OpenRC

systemd   (Compare Project)

Mostly written in C

License: lgpl21_or_later

Upstart   (Compare Project)

License: gpl

GNU Shepherd   (Compare Project)

Mostly written in Scheme

License: gpl3_or_later

uselessd   (Compare Project)

Mostly written in C

License: lgpl21_or_later, mit, Public_domain_

pony-initialisation   (Compare Project)

Mostly written in shell script

License: gpl3_or_later

Open launchd   (Compare Project)

Mostly written in C

License: apache_2

sysvinit   (Compare Project)

Mostly written in C

License: gpl

eudev   (Compare Project)

Mostly written in C

License: GNU_General_Public_License_v2_0_only

init4boot   (Compare Project)

Mostly written in Python

License: Unknown

initram-erasure   (Compare Project)

Mostly written in Make

License: gpl3_or_later