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kertal created codeowner-filter - a simple web tool that solves a specific problem for large teams using GitHub’s CODEOWNERS feature.

CODEOWNERS Filter/Scope Generator tool interface showing a form where users can paste their GitHub CODEOWNERS file content to generate search filters for VSCode, scope configurations for IDEA IDEs, and exportable spreadsheet data to better track team file ownership.

If you’ve worked with CODEOWNERS in larger repos, you know how challenging it can be to find just the files your team owns. This tool lets you paste your CODEOWNERS file contents, automatically detects teams, and generates filtered path patterns.

What I like is that it provides the results in multiple formats (VSCode patterns, IDEA filters, and raw path lists) with easy copy buttons. It even saves your last input in localStorage.

Update 22.04.2025

kertal pointed me at codeowners-filter by akowalska622, a more advanced and much more convenient VSCode plugin for filtering by code owners.