SCREAMING_SNAKE_CASE – Definition and Usage Guide
Published 2026-03-17 · convertcase.in
SCREAMING_SNAKE_CASE is all-uppercase snake_case. It is the convention for constants and environment variables across many programming languages.
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1Examples
MAX_RETRY_COUNT, API_BASE_URL, DATABASE_HOST, NODE_ENV
2Where It's Used
Constants in Python, C, C++, Java, JavaScript/TypeScript. Environment variables (.env files). Configuration keys in most languages.
3How to Convert
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Frequently Asked Questions
Is SCREAMING_SNAKE_CASE the same as CONSTANT_CASE?
Yes — SCREAMING_SNAKE_CASE, CONSTANT_CASE, and MACRO_CASE all refer to the same convention.