| Wappalyzer | Identify technologies used on websites. |
| JSONView | View JSON in a more humane way using Chrome |
| React Developer Tools | Inspect React component hierarchies when opening React sites |
| Web Vitals | Measure metrics for a healthy site |
| VisBug | Open source browser design tools |
| CSS Peeper | Extract CSS and build beautiful styleguides. |
| Awesome Screenshot | Full page screen capture and screen recorder 2 in 1. |
| Apollo Client Developer Tools | Chrome DevTools extension for the open-source JavaScript GraphQL client, Apollo Client |