Code Search Tools
Alternatives to ast-grep
ast-grep works on syntax trees rather than source text, combining structural search with linting and rewriting. Its YAML rules can mix pattern, kind, regex, relational, and composite conditions, while the CLI supports rule creation, snapshot-based testing, severity levels, and interactive rewrite previews. It covers more than 20 languages, accepts custom languages, integrates with editors, and offers JavaScript and WebAssembly APIs. A browser playground provides pattern and rewrite experiments without local installation. The project describes parallel Rust processing for searches and replacements across thousands of files.
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Understand Understand suits developers and teams that need to navigate or analyze source code across supported languages, including in automated or air-gapped workflows.
From $100/mo Free trial Windows · macOS · Linux · API8.5 Visit Specs - 02 Avidemux Free plan Open source Web · Windows · macOS · Linux8.3 Visit Specs
- 03 Semantic Designs Source Code Search Engine
This tool suits teams that need structured searches and code metrics across indexed source repositories.
Free plan Windows · Linux · API · Self-hosted8.3 Visit Specs - 04
Chromium It suits developers learning about, building, or contributing to Chromium and its open-source projects.
Open source Windows · macOS · Linux · iOS8.1 Visit Specs - 05
Code Search It is aimed at organizations that need to search and change code across hundreds or thousands of repositories and want to self-host.
Free plan Web · Windows · macOS · Linux8.1 Visit Specs - 06 GNU GLOBAL Free plan Windows · macOS · Linux · Self-hosted8.1 Visit Specs
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Sourcebot Sourcebot suits organizations that want to search and navigate code across multiple repositories while hosting the tool on their own infrastructure.
From $20/mo Free plan Web · API · Self-hosted8.0 Visit Specs - 08 CodeCompass Web · Linux · API · Self-hosted7.8 Visit Specs
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Code Fundi Code Fundi is suited to teams and developers building AI-agent workflows around repositories, or using code search for modernization and technical due diligence.
From $21/mo Web · API · Browser extension7.8 Visit Specs - 10 OpenGrok
OpenGrok suits teams that want to search and browse source trees through a self-hosted web application.
Free plan Web · Windows · macOS · Linux7.8 Visit Specs - 11 Shebe
Shebe suits developers and AI coding agents searching large, locally cloned codebases, especially where text matching is useful.
Free plan Windows · macOS · Linux · API7.8 Visit Specs - 12
Sourcegraph Code Search From $1,333.33/mo Free trial Web · API · Self-hosted · Browser extension7.8 Visit Specs - 13
sqry sqry suits developers who want to query code relationships locally or connect structural code queries to AI assistants and LSP-compatible editors.
Free plan Windows · macOS · Linux7.8 Visit Specs - 14
Comby Comby suits developers performing structural code search, broad refactoring, or targeted code changes across a codebase.
Windows · macOS · Linux · API7.7 Visit Specs - 15 Hound
Hound suits developers who want to search code across repositories using regular expressions and a web interface.
Web · macOS · Linux · API7.7 Visit Specs - 16
searchcode It suits developers and AI-assisted workflows that need searchable analysis of public repositories.
Free plan Web · API · Self-hosted7.7 Visit Specs - 17 Source Insight From $119/mo Free trial Windows7.7 Visit Specs
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Cloud Native Buildpacks Lifecycle Linux · Self-hosted7.6 Visit Specs - 19 Imagix 4D Free trial Windows · Linux7.6 Visit Specs
- 20 LXR Cross Referencer Free plan Web · Linux · Self-hosted7.6 Visit Specs
- 21 LeIndex Web · Windows · macOS · Linux7.5 Visit Specs
- 22 Krugle Web · macOS · Linux · API7.4 Visit Specs
- 23 Woboq Code Browser Web · macOS · Linux · Self-hosted7.2 Visit Specs
- 24 Zoekt Free plan Web · API · Self-hosted7.2 Visit Specs
- 25 Livegrep Web · Linux · Self-hosted7.1 Visit Specs
- 26 idx macOS · Linux7.0 Visit Specs
- 27 HodorReflexes 6.9 Visit Specs
- 28 Sensegrep Windows · macOS · Linux · API6.8 Visit Specs
- 29 Kythe macOS · Linux · API · Self-hosted6.7 Visit Specs
- 30 ack Windows · macOS · Linux6.2 Visit Specs
Choosing instead of ast-grep
Readers may look elsewhere when ast-grep’s limits matter: its FAQ says some advanced static-analysis information is unsupported, and one rule cannot target multiple languages at once. Alternatives differ in indexing, navigation, collaboration, and deployment. Compare AST matching and rewriting with symbol graphs, full-text or repository-wide search, web browsing, AI-agent access, and code-host integrations. Also weigh platform coverage, local or self-hosted operation, editor support, and price before changing tools.