Search code in GitHub repos using regular expressions
Search code in GitHub repos using regular expressions launched on February 23, 2020 with 614 votes, #3 of 3,162 launches that month and more than 99% of that year's launches. The site was not reachable when checked in September 2026.
In plain words
Grep.app is a development tool that lets users search code across GitHub repositories using regular expressions. It's designed for developers who need to find specific code patterns, functions, or implementations across multiple projects on GitHub. The tool provides a direct way to perform regex-based searches without manually browsing individual repositories, making it useful for code discovery, security research, and understanding how others have solved similar programming problems.
written from the facts on this page · September 2026
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Structural code grep across public GitHub repositoriesAug 2026 · grep.codemod.com · ▲15Codemod grep searches public code by syntax and structure, not just text or regex. Use ast-grep patterns to find code by shape across repositories.
GitHiredDec 2025 · githired.tech · ▲360Hey HN - today I’m launching GitHired. A hiring platform that ranks developers based on what they actually build — not what they claim on a PDF. It’s called GitHired, and here’s the core idea: GitHub > Resumes Instead of trusting “proficient in React” bullet points, we analyze a candidate’s actual GitHub: their real tech stack their most complex projects how active they are what kinds of contributions they make which skills match your job description and yes, we detect fake “green square farming.” Why we built this Because engineering hiring is broken. Resumes are inflated. Activity charts…
- IWI wrote a book on GNU grep and ripgrep2019 · ▲182
My book on "GNU grep and ripgrep" is free to download today and tomorrow [1][2] Code snippets, example files and sample chapters are available on GitHub [3] The book uses plenty of examples and regular expressions are also covered from scratch. The book is suitable for beginners as well as serves as a reference. Hope you find it useful, I would be grateful for your feedback and suggestions. I used pandoc+xelatex [4] to generate the pdf. [1] https://gumroad.com/l/gnugrep_ripgrep [2] https://leanpub.com/gnugrep_ripgrep [3]…
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