| Opendev | 3 | 2 |
| Openconnect | 1 | 2 |
| Opendoas Project | 1 | 2 |
| Openconcept | 1 | 2 |
| Opendkim | 1 | 2 |
| Openbaraza | 1 | 2 |
| Openam | 1 | 2 |
| Openai | 2 | 2 |
| Openapi-python-client Project | 1 | 2 |
| Open62541 | 1 | 2 |
| Oopspam | 1 | 2 |
| Ooohboi Steroids For Elementor Project | 1 | 2 |
| Open-falcon | 2 | 2 |
| Open Faculty Evaluation System Project | 1 | 2 |
| Open Tibia Server Cms | 1 | 2 |
| Open Source Security Information Management | 1 | 2 |
| Onlinetools.org | 1 | 2 |
| Onyaktech Comments Pro Project | 1 | 2 |
| Onnogroen | 1 | 2 |
| Onlyscript.info | 1 | 2 |