ESLint vs Ruff:Which is more popular?
In September 2026, ESLint had more branded searches than Ruff among static analysis tools worldwide. ESLint had about 27,100 branded searches, while Ruff had 7,900. ESLint made up 11.2% of all static analysis tool searches we track, and Ruff accounted for 3.3%. When we asked ChatGPT and Google AI Overviews about static analysis tools, ESLint appeared in four of the five answers and Ruff in two. ESLint was mentioned before Ruff in three out of four answers that named either.
Who do people search for more?
ESLint, about 3 searches for every 1 for Ruff
Who does AI mention more?
ESLint, mentioned in 4 of 5 answers, Ruff in 2
Who does AI recommend more?
ESLint, named ahead of Ruff in 3 of 4 answers
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Top static analysis tools in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, ESLint was mentioned in four out of five: in all three ChatGPT answers and in one of the two Google AI Overviews. Ruff was mentioned in two out of five: in two of the three ChatGPT answers, but not in either of the two Google AI Overviews. ESLint was listed before Ruff in three out of four answers that named either.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
SonarQube5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Semgrep5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
CodeQL5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers- ESLint4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Snyk Code3 of 5Named in 1 of 3 ChatGPT answersNamed in 2 of 2 Google answers- Coverity2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Ruff2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- SpotBugs2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Checkmarx1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Veracode1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
See every answer about static analysis tools
5 answers
Asked ChatGPT
“Which static analysis tool should I use?”
Asked ChatGPT
“What are the best static analysis tools?”
Asked ChatGPT
“What's the best static analysis tool for source code quality?”
Searched Google, AI Overview
“static analysis tools”
Searched Google, AI Overview
“code scanning tool”
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 21, 2026.
Is ESLint or Ruff more popular in search?
This chart shows how often people search Google for ESLint and Ruff by name. Each line represents a brand's share of searches for all 14 static analysis tools we track, month by month, from English-language searches worldwide.
Share of searches by month for ESLint, Ruff. The figures are in the table below the chart.
View monthly share of searches table
| Month | SonarQube | Semgrep | ESLint | Checkmarx | CodeQL | Veracode | Coverity | Ruff | Codacy | SpotBugs | Snyk Code | GitHub CodeQL | Code Climate | Black Duck Coverity |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 49.5% | 8.1% | 14.8% | 6.7% | 4.4% | 5.4% | 3% | 3.1% | 2% | 0.87% | 0.74% | 0.39% | 0.87% | 0.12% |
| Nov 2025 | 48.4% | 8% | 14.5% | 6.5% | 5.3% | 5.3% | 3.6% | 3% | 2.4% | 0.86% | 0.7% | 0.47% | 0.86% | 0.09% |
| Dec 2025 | 50.1% | 8.2% | 15% | 6.7% | 4.5% | 4.5% | 3% | 3% | 2% | 0.89% | 0.72% | 0.48% | 0.71% | 0.1% |
| Jan 2026 | 47.5% | 9.5% | 14.3% | 6.4% | 5.2% | 5.2% | 3.5% | 3.5% | 1.9% | 0.85% | 0.68% | 0.46% | 0.85% | 0.11% |
| Feb 2026 | 46.6% | 9.4% | 17.1% | 6.2% | 5.1% | 5.1% | 2.8% | 2.9% | 1.9% | 0.66% | 0.84% | 0.45% | 0.83% | 0.11% |
| Mar 2026 | 49.8% | 10% | 12.2% | 8.2% | 4.5% | 4.5% | 3% | 3% | 1.6% | 0.73% | 1.1% | 0.48% | 0.73% | 0.12% |
| Apr 2026 | 45.8% | 11.2% | 11.2% | 11.2% | 5% | 5% | 2.8% | 2.8% | 1.8% | 0.82% | 1% | 0.44% | 0.65% | 0.11% |
| May 2026 | 48.4% | 11.9% | 11.9% | 8% | 5.3% | 5.3% | 2.4% | 2.9% | 1.6% | 0.68% | 0.69% | 0.47% | 0.57% | 0.09% |
| Jun 2026 | 49.9% | 12.2% | 10% | 6.7% | 5.5% | 5.5% | 3% | 3% | 1.6% | 0.7% | 0.71% | 0.48% | 0.59% | 0.12% |
| Jul 2026 | 44.8% | 13.5% | 11% | 7.4% | 6% | 6% | 3.3% | 3.3% | 1.8% | 0.77% | 0.79% | 0.53% | 0.53% | 0.16% |
| Aug 2026 | 47.7% | 11.7% | 11.7% | 7.8% | 5.2% | 5.2% | 2.9% | 3.6% | 1.6% | 0.69% | 0.71% | 0.56% | 0.43% | 0.11% |
| Sep 2026 | 45.3% | 13.6% | 11.2% | 7.5% | 6.1% | 5% | 4.1% | 3.3% | 1.5% | 0.78% | 0.67% | 0.54% | 0.41% | 0.13% |
How has the ESLint and Ruff comparison changed over the last 12 months?
3 findings
- ESLint was ahead of Ruff in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, ESLint’s share of searches among static analysis tools worldwide moved from 14.8% to 11.2%, and its estimated monthly branded searches moved from 49.5K to 27.1K.
- Across the 12 months ending September 2026, Ruff’s share of searches among static analysis tools worldwide moved from 3.1% to 3.3%, and its estimated monthly branded searches moved from 10.5K to 7.9K.
How did search popularity change for static analysis tools worldwide in September 2026?
4 changes
In September 2026, Semgrep overtook ESLint to rank 2nd among static analysis tools worldwide, with 13.6% of the searches.
In September 2026, Coverity overtook Ruff to rank 7th among static analysis tools worldwide, with 4.1% of the searches.
In September 2026, ESLint lost share of searches among static analysis tools worldwide, from 11.7% to 11.2%.
Estimated monthly branded searches for Ruff worldwide fell 24.8% over 12 measured months, from 10.5K to 7.9K in September 2026.
How are branded searches counted?
3 search terms
Brandwave collects information about searches that people make online using ESLint’s and Ruff’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 static analysis tools
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