Brandwave

LanguageTool vs QuillBot:Which is more popular?

In September 2026, QuillBot had more branded searches than LanguageTool among writing assistants worldwide. QuillBot had about 5 million branded searches, while LanguageTool had 302,000. QuillBot made up 45.4% of all writing assistant searches we track, and LanguageTool accounted for 2.7%. When we asked ChatGPT and Google AI Overviews about writing assistants, QuillBot appeared in two of the five answers and LanguageTool in none.

Among writing assistants worldwide in September 2026

Who do people search for more?

QuillBot, about 17 searches for every 1 for LanguageTool

QuillBot 5M searchesLanguageTool 302K searches

Who does AI mention more?

QuillBot, mentioned in 2 of 5 answers, LanguageTool in 0

QuillBot in 2 of 5LanguageTool in 0 of 5

Who does AI recommend more?

QuillBot, the only one of the two named

QuillBot first in 2LanguageTool never named

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Top writing assistants in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, QuillBot was mentioned in two out of five: not in any of the three ChatGPT answers, but in both Google AI Overviews. LanguageTool did not appear in any of the five answers.

Most recommended by AI

Brands get a higher ranking if they are mentioned earlier in the answers.

  1. Grammarly1st
  2. QuillBot2nd
  3. ProWritingAid3rd
  4. Scribbr4th
  5. LanguageTool–
  6. Ginger–
  7. Wordtune–
  8. Hemingway Editor–

Mentioned by AI

Each dot is one answer, filled in when that answer mentions the brand.

  • Grammarly5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • ProWritingAid3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • QuillBot2 of 5Named in 0 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Scribbr2 of 5Named in 0 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • LanguageTool0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Ginger0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Wordtune0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Hemingway Editor0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers

See every answer about writing assistants

5 answers

Not named in any answer:

Brands are shown in the order each answer named them. The survey took place in the United States on October 19, 2026.

Is LanguageTool or QuillBot more popular in search?

This chart shows how often people search Google for LanguageTool and QuillBot by name. Each line represents a brand's share of searches for all eight writing assistants we track, month by month, from English-language searches worldwide.

LanguageTool and QuillBot among writing assistants worldwide, by month

Share of searches by month for QuillBot, LanguageTool. The figures are in the table below the chart.

View monthly share of searches table
MonthGrammarlyQuillBotScribbrLanguageToolGingerProWritingAidWordtuneHemingway Editor
Oct 202541%50%5.5%2%0.42%0.33%0.5%0.27%
Nov 202536.6%54.6%4.9%2.2%0.46%0.3%0.54%0.3%
Dec 202540.6%49.7%5.5%2.4%0.51%0.33%0.6%0.33%
Jan 202640.4%49.4%5.4%3%0.6%0.33%0.49%0.4%
Feb 202645.4%45.3%5%2.7%0.45%0.3%0.45%0.37%
Mar 202640.8%49.8%5.5%2.5%0.42%0.33%0.4%0.33%
Apr 202645.4%45.4%5%2.7%0.45%0.3%0.45%0.3%
May 202640.8%49.8%5.5%2.5%0.49%0.33%0.33%0.33%
Jun 202636.3%53.9%4.9%3.3%0.54%0.36%0.44%0.36%
Jul 202641.2%50.2%3.7%3%0.61%0.41%0.41%0.41%
Aug 202641.6%50.7%3.7%2.5%0.5%0.34%0.28%0.34%
Sep 202645.5%45.4%5%2.7%0.44%0.31%0.3%0.3%

How has the LanguageTool and QuillBot comparison changed over the last 12 months?

3 findings
  • QuillBot was ahead of LanguageTool in every measured month of the 12 months ending September 2026.
  • Across the 12 months ending September 2026, LanguageTool’s share of searches among writing assistants worldwide moved from 2% to 2.7%, and its estimated monthly branded searches moved from 369K to 302K.
  • Across the 12 months ending September 2026, QuillBot’s share of searches among writing assistants worldwide moved from 50% to 45.4%, and its estimated monthly branded searches moved from 9.1M to 5M.

How did search popularity change for writing assistants worldwide in September 2026?

3 changes

  1. In September 2026, Grammarly overtook QuillBot to become the leader among writing assistants worldwide, with 45.5% of the searches.

  2. In September 2026, QuillBot lost share of searches among writing assistants worldwide, from 50.7% to 45.4%.

  3. Estimated monthly branded searches for LanguageTool worldwide fell 18.2% over 12 measured months, from 369K to 302K in September 2026.

How are branded searches counted?

5 search terms

Brandwave collects information about searches that people make online using LanguageTool’s and QuillBot’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.

LanguageTool

4 branded search terms

  • grammar languagetool
  • languagetool
  • languagetool app
  • languagetool grammar

QuillBot

1 branded search term

  • quillbot

How the Brand Demand Index is measured

Other head-to-heads among writing assistants

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