| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 1 |
| Spec score · Data Visualization Libraries Software | 8.2 (#7) | 7.9 (#10) |
| Spec score · Data Visualization Software | 8.1 (#40) | 7.9 (#52) |
| Data sources | JavaScript arrays,tuples,objects,data APIs,and Cube | CSV,JSON |
| Platform | web | web |
| Purpose | Chart.js is a simple, flexible JavaScript charting library for the modern web. | D3 is a free, open-source JavaScript library for creating dynamic, data-driven visualizations. |
| Support | The documentation directs users to Discord, GitHub Discussions, and Stack Overflow for community help. | The D3 community page recommends GitHub Discussions as the preferred place for support requests and community engagement. |
