Swift
Combine filters →1 project is written in Swift, listed alphabetically. It is Vapor. All of them web frameworks, most of them open source. 38 records do not record this field, and cannot appear here either way. Counts only projects with momentum; the full list has the rest.
What is the best web software written in Swift?
No idea. We list software, we don't rate it. Open the records that look close and compare them side by side.