OpenSourceProjects logo

kamailio vs opensips

kamailio and opensips are closely matched on community size and activity — the right pick depends on your specific requirements.
kamailio logo
kamailio
Option A

Kamailio - The Open Source SIP Server for large VoIP and real-time communication platforms, focusing on flexibility, security and scalability

Activity score
71
View Repository
opensips logo
opensips
Option B

OpenSIPS is a GPL implementation of a multi-functionality SIP Server that targets to deliver a high-level technical solution (performance, security and quality) to be used in professional SIP server platforms.

Activity score
68
View Repository
Metrickamailioopensips
Stars2,9101,504
Forks1,120667
Open Issues27294
LanguageCC
LicenseNOASSERTIONNOASSERTION
Last commit2mo ago2mo ago
Repo age12.8y13.4y
Activity score71/10068/100

Detailed Comparison

Community & Popularity

kamailio wins

kamailio has 1.9× more stars (2,910 vs 1,504).

Development Activity

Comparable

Both are actively maintained (last commit 48d ago vs 55d ago).

Project Maturity

Comparable

Similar project age (12.8y vs 13.4y).

Technology Stack

Comparable

Both are primarily written in C.

Other comparisons

Popular comparisons

→ Browse all comparisons
→ kamailio details→ opensips details