GitBook vs ReadMe:Which is more popular?
In September 2026, GitBook had more branded searches than ReadMe among developer documentation platforms worldwide. GitBook had about 3,600 branded searches, while ReadMe had 630. GitBook made up 7.1% of all developer documentation platform searches we track, and ReadMe accounted for 1.2%. When we asked ChatGPT and Google AI Overviews about developer documentation platforms, both GitBook and ReadMe appeared in all five answers. ReadMe was mentioned before GitBook in four out of five answers.
Who do people search for more?
GitBook, about 6 searches for every 1 for ReadMe
Who does AI mention more?
Both are mentioned in every answer we collected.
Who does AI recommend more?
ReadMe, named ahead of GitBook in 4 of 5 answers
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Top developer documentation platforms in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, both GitBook and ReadMe showed up in all five answers. ReadMe was listed before GitBook in four of them.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Mintlify1st- ReadMe2nd
- GitBook3rd
Docusaurus4th
Fern5th
Read the Docs–
Slate–
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
- GitBook5 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
- Docusaurus4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Fern2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Read the Docs0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Slate0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about developer documentation platforms
5 answers
Asked ChatGPT
“Which developer documentation platform should I use?”
Asked ChatGPT
“What are the best developer documentation platforms?”
Asked ChatGPT
“What's the best developer documentation platform for a dev team?”
Searched Google, AI Overview
“api documentation tool”
Searched Google, AI Overview
“developer documentation platforms”
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 20, 2026.
Is GitBook or ReadMe more popular in search?
This chart shows how often people search Google for GitBook and ReadMe by name. Each line represents a brand's share of searches for all seven developer documentation platforms we track, month by month, from English-language searches worldwide.
Share of searches by month for GitBook, ReadMe. The figures are in the table below the chart.
View monthly share of searches table
| Month | Docusaurus | Mintlify | Read the Docs | GitBook | ReadMe | Fern | Slate |
|---|---|---|---|---|---|---|---|
| Oct 2025 | 48.9% | 32.7% | 9.8% | 6.5% | 1.3% | 0.59% | 0.17% |
| Nov 2025 | 52.1% | 28.6% | 10.4% | 6.9% | 1.1% | 0.59% | 0.22% |
| Dec 2025 | 49.6% | 33.2% | 9.9% | 5.4% | 1% | 0.69% | 0.13% |
| Jan 2026 | 47.8% | 32% | 11.7% | 6.4% | 1.1% | 0.82% | 0.17% |
| Feb 2026 | 42.6% | 34.9% | 12.7% | 6.9% | 1.6% | 0.94% | 0.17% |
| Mar 2026 | 43.9% | 35.9% | 10.7% | 7.2% | 1.3% | 0.8% | 0.19% |
| Apr 2026 | 42.1% | 42.1% | 8.4% | 5.6% | 1.1% | 0.67% | 0.11% |
| May 2026 | 43.9% | 36% | 10.7% | 7.1% | 1.2% | 0.94% | 0.15% |
| Jun 2026 | 47.8% | 39% | 6.4% | 5.2% | 0.94% | 0.61% | 0.11% |
| Jul 2026 | 41.6% | 41.6% | 8.3% | 6.8% | 1% | 0.64% | 0.14% |
| Aug 2026 | 46.6% | 38.1% | 7.6% | 6.2% | 0.73% | 0.66% | 0.1% |
| Sep 2026 | 44% | 35.9% | 10.7% | 7.1% | 1.2% | 0.85% | 0.14% |
How has the GitBook and ReadMe comparison changed over the last 12 months?
3 findings
- GitBook was ahead of ReadMe in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, GitBook’s share of searches among developer documentation platforms worldwide moved from 6.5% to 7.1%, and its estimated monthly branded searches moved from 5.4K to 3.6K.
- Across the 12 months ending September 2026, ReadMe’s share of searches among developer documentation platforms worldwide moved from 1.3% to 1.2%, and its estimated monthly branded searches moved from 1.1K to 630.
How did search popularity change for developer documentation platforms worldwide in September 2026?
2 changes
In September 2026, GitBook gained share of searches among developer documentation platforms worldwide, from 6.2% to 7.1%.
In September 2026, ReadMe gained share of searches among developer documentation platforms worldwide, from 0.73% to 1.2%.
How are branded searches counted?
5 search terms
Brandwave collects information about searches that people make online using GitBook’s and ReadMe’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.
Other head-to-heads among developer documentation platforms
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