This suggests that spaces are more popular. https://hoffa.medium.com/400-000-github-repositories-1-billion-files-14-terabytes-of-code-spaces-or-tabs-7cfe0b5dd7

This suggests that spaces are more popular. https://hoffa.medium.com/400-000-github-repositories-1-billion-files-14-terabytes-of-code-spaces-or-tabs-7cfe0b5dd7fd https://hoffa.medium.com/400-000-github-repositories-1-billi... The only exceptions being C, where tabs are slightly more common, and Go, where tabs are the official style.