1
Mattermost
Secure, self-hostable team messaging.
Open Source · official site mattermost.com (not linked) · Alternatives
Best Self-hosted apps tools (Open Source) in 2026
7 curated Self-hosted apps products in Open Source, described in our own words.
2
Rocket.Chat
Open-source communication platform.
Open Source · official site rocket.chat (not linked) · Alternatives
3
Nextcloud
Self-hosted file sync and collaboration suite.
Open Source · official site nextcloud.com (not linked) · Alternatives
4
Immich
Self-hosted photo and video backup.
Open Source · official site immich.app (not linked) · Alternatives
5
Jellyfin
Free media server for your own collection.
Open Source · official site jellyfin.org (not linked) · Alternatives
6
Formbricks
Open-source survey and experience management.
Open Source · official site formbricks.com (not linked) · Alternatives
7
See the full Self-hosted apps topic or every Open Source pick.
Questions
What are the best Self-hosted apps tools?
On LaunchNest, editors list Mattermost, Rocket.Chat, Nextcloud first among 7 curated Self-hosted apps products.
Are these listings sponsored?
No. LaunchNest rankings are editorial and nothing on this page is a paid placement.