gofumpt: Enforce a stricter format than gofmt, while being backwards compatible. That is, gofumpt is happy with a subset of the formats that gofmt is happy with.
The tool is a fork of gofmt as of Go 1.21, and requires Go 1.20 or later. It can be used as a drop-in replacement to format your Go code, and running gofmt after gofumpt should produce no changes. For example:
gofumpt -l -w .