Radish, Keep Going!

Jan 20, 2025 · Backend Development

How to Slash Go Binary Size by Up to 80%: Compiler Flags & UPX

Discover practical techniques to dramatically reduce the size of Go executables—starting with stripping debug symbols using ldflags, then applying UPX compression with optimal settings, and combining both methods to shrink a 6.5 MB binary down to around 1.4 MB, saving up to 80% space.