Brandwave

Microsoft 365 vs ONLYOFFICE:Which is more popular?

In September 2026, Microsoft 365 had more branded searches than ONLYOFFICE among office suites worldwide. Microsoft 365 had about 7.5 million branded searches, while ONLYOFFICE had 301,000. Microsoft 365 made up 63.2% of all office suite searches we track, and ONLYOFFICE accounted for 2.5%. When we asked ChatGPT and Google AI Overviews about office suites, Microsoft 365 appeared in all five answers and ONLYOFFICE in one. Microsoft 365 was mentioned before ONLYOFFICE in every answer.

Among office suites worldwide in September 2026

Who do people search for more?

Microsoft 365, about 25 searches for every 1 for ONLYOFFICE

Microsoft 365 7.5M searchesONLYOFFICE 301K searches

Who does AI mention more?

Microsoft 365, mentioned in every answer we collected

Microsoft 365 in 5 of 5ONLYOFFICE in 1 of 5

Who does AI recommend more?

Microsoft 365, named ahead of ONLYOFFICE in every answer

Microsoft 365 first in 4ONLYOFFICE never first

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Top office suites in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Microsoft 365 appeared in all five answers. ONLYOFFICE was mentioned in one out of five: in one of the three ChatGPT answers, but not in either of the two Google AI Overviews. Microsoft 365 was listed before ONLYOFFICE in every answer.

Most recommended by AI

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

  1. Microsoft 3651st
  2. Google Workspace2nd
  3. LibreOffice3rd
  4. iWork4th
  5. ONLYOFFICE5th
  6. Zoho Workplace6th
  7. WPS Office–

Mentioned by AI

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

  • Microsoft 3655 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Google Workspace4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • LibreOffice4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • iWork3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • ONLYOFFICE1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Zoho Workplace1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • WPS Office0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers

See every answer about office suites

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 Microsoft 365 or ONLYOFFICE more popular in search?

This chart shows how often people search Google for Microsoft 365 and ONLYOFFICE by name. Each line represents a brand's share of searches for all seven office suites we track, month by month, from English-language searches worldwide.

Microsoft 365 and ONLYOFFICE among office suites worldwide, by month

Share of searches by month for Microsoft 365, ONLYOFFICE. The figures are in the table below the chart.

View monthly share of searches table
MonthMicrosoft 365Google WorkspaceLibreOfficeWPS OfficeONLYOFFICEZoho WorkplaceiWork
Oct 202569.8%11.4%11.4%5.1%1.5%0.46%0.21%
Nov 202569.9%11.5%11.5%5.1%1.5%0.25%0.21%
Dec 202567.9%13.6%11.1%5%1.8%0.3%0.25%
Jan 202663.4%15.5%12.7%5.7%2.1%0.34%0.28%
Feb 202664.1%15.7%12.9%4.7%2.1%0.28%0.28%
Mar 202663.4%15.5%12.7%5.7%2.1%0.34%0.23%
Apr 202664.7%15.8%10.5%5.8%2.6%0.29%0.23%
May 202665%15.9%10.6%5.8%2.1%0.29%0.19%
Jun 202660.3%18%12%6.6%2.4%0.33%0.22%
Jul 202655.4%20.3%13.5%7.5%2.7%0.45%0.25%
Aug 202658.7%17.6%14.4%6.5%2.4%0.32%0.21%
Sep 202663.2%15.5%12.7%5.7%2.5%0.28%0.23%

How has the Microsoft 365 and ONLYOFFICE comparison changed over the last 12 months?

3 findings
  • Microsoft 365 was ahead of ONLYOFFICE in every measured month of the 12 months ending September 2026.
  • Across the 12 months ending September 2026, Microsoft 365’s share of searches among office suites worldwide moved from 69.8% to 63.2%, and its estimated monthly branded searches moved from 9.1M to 7.5M.
  • Across the 12 months ending September 2026, ONLYOFFICE’s share of searches among office suites worldwide moved from 1.5% to 2.5%, and its estimated monthly branded searches moved from 201K to 301K.

How did search popularity change for office suites worldwide in September 2026?

2 changes

  1. In September 2026, Microsoft 365 gained share of searches among office suites worldwide, from 58.7% to 63.2%.

  2. Estimated monthly branded searches for ONLYOFFICE worldwide rose 49.8% over 12 measured months, from 201K to 301K in September 2026.

How are branded searches counted?

2 search terms

Brandwave collects information about searches that people make online using Microsoft 365’s and ONLYOFFICE’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.

Microsoft 365

1 branded search term

  • microsoft 365

ONLYOFFICE

1 branded search term

  • onlyoffice

How the Brand Demand Index is measured

Other head-to-heads among office suites

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