Defendend is an open-source security and developer tooling publisher that concentrates on command-line utilities engineered to accelerate secure-code workflows. Its single public offering, ast-index, is a cross-language source-code search engine that builds lightning-fast semantic indexes for Android, iOS, TypeScript, Rust, Ruby, C#, Python, Go, Perl and C++ repositories. By pre-parsing abstract syntax trees and storing token-level metadata, the tool lets engineers run structural queries, dependency traces and vulnerability pattern hunts across multi-million-line codebases in milliseconds instead of minutes. Typical use cases include auditing third-party libraries for risky APIs, locating deprecated cryptography calls during hardening sprints, mapping shared components between mobile and server tiers, and generating compliance evidence for SBOM submissions. The lightweight CLI integrates with CI pipelines, outputs JSON for further scripting, and respects .gitignore rules out of the box, making it equally suited to local forensics on a laptop or nightly scans inside containerized runners. Because the utility is distributed as a self-contained binary, security teams can add it to contractor laptops or air-gapped build farms without elevated privileges. Defendend’s software is available for free on get.nero.com, where downloads are delivered through trusted Windows package sources such as winget, always fetch the latest upstream release, and support batch installation alongside other applications.

ast-index

Fast code search CLI for Android, iOS, TypeScript, Rust, Ruby, C#, Python, Go, Perl, C++ projects

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