Brandwave

ReadMe vs SwaggerHub:Which is more popular?

In September 2026, SwaggerHub had more branded searches than ReadMe among API documentation tools worldwide. SwaggerHub had about 1,900 branded searches, while ReadMe had 800. SwaggerHub made up 2.2% of all API documentation tool searches we track, and ReadMe accounted for 0.95%. When we asked ChatGPT and Google AI Overviews about API documentation tools, ReadMe appeared in all five answers and SwaggerHub in two. ReadMe was mentioned before SwaggerHub in three out of five answers.

Among API documentation tools worldwide in September 2026

Who do people search for more?

SwaggerHub, about 2 searches for every 1 for ReadMe

SwaggerHub 1.9K searchesReadMe 800 searches

Who does AI mention more?

ReadMe, mentioned in every answer we collected

ReadMe in 5 of 5SwaggerHub in 2 of 5

Who does AI recommend more?

ReadMe, named ahead of SwaggerHub in 3 of 5 answers

ReadMe first in 3SwaggerHub first in 2

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Top API documentation tools in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, ReadMe appeared in all five answers. SwaggerHub was mentioned in two out of five: not in any of the three ChatGPT answers, but in both Google AI Overviews. ReadMe was listed before SwaggerHub in three out of five answers.

Most recommended by AI

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

  1. Mintlify1st
  2. ReadMe2nd
  3. Redocly3rd
  4. Scalar4th
  5. Swagger5th
  6. SwaggerHub6th
  7. Postman7th
  8. Stoplight8th
  9. Docusaurus9th

Mentioned by AI

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

  • Mintlify5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Swagger5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Redocly5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Scalar5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • ReadMe5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Docusaurus3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Stoplight3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Postman2 of 5Named in 0 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • SwaggerHub2 of 5Named in 0 of 3 ChatGPT answersNamed in 2 of 2 Google answers

See every answer about API documentation tools

5 answers

Brands are shown in the order each answer named them. The survey took place in the United States on October 20, 2026.

Is ReadMe or SwaggerHub more popular in search?

This chart shows how often people search Google for ReadMe and SwaggerHub by name. Each line represents a brand's share of searches for all nine API documentation tools we track, month by month, from English-language searches worldwide.

ReadMe and SwaggerHub among API documentation tools worldwide, by month

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

View monthly share of searches table
MonthDocusaurusMintlifyPostmanSwaggerRedoclyScalarSwaggerHubReadMeStoplight
Oct 202530%20.1%20.4%16.9%6%1.8%3.3%0.93%0.58%
Nov 202533.3%18.3%19.3%16.6%5.5%2%3.6%0.86%0.53%
Dec 202534.1%22.9%16.2%15.7%5.6%1.8%2.4%0.84%0.48%
Jan 202633.2%22.3%16.6%15.9%5.4%2.1%3%0.89%0.55%
Feb 202625.2%20.8%21.9%18%6.2%2.9%3.4%1.1%0.66%
Mar 202626.7%22%19%18.4%6.6%2.9%2.9%0.95%0.6%
Apr 202626.8%27%19.1%15.7%5.4%2.4%2.4%0.83%0.5%
May 202627%22.3%19.2%17.9%6.6%3%2.4%0.92%0.61%
Jun 202632.6%26.8%16.3%14.4%4.4%2.5%1.9%0.76%0.43%
Jul 202625.9%26.1%19.3%17.1%5.2%2.9%2.3%0.78%0.42%
Aug 202631%25.5%18%14.9%5.1%2.8%1.8%0.62%0.3%
Sep 202626.2%21.6%20.7%18%6.4%3.6%2.2%0.95%0.39%

How has the ReadMe and SwaggerHub comparison changed over the last 12 months?

3 findings
  • SwaggerHub was ahead of ReadMe in every measured month of the 12 months ending September 2026.
  • Across the 12 months ending September 2026, ReadMe’s share of searches among API documentation tools worldwide moved from 0.93% to 0.95%, and its estimated monthly branded searches moved from 1.3K to 800.
  • Across the 12 months ending September 2026, SwaggerHub’s share of searches among API documentation tools worldwide moved from 3.3% to 2.2%, and its estimated monthly branded searches moved from 4.4K to 1.9K.

How did search popularity change for API documentation tools worldwide in September 2026?

2 changes

  1. Estimated monthly branded searches for SwaggerHub worldwide fell 56.8% over 12 measured months, from 4.4K to 1.9K in September 2026.

  2. Estimated monthly branded searches for ReadMe worldwide fell 36.5% over 12 measured months, from 1.3K to 800 in September 2026.

How are branded searches counted?

6 search terms

Brandwave collects information about searches that people make online using ReadMe’s and SwaggerHub’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.

ReadMe

5 branded search terms

  • api documentation readme
  • readme api
  • readme api documentation
  • readme com
  • readme documentation

SwaggerHub

1 branded search term

  • swaggerhub

How the Brand Demand Index is measured

Other head-to-heads among API documentation tools

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