# google/styleguide

Style guides for Google-originated open-source projects

Repository: https://github.com/google/styleguide
Canonical: https://ross.abutalabs.com/products/styleguide
Homepage: https://google.github.io/styleguide/
Language: HTML
License: NOASSERTION
License Family: other
Topics: cpplint, styleguide, style-guide
Last push: 2026-06-03T15:51:23+00:00

## Health v2 (maintenance only)
Score: 70/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 85, release rhythm 35, longevity 100
- inputs: {"age_days": 4123, "days_push": 91, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 39538, forks 12943 (observed 2026-08-28T04:12:07.901909+00:00)

## What it is
Google's official style guides for many programming languages (C++, Python, Java, JavaScript, Go, and more), published for Google-originated open-source projects. It also includes an Emacs settings file for Google C++ style, while the cpplint tool itself has moved to a community fork.

## Use cases
- find Google's official C++ style guide
- check Python naming and formatting conventions used at Google
- align my open-source project with Google coding standards
- set up Emacs for Google C++ style
- learn recommended shell scripting conventions
- reference JSON and Markdown style rules

## When to choose
- you contribute to or maintain a Google-originated open-source project
- you want authoritative, battle-tested coding conventions for a language
- you are defining a style guide for your team and want a proven baseline

## When to avoid
- you need the cpplint linting tool itself - use the community fork at cpplint/cpplint
- you want to contribute changes - external pull requests are not accepted
- you need style rules for Dart or Kotlin - those guides live in separate projects

## Facets
- artifact type: learning-resource
- maturity: maintenance
- function: documentation, linter, developer-tools
- domain: developer-tools, documentation, programming-languages
- platform: cross-platform
- tags: style-guide, coding-standards, cpplint, code-style, google

## Member repositories
- google/styleguide (main) score 70

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:12:07.901909+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 2026-08-29T16:24:07.133481+00:00, confidence not recorded.
  - readme: https://github.com/google/styleguide (fetched 2026-08-28T04:12:07.901909+00:00, sha 03d5dc377185)
  - homepage: https://google.github.io/styleguide/ (fetched 2026-08-29T07:46:40.514852+00:00, sha 463cfefb24a6)
- Data as of 2026-08-30T08:39:29.467469+00:00.