| Class | Rating | Complexity | Lines of code |
|---|---|---|---|
| H5PCore | 219 | 831 | |
| H5P_Plugin | 209 | 966 | |
| H5PContentValidator | 194 | 992 | |
| H5PWordPress | 150 | 894 | |
| H5P_Plugin_Admin | 144 | 780 | |
| H5PValidator | 143 | 464 | |
| H5PContentAdmin | 131 | 742 | |
| H5peditor | 123 | 436 | |
| H5PLibraryAdmin | 87 | 511 | |
| H5PDefaultStorage | 78 | 275 | |
| H5PContentQuery | 54 | 203 | |
| H5PEditorAjax | 51 | 216 | |
| H5PStorage | 37 | 140 | |
| H5peditorFile | 33 | 140 | |
| H5PExport | 32 | 121 | |
| H5PEventBase | 30 | 69 | |
| H5PMetadata | 30 | 58 | |
| H5PEditorWordPressStorage | 25 | 138 | |
| H5PDevelopment | 23 | 85 | |
| H5PPrivacyPolicy | 23 | 413 | |
| H5PEditorWordPressAjax | 10 | 86 | |
| H5P_Event | 4 | 43 | |
| H5PHubEndpoints | 2 | 4 | |
| H5PPermission | 0 | 0 | |
| H5PEditorEndpoints | 0 | 0 | |
| H5PDisplayOptionBehaviour | 0 | 0 |