| Core-Apps | 9 | 9 |
| Coreboot | 1 | 1 |
| Corebos | 1 | 9 |
| Corecode | 1 | 1 |
| Coredial | 1 | 2 |
| Coredns.Io | 1 | 3 |
| Coreftp | 2 | 17 |
| Corega | 11 | 19 |
| Corehr | 1 | 2 |
| Corejoomla | 1 | 1 |
| Corel | 25 | 63 |
| Corellicoin Project | 1 | 1 |
| Coremail | 1 | 3 |
| Coremail Xt Project | 1 | 1 |
| Corenews | 1 | 3 |
| Corenlp-Js-Interface Project | 1 | 1 |
| Corenlp-Js-Prefab Project | 1 | 1 |
| Corephp | 2 | 2 |
| Corero | 1 | 2 |
| Coresol | 1 | 1 |
| Cornelisnetworks | 2 | 2 |
| Cornelraiu | 1 | 1 |
| Corner Project | 1 | 1 |
| Cornerstone Project | 1 | 1 |
| Corntree | 1 | 1 |
| Coronamatrix | 1 | 4 |
| Corosync | 1 | 2 |
| Corporater | 1 | 2 |
| Correos | 2 | 2 |
| Correosexpress Project | 1 | 1 |
| Corsair | 4 | 4 |
| Corusent | 1 | 1 |
| Corveda | 1 | 1 |
| Cory Lamle | 1 | 1 |
| Corydolphin | 1 | 1 |
| Coscale Agent Project | 1 | 1 |
| Coschedule | 1 | 1 |
| Coscms | 1 | 1 |
| Coship | 5 | 11 |
| Cosign | 1 | 2 |
| Cosmetics And Beauty Product Online Store Project | 1 | 2 |
| Cosmicperl | 1 | 4 |
| Cosmicphp | 1 | 2 |
| Cosmocms | 1 | 1 |
| Cosmos-Cloud | 1 | 1 |
| Cosmoshop | 1 | 6 |
| Cosmotokenerc20 Project | 1 | 1 |
| Cosori | 1 | 2 |
| Cososys | 2 | 3 |
| Cospas-Sarsat | 1 | 1 |
| Cotonti | 1 | 4 |
| Coturn Project | 1 | 7 |
| Couchbase | 5 | 57 |
| Couchcms | 2 | 2 |
| Count | 1 | 2 |
| Count Per Day Project | 1 | 4 |
| Counterchaos | 1 | 1 |
| Counterintuition | 1 | 1 |
| Counterpane | 2 | 4 |
| Counterpath | 2 | 2 |
| Countersoft | 1 | 1 |
| Couponaffiliates | 1 | 1 |
| Couponcabin - Coupons & Deals Project | 1 | 1 |
| Couponphp | 1 | 2 |
| Couponscript | 1 | 1 |
| Courier Management System Project | 1 | 4 |
| Courier-Mta | 2 | 3 |
| Courion | 1 | 1 |
| Course Registration Management System Project | 1 | 1 |
| Course-Builder Project | 1 | 1 |
| Courseforum | 1 | 3 |
| Courtbouillon | 1 | 2 |
| Covechurch | 1 | 1 |
| Covercms Project | 1 | 1 |
| Covesa | 1 | 2 |
| Covetfashion | 1 | 1 |
| Covid 19 Testing Management System Project | 1 | 2 |
| Covid 19 Travel Pass Management Project | 1 | 1 |
| Covid 19 Travel Pass Management System Project | 1 | 9 |
| Covid-19 Contact Tracing System Project | 1 | 1 |
| Covid-19 Directory On Vaccination System Project | 1 | 4 |
| Covide Groupware-Crm | 1 | 1 |
| Cowell Enterprise Travel Management System Project | 1 | 1 |
| Cowiki | 1 | 1 |
| Cowon America | 3 | 7 |
| Cowonamerica | 1 | 1 |
| Cows | 1 | 1 |
| Coxco Support | 7 | 7 |
| Coyavtravel | 1 | 1 |
| Coyoapp | 1 | 1 |
| Cozmoslabs | 6 | 37 |
| Cozy | 1 | 1 |
| Cozyvision | 1 | 1 |
| Cp Multi View Event Calendar Project | 1 | 1 |
| Cp Reservation Calender Project | 1 | 1 |
| Cpa Lead Reward Script Project | 1 | 1 |
| Cpaint | 1 | 4 |
| Cpan | 5 | 5 |
| Cpan::Checksums Project | 1 | 1 |
| Cpanel | 5 | 428 |
