OpenSlides vs osem

Both are self-hosted conference management projects. This page compares how well each one is actually maintained — the part you cannot see from a feature list.

OpenSlides scores 53 against osem's 32, putting it clearly ahead on the strength of more recent releases and a stronger recent trend. That measures project health, not feature fit — osem may still be the right choice if it does what you need.

	OpenSlides	osem
Health score	53/100	32/100
Commits (11 mo)	82	178
Commits (last 3 mo)	20	41
Stars	647	927
Latest release	23 Sept 2026	24 May 2016
Licence	MIT	MIT
Built with	Docker	Ruby, Docker
Typical RAM	1 GB	1 GB

OpenSlides

Presentation and assembly system for managing and projecting agenda, motions and elections of an assembly.

53/100

Steady

Maintained, but at a slower pace than the leaders in its category.

Maintenance 10/40

Releases 25/25

Community 6/20

Momentum 12/15

Commit activity more than 26% of tracked projects; popularity more than 28%. How this is calculated.

Commits, last 11 months

osem

Event management tailored to free Software conferences.

32/100

At risk

Little to no recent activity. Treat as unmaintained until proven otherwise.

Maintenance 16/40

Releases 1/25

Community 7/20

Momentum 8/15

Commit activity more than 41% of tracked projects; popularity more than 33%. How this is calculated.

Commits, last 11 months

How to read this

Everything above is measured, not opinion: commit counts and release dates come from the public repositories, and the health score ranks each project against all 1352 projects we track. Read the full method.

What this comparison deliberately does not do is tell you which has the better feature set. Maintenance health tells you which project will still be receiving security fixes in two years. Decide that first, then compare features on the projects that survive the filter.

See every option in this category: self-hosted conference management.