0github

lastmod 2025-11-04created 2025-11-041 edits

A heatmap-based diff viewer for code review

About

• A tool that color-codes each line and token in a code change (diff) to visualize how much review it needs
• Designed to highlight ‘parts worth a second look’ rather than simply detecting bugs
• Use it right away by replacing github.com with 0github.com in a GitHub Pull Request URL
• Internally, it clones the repository into a VM and runs gpt-5-codex to produce analysis results in a JSON structure

See also

• diff

Favorite site

• A heatmap diff viewer for code reviews
• 0github - A heatmap-based diff viewer for code review | GeekNews