HeinOnline vs ProQuest Central
| HeinOnline | ProQuest Central | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | No |
| Paid from | Free | — |
| Open source | No | No |
| Platforms | Web | Web |
| Free plan | — | No |
| Full-text access | — | Yes |
| Advanced search | — | Yes |
| Subject coverage | — | multidisciplinary |
| Content types | — | scholarly journals; trade and professional titles; newspapers; magazines; dissertations; working papers; case studies; market reports; conference papers |
| Theses and dissertations | — | Yes |
| Conference proceedings | — | Yes |
| Institutional access | — | Yes |
Both are listed in Best Academic Research Databases. On Specifiction, ProQuest Central scores higher on our published basis.