dkorunic/betteralign

Health v2 · maintenance only

Adoption not part of the score

1078 stars · 22 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

betteralign is a Go static analysis tool that detects structs whose fields could be reordered to reduce memory usage, and can optionally rewrite them safely. It is a fork of the official fieldalignment analyzer with improvements like comment preservation, atomic writes, and safer skip/ignore controls.

Use cases

• reduce memory usage of Go structs by reordering fields
• find structs with suboptimal field alignment in a Go codebase
• automatically fix struct field ordering without losing comments
• detect positional composite literals that would break if fields are reordered
• run fieldalignment analysis in CI with opt-in or opt-out annotations

When to choose

• you want memory savings from struct field reordering in Go
• you need comment-preserving rewrites that the upstream fieldalignment tool lacks
• you have generic structs or positional literals that crash or break upstream tooling

When to avoid

• your project is not written in Go
• you only care about anonymous structs, which are deliberately skipped
• you need atomic rewrite guarantees on Windows

Facets

cli-tool · maturity active

linter formatter developer-tools developer-tools performance programming-languages go cli windows struct-alignment memory-optimization static-analysis code-rewriting golang-analyzer linux macos

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