flog

flog is a minimal, formatted, pretty logging package for Go.

It's optimized for human readability and CLIs.

• Log levels color-code the timestamp
• Log level doesn't change the width of the prefix

slog is recommended for robust logging.

Install

go get github.com/coder/flog

Usage

flog.Infof("hello %.3f", 1/3.0)
flog.Successf("finished that")
flog.Errorf("oops")

log := flog.New(os.Stderr).WithPrefix("user %v: ", 500)

log.Errorf("didn't work out")

Output