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CODEOWNERS Tester

Shows which owners GitHub or GitLab assigns to each changed file from your CODEOWNERS file.

CODEOWNERS Tester

CODEOWNERS and changed files

Owners

FileOwnersMatching rule

01

What it does

Shows which owners GitHub or GitLab assigns to each changed file from your CODEOWNERS file.

  • GitHub semantics (last matching pattern wins, gitignore-like patterns with differences documented) and GitLab sections, optional sections…
  • Lints unknown syntax and unowned paths
  • Reuses the gitignore matcher with flags

02

Private by design

Everything happens in your browser. Nothing you type, paste or upload is sent anywhere, and it keeps working offline once the page has loaded.

03

What you get

Owners per file and the matching rule, with a Copy and a Download button on every result.

  • CODEOWNERS
  • GitHub
  • GitLab

Why it matters

Shows which owners GitHub or GitLab assigns to each changed file from your CODEOWNERS file.

GitHub semantics (last matching pattern wins, gitignore-like patterns with differences documented) and GitLab sections, optional sections and approval counts. Lints unknown syntax and unowned paths. Everything runs in your browser; nothing you paste is sent unless you press Fetch.

How to use it

  1. Paste or type the input the tool asks for.
  2. Read the summary and the table or preview.
  3. Adjust the options if you need a different result.
  4. Copy or download the output. Nothing leaves this page.

FAQ

Is my input uploaded?

No. The work runs in your browser and nothing you type, paste or upload is sent anywhere.

Will this change my site for me?

No. It shows results and, where it writes rules or files, you copy them and apply them yourself.

Can I rely on this as official guidance?

It follows public documentation and well-known algorithms, and tells you where it is a subset or a simulation. Confirm critical changes in the official tool or a staging environment.

Work with me

Want a site that gets these right?

I build fast, accessible websites and web apps that pass these checks from day one. Tell me about your project and I'll reply personally with honest next steps.

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