Go mod Release check — check go mod before tagging

Checks go.mod before you tag: missing /vN major version suffix, go line older than the two supported Go releases, toolchain below go, local replace, require path/version mismatch. Each finding has the fix line. Runs entirely in your browser — nothing is uploaded.

as of

Free here: Maps every go.mod line that breaks go get for your users (module path, go line, toolchain, replace, require) and prints the exact replacement line. Full version: once · one licence key per person or team seat. One developer hour at the US median wage is $65.38 (BLS OEWS, May 2025).

Same engine as the VS Code extension, byte for byte.