolHow well it does the jobFrom this site’s own catalogue record for each product — compiled by hand, not imported. How a product gets listed

The prices

Grammarly. Read by hand off grammarly.com on 4 September 2026. It is not on the monthly re-check, so confirm there before paying. grammarly.com/plans

LanguageTool. Read by hand off languagetool.org on 4 September 2026. It is not on the monthly re-check, so confirm there before paying. languagetool.org/premium

The ratings

The category these two share. Writing, Communication & Language — both are listed there in the catalogue, and the fit recorded against each listing is a judgement made here, by hand.

The nine-category grid below. Derived from what each product is listed for, by one script, once per build — so the same pair always reads the same. It is a derivation, not a review.

What this is not

Neither product was run side by side to produce this page. Nobody was paid to appear on it and nothing here is ranked by commission.

To put the same question to both and read the answers yourself, run them side by side — that is a live test, and this is not.

Choose based on what you’re doing

All ten categories, including the ones where neither of these is the answer. These ratings are derived from what each product is listed for, not from running it — a rating here is a reading of the record, and the record is linked.

01

General-Purpose AI Assistants

Questions, brainstorming, explanations, everyday tasks, decision-making, general advice.

Grammarly
Not a good fit
LanguageTool
Not a good fit
Best choice: Neither
02

Search, Research & Academics

Web research, deep research, books, academic papers, citations, news, fact-checking.

Grammarly
Not a good fit
LanguageTool
Not a good fit
Best choice: Neither
03

Writing, Communication & Language

Emails, reports, essays, editing, summarizing, translation, presentations.

Grammarly
Built for this
LanguageTool
Built for this
Best choice: Tie
04

Coding, Data & Technical Work

Programming, debugging, data analysis, spreadsheets, math, engineering, technical research.

Grammarly
Bad fit
LanguageTool
Bad fit
Best choice: Neither
05

Business, Finance & Professional Work

Business strategy, investing, market research, legal, sales, HR, accounting, consulting.

Grammarly
Not a good fit
LanguageTool
Not a good fit
Best choice: Neither
06

Image & Design

Image generation, photo editing, logos, graphics, product design, advertising creatives.

Grammarly
Bad fit
LanguageTool
Bad fit
Best choice: Neither
07

Video

Video generation and editing, clipping, subtitles, avatars, animation and motion capture.

Grammarly
Bad fit
LanguageTool
Bad fit
Best choice: Neither
08

Audio, Voice & Music

Voice generation, transcription, music, dubbing, sound cleanup and podcast production.

Grammarly
Bad fit
LanguageTool
Bad fit
Best choice: Neither
09

Marketing & Content Creation

Social media, SEO, advertising, copywriting, content ideas, scripts, brand development.

Grammarly
Not a good fit
LanguageTool
Not a good fit
Best choice: Neither
10

Productivity, Automation & Personal Life

AI agents, workflows, scheduling, meetings, organization, shopping, travel, personal finance.

Grammarly
Not a good fit
LanguageTool
Not a good fit
Best choice: Neither
Pick Grammarly if

Works inside the apps you already write in rather than a separate window, which is why it actually gets used.

San Francisco, US
Works inside the apps you already write in rather than a separate window, which is why it actually gets used.
You would rather not configure anything first
It is built for writing, communication & language
Grammar, tone and clarity in place.
Pick LanguageTool if

Strong across more than 30 languages rather than English alone, and it can be self-hosted, which almost nothing else in this category offers.

by Learneo
Strong across more than 30 languages rather than English alone, and it can be self-hosted, which almost nothing else in this category offers.
You want the cheaper paid plan, $24.9 against $30
The material cannot leave your own machine
You are among researchers

Pricing, simplified

The plans people actually compare, read from each vendor’s own page.

PricingSimple, up-to-date plan overview.
Grammarlyby Grammarly
LanguageToolby Learneo
Free version
Grammarly
Yes — Free plan availableWriting without spelling and grammar mistakes, tone detection, and 100 AI prompts for
LanguageTool
Yes — Free plan availableFree tier covering basic grammar and spelling
Individual plans
Grammarly
Pro $30 / month$12 / month (annual)
LanguageTool
Premium $24.90 / month$16.63 / month (quarterly)$5.83 / month (annual)
Teams $11.07 / month$11.07 / month (annual)
Business plans
GrammarlyNot sold to teams
LanguageToolNot sold to teams
Enterprise
Grammarly
Custom pricing
LanguageToolNot published
View full details
GrammarlyView Grammarly pricing
LanguageToolView LanguageTool pricing
Interactive

Tell us what you use AI for

Pick your main job and the verdict below changes to match. Every answer is on the page already, so this works as a reader, not a lookup.

The verdict for that job
LanguageTool
Close call. Both cover writing, communication & language at the same level; both have a free plan you can start on; LanguageTool is cheaper to start paying for, $24.9 against $30.
9 rows compared

Frequently asked questions

Is Grammarly or LanguageTool better?

LanguageTool is ahead on 2 of the 9 rows compared, 1 of them about how well it does the job itself. It is a single row of daylight, so read Grammarly’s column before deciding. both have a free plan you can start on; LanguageTool is cheaper to start paying for, $24.9 against $30. Grammarly: Works inside the apps you already write in rather than a separate window, which is why it actually gets used. Grammar, tone and clarity in place. LanguageTool: Strong across more than 30 languages rather than English alone, and it can be self-hosted, which almost nothing else in this category offers.

Is Grammarly or LanguageTool cheaper?

LanguageTool — paid plans start at $24.9 a month against $30 a month.

Do Grammarly and LanguageTool both have free plans?

Yes. Grammarly: Free tier: writing without spelling and grammar mistakes, tone detection, and 100 AI prompts for generating text. LanguageTool: Free tier covering basic grammar and spelling.

What should I watch out for?

Grammarly: Better at fixing than composing. It smooths writing toward a neutral register, which is not always what you want. The free tier caps generation at 100 AI prompts, and the enterprise tier now arrives through Superhuman Go rather than as Grammarly itself. LanguageTool: Owned by the same company as QuillBot since 2023. Month to month costs more than four times the annual rate, and there are four payment intervals to pick between, so the interval matters more than the tier. Prices are quoted inclusive of VAT.

Read more

Grammarly

What it is for, who makes it, what it costs and what to use instead.

LanguageTool

What it is for, who makes it, what it costs and what to use instead.

Best AI for Writing

Emails, reports, essays, editing, summarizing, translation, presentations.

How we compare AI tools
Every row is generated from the same record the rest of the site is built on, so this page cannot drift from what we say elsewhere. We separate winner, tie and depends rather than forcing each category into a ranking, and we drop rows where both sides say the same thing. A pick is only called an overall pick when it leads on rows about how well the tool does the job; a lead that rests on price or audience alone is labelled as one. Nothing here is a hands-on test — how we know lists the source and date behind every deciding row.