Brandwave

Insomnia vs Stoplight:Which is more popular?

In September 2026, Stoplight had more branded searches than Insomnia among API development tools worldwide. Stoplight had about 210 branded searches, while Insomnia had 10. Stoplight made up 0.14% of all API development tool searches we track, and Insomnia accounted for <0.01%. When we asked ChatGPT and Google AI Overviews about API development tools, Insomnia appeared in all five answers and Stoplight in two. Insomnia was mentioned before Stoplight in every answer.

Among API development tools worldwide in September 2026

Who do people search for more?

Stoplight, about 21 searches for every 1 for Insomnia

Stoplight 210 searchesInsomnia 10 searches

Who does AI mention more?

Insomnia, mentioned in every answer we collected

Insomnia in 5 of 5Stoplight in 2 of 5

Who does AI recommend more?

Insomnia, named ahead of Stoplight in every answer

Insomnia first in 5Stoplight never first

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Top API development tools in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Insomnia appeared in all five answers. Stoplight was mentioned in two out of five: in one of the three ChatGPT answers and in one of the two Google AI Overviews. Insomnia was listed before Stoplight in every answer.

Most recommended by AI

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

  1. Postman1st
  2. Insomnia2nd
  3. Bruno3rd
  4. Swagger4th
  5. Stoplight5th
  6. Hoppscotch6th
  7. k67th
  8. SoapUI8th

Mentioned by AI

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

  • Postman5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Insomnia5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Bruno4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Swagger3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • k62 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • SoapUI2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Hoppscotch2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Stoplight2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers

See every answer about API development 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 Insomnia or Stoplight more popular in search?

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

Insomnia and Stoplight among API development tools worldwide, by month

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

View monthly share of searches table
Monthk6SoapUIPostmanSwaggerHoppscotchStoplightBrunoInsomnia
Oct 202541.5%28.7%16%13.2%0.23%0.28%0.02%0.01%
Nov 202545.7%25.9%15%12.9%0.2%0.25%0.02%0.01%
Dec 202545%25.4%14.8%14.3%0.25%0.25%0.02%0.02%
Jan 202649.3%22.8%13.9%13.4%0.27%0.27%0.03%<0.01%
Feb 202648.2%22.3%15.8%13%0.26%0.26%0.03%0.02%
Mar 202645.2%25.3%14.7%14.2%0.37%0.24%0.02%0.02%
Apr 202648.2%22.3%15.8%13%0.32%0.22%0.02%0.01%
May 202650.2%23.2%13.5%12.6%0.34%0.18%0.03%<0.01%
Jun 202650.2%22.9%14%12.4%0.27%0.18%0.03%<0.01%
Jul 202652.4%19.6%14.6%13%0.28%0.19%0.02%<0.01%
Aug 202653.6%20%14.2%11.8%0.29%0.16%0.03%<0.01%
Sep 202659.1%18.3%11.8%10.3%0.26%0.14%0.02%<0.01%

How has the Insomnia and Stoplight comparison changed over the last 12 months?

3 findings
  • Stoplight was ahead of Insomnia in every measured month of the 12 months ending September 2026.
  • Across the 12 months ending September 2026, Insomnia’s share of searches among API development tools worldwide moved from 0.01% to <0.01%, and its estimated monthly branded searches moved from 20 to 10.
  • Across the 12 months ending September 2026, Stoplight’s share of searches among API development tools worldwide moved from 0.28% to 0.14%, and its estimated monthly branded searches moved from 480 to 210.

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

2 changes
  1. Estimated monthly branded searches for Stoplight worldwide fell 56.3% over 12 measured months, from 480 to 210 in September 2026.

  2. Estimated monthly branded searches for Insomnia worldwide fell 50% over 12 measured months, from 20 to 10 in September 2026.

How are branded searches counted?

2 search terms

Brandwave collects information about searches that people make online using Insomnia’s and Stoplight’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.

Insomnia

1 branded search term

  • api testing insomnia

Stoplight

1 branded search term

  • stoplight api

How the Brand Demand Index is measured

Other head-to-heads among API development tools

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