google/codesearch
Fast, indexed regexp search over large file trees observed · 2026-08-28
Health v2 · maintenance only
43/100
- Activity 24
- Release rhythm 35
- Longevity 100
Flags: no_releases
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 4174
- days_rel: n/a
- days_push: 461
- n_releases_24m: 0
Adoption not part of the score
3999 stars · 402 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
A set of command-line programs written in Go for indexing and performing regular expression searches over large bodies of source code. It uses a trigram index to enable fast regexp search over large file trees, based on the approach behind Google Code Search.
Use cases
- search a large codebase with regular expressions quickly
- index a big source tree for fast grep-like queries
- find all usages of a function across a monorepo
- run regexp searches that grep is too slow for
- search code from the command line with an indexed tool
When to choose
- you need fast regexp search over very large file trees
- you want a lightweight CLI alternative to grep with indexing
- you need linear-time regexp matching without backtracking pitfalls
When to avoid
- you need semantic or IDE-style code navigation
- you want a hosted or web-based code search service
- your corpus is small enough that plain grep suffices
Facets
cli-tool · maturity maintenance
search-engine parser developer-tools cli developer-tools windows cross-platform cli go regex-search trigram-index code-indexing grep-alternative command-line search algorithms linux macos
3 sources
- readme: https://github.com/google/codesearch · fetched 2026-08-28 · 21d266b55281
- homepage: http://swtch.com/~rsc/regexp/regexp4.html · fetched 2026-08-29 · fd837d3b9479
- site_page: https://swtch.com/~rsc/regexp/regexp2.html · fetched 2026-08-29 · 1c74f5d11491
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| google/codesearch | main | 43 |
For agents
markdown · JSON · MCP: product_card(name="google/codesearch")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem