# google/bloaty

Bloaty: a size profiler for binaries

Repository: https://github.com/google/bloaty
Canonical: https://ross.abutalabs.com/products/bloaty
Language: C++
License: Apache-2.0
License Family: permissive
Last push: 2026-05-31T16:14:41+00:00

## Health v2 (maintenance only)
Score: 61/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 85, release rhythm 8, longevity 100
- inputs: {"age_days": 3586, "days_push": 94, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 5536, forks 378 (observed 2026-08-28T04:09:22.061348+00:00)

## What it is
Bloaty is a size profiler for binaries that shows what is taking up space inside an executable. It uses custom ELF, DWARF, and Mach-O parsers to attribute every byte of a binary to the symbol or compile unit that produced it.

## Use cases
- find out what makes my binary big
- profile binary size by compile unit or symbol
- track binary size growth in CI with size diffs
- analyze which libraries bloat my executable
- attribute binary bytes to source files
- compare binary sizes between builds

## When to choose
- you need to understand or reduce executable or library size
- you want automated binary size regression checks in CI
- you need per-symbol or per-compile-unit size attribution

## When to avoid
- you need runtime performance profiling rather than size analysis
- you work with file formats outside ELF, Mach-O, PE/COFF, or WebAssembly

## Facets
- artifact type: cli-tool
- maturity: active
- function: developer-tools, benchmarking, parser
- domain: developer-tools, performance
- platform: windows, cli, cpp
- tags: binary-analysis, size-profiling, elf, dwarf, mach-o, binary-size, command-line, linux, macos

## Member repositories
- google/bloaty (main) score 61

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:22.061348+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:55:43.692898+00:00, confidence not recorded.
  - readme: https://github.com/google/bloaty (fetched 2026-08-28T04:09:22.061348+00:00, sha 1a57cb2da1db)
- Data as of 2026-08-30T08:39:29.467469+00:00.