Code search is one of the most powerful techniques in a security researcher’s arsenal. Searching across public repositories and open source projects can reveal hardcoded credentials, accidentally committed API keys, vulnerable code patterns, and outdated dependencies before attackers find them. Beyond offensive use, code search engines help understand how third-party libraries work, trace the origin of code snippets, and identify whether a vulnerability has been patched across different forks of a project.Documentation Index
Fetch the complete documentation index at: https://mintlify.com/edoardottt/awesome-hacker-search-engines/llms.txt
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Code Search Engines
GitHub Code Search
Search globally across all of GitHub, or scope your search to a particular repository or organization.
GitLab Code Search
Advanced search for faster, more efficient search across the entire GitLab instance.
grep.app
Search across a half million git repos using fast, regex-capable queries.
SearchCode
Search 75 billion lines of code from 40 million projects across multiple hosting platforms.
SourceGraph
Understand and search across your entire codebase with powerful code intelligence.
publicwww.com
Find any alphanumeric snippet, signature or keyword in the web pages HTML, JS and CSS code.
NerdyData
Find companies based on their website’s tech stack or code signatures.
RepoSearch
Source code search engine that helps you find implementation details, example usages or just analyze code.
HotExamples
Search code examples from over 1 million projects across many programming languages.
WebFinery
Search the source code of the web for specific patterns and strings.
Repogrep
AI coding agent that can search across any public GitHub repository.
WP Directory
Lightning fast regex searching of code in the WordPress Plugin and Theme Directories.
Google Code Archive
Data found on the Google Code Project Hosting Service, which was turned down in early 2016.
Snipplr
Code snippet search engine that allows users to search and share code snippets across various programming languages and frameworks.
ScriptMafia
Download full nulled scripts for research and analysis.
SearchFTPs
The most advanced FTP Search Engine service maintained by members.
Repository Hosting & Discovery
Sourceforge
Complete Open-Source and Business Software Platform hosting thousands of projects.
GitHub Gists
Instantly share code, notes, and snippets — a common place for quick code drops, including accidental leaks.
CodeBerg
Collaboration platform and Git hosting for free and open source software, content and projects.
Fedora Pagure
Open Source software code hosting system used by the Fedora community.
LaunchPad
Software collaboration platform providing bug tracking, code hosting, code reviews, and Ubuntu package building.
Sourcehut
Collection of tools useful for software development with a focus on simplicity.
repo.or.cz
Public Git hosting site with a list of open source projects.
android.googlesource.com
Git repositories on Android, hosting all official Android Open Source Project code.
deps.dev
Service developed and hosted by Google to help developers better understand the structure, construction, and security of open source software packages.
gitorious.org
Read-only mirror of the former gitorious.org code hosting website.
Ecosyste.ms
An open API service providing package, version and dependency metadata of many open source software ecosystems and registries.
API & Collection Discovery
SwaggerHub
Search public APIs and Domains in SwaggerHub to discover and review API definitions.
RapidAPI Public Hub
Explore the world’s largest API marketplace with thousands of public APIs.
Postman Public Collections
Explore the best APIs, collections, workspaces in the world on the Postman Public API Network.