Which tech stack is most popular?
Asked "Which tech stack is most popular?", ChatGPT, Copilot, Gemini, Google AI Mode and Perplexity named 40 distinct tools across 5 answers on September 9, 2026, and 21 of them in two or more answers, and all 5 engines agreed on React, the only tool every engine named.
Measured acrossChatGPTCopilotGeminiGoogle AI ModePerplexity
21 of 40 names confirmed · named in 2 or more of 5 answers · asked September 9, 2026 · 5 engines
The most popular tech stack varies depending on the specific use case, but JavaScript/TypeScript ecosystems, particularly React and Next.js, are widely used for web development, while Python is popular for AI and data-driven applications.
- 1Reactnamed in 5 of 5 answers
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- 2Djangonamed in 5 of 5 answers
- 3TypeScriptnamed in 4 of 5 answers
- 4Next.jsnamed in 4 of 5 answers
- 5Node.jsnamed in 4 of 5 answers
- 6Spring Bootnamed in 4 of 5 answers
- 7Pythonnamed in 4 of 5 answers
- 8MongoDBnamed in 3 of 5 answers
- 9MySQLnamed in 3 of 5 answers
- 10PostgreSQLnamed in 3 of 5 answers
- 11FastAPInamed in 3 of 5 answers
- 12C#named in 3 of 5 answers
- 13MERN Stacknamed in 2 of 5 answers
- 14Expressnamed in 2 of 5 answers
- 15Tailwindnamed in 2 of 5 answers
- 16Express.jsnamed in 2 of 5 answers
- 17Javanamed in 2 of 5 answers
- 18.NETnamed in 2 of 5 answers
- 19AWSnamed in 2 of 5 answers
- 20Azurenamed in 2 of 5 answers
- 21Google Cloudnamed in 2 of 5 answers
- 22JavaScriptnamed in 1 of 5 answersone answer
- 23MEAN stacknamed in 1 of 5 answersone answer
- 24Postgresnamed in 1 of 5 answersone answer
- 25T3 Stacknamed in 1 of 5 answersone answer
LOCKED
The full measurement
- The position each of the 5 engines gave all 40 names.
- How many of the 5 answers named each of them.
- 83 sampled observations behind this ranking, and where the engines disagree.
- Fan-out — the query each engine actually searched.
- Every citation, and the sources nobody cited.