Audience
Developers searching for a solution to find vulnerabilities across their codebase
About CodeQL
Discover vulnerabilities across a codebase with CodeQL, our industry-leading semantic code analysis engine. CodeQL lets you query code as though it were data. Write a query to find all variants of a vulnerability, eradicating it forever. Then share your query to help others do the same. CodeQL is free for research and open source. Run real queries on popular open source codebases using CodeQL for Visual Studio Code. See how powerful it is to discover a bad pattern and then find similar occurrences across the entire codebase. You can create CodeQL databases yourself for any project that's under an OSI-approved open source license. GitHub CodeQL can only be used on codebases that are released under an OSI-approved open source license, to perform academic research, or to generate CodeQL databases for or during automated analysis. Download and add the project’s CodeQL database to VS Code, or create a CodeQL database using the CodeQL CLI.