1
AppFlowy
Open-source workspace for notes, wikis, and projects.
Open Source · official site appflowy.com (not linked) · Alternatives
Best Open Source tools in 2026 (25 picks)
25 real Open Source products, chosen and described by LaunchNest editors. Self-hostable, open-source alternatives to popular software.
2
AFFiNE
Open-source docs, whiteboards, and databases.
Open Source · official site affine.pro (not linked) · Alternatives
3
Plane
Open-source project management.
Open Source · official site plane.so (not linked) · Alternatives
4
Huly
Open-source all-in-one team platform.
Open Source · official site huly.io (not linked) · Alternatives
5
Outline
Team knowledge base and wiki.
Open Source · official site getoutline.com (not linked) · Alternatives
6
Docmost
Open-source collaborative wiki.
Open Source · official site docmost.com (not linked) · Alternatives
7
BookStack
Simple self-hosted wiki platform.
Open Source · official site bookstackapp.com (not linked) · Alternatives
8
OpenProject
Open-source project management software.
Open Source · official site openproject.org (not linked) · Alternatives
9
Mattermost
Secure, self-hostable team messaging.
Open Source · official site mattermost.com (not linked) · Alternatives
10
Rocket.Chat
Open-source communication platform.
Open Source · official site rocket.chat (not linked) · Alternatives
11
Nextcloud
Self-hosted file sync and collaboration suite.
Open Source · official site nextcloud.com (not linked) · Alternatives
12
Immich
Self-hosted photo and video backup.
Open Source · official site immich.app (not linked) · Alternatives
13
Jellyfin
Free media server for your own collection.
Open Source · official site jellyfin.org (not linked) · Alternatives
14
Formbricks
Open-source survey and experience management.
Open Source · official site formbricks.com (not linked) · Alternatives
15
16
Hoppscotch
Open-source API development ecosystem.
Open Source · official site hoppscotch.io (not linked) · Alternatives
17
Appwrite
Open-source backend for web and mobile apps.
Open Source · official site appwrite.io (not linked) · Alternatives
18
PocketBase
Backend in a single file with database and auth.
Open Source · official site pocketbase.io (not linked) · Alternatives
19
Directus
Turn any SQL database into an API and admin app.
Open Source · official site directus.com (not linked) · Alternatives
20
21
Payload
Open-source TypeScript CMS and app framework.
Open Source · official site payloadcms.com (not linked) · Alternatives
22
Kestra
Open-source orchestration for workflows.
Open Source · official site kestra.io (not linked) · Alternatives
23
Windmill
Turn scripts into workflows and internal apps.
Open Source · official site windmill.dev (not linked) · Alternatives
24
Typesense
Fast, typo-tolerant open-source search.
Open Source · official site typesense.org (not linked) · Alternatives
25
Meilisearch
Lightning-fast open-source search engine.
Open Source · official site meilisearch.com (not linked) · Alternatives
Rankings are editorial. Logos and trademarks belong to their owners. Browse the full Open Source category.
Questions
What are the best Open Source tools?
LaunchNest editors currently rank AppFlowy, AFFiNE, Plane at the top of the Open Source category, followed by 22 more curated products.
How does LaunchNest choose Open Source tools?
Each listing is a real product checked against its official website and described in our own words. The editor's pick comes first, then the newest additions. No placement is paid.
Can I suggest a tool for this list?
Yes. Submit it through the LaunchNest submit form; an editor reviews every submission before it appears.