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Open Source Alternatives

List of open-source alternatives to everyday SaaS products.

btw-so/open-source-alternatives
Open GitHub
List stars
8,830
README repos
146
Indexed repos
145
List commits
59
Forks
376
Open issues
49

Tracked list growth

GitHub stars and default-branch commits for btw-so/open-source-alternatives.

Latest scan 2026-10-17 10:50

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Indexed repositories

7 repos matching these filters.

Topic: collaboration
Latest repo push 2026-10-17

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RocketChat/Rocket.Chat

The Secure CommsOS™ for mission-critical operations

AI dev
Stack
TypeScript Express React Vite Bun npm Yarn
GitHub topics
#chat #collaboration #foss #free #hacktoberfest #javascript
Updated
2026-10-06
Lists
4 list mentions
First commit
2015-05-19
License
NOASSERTION
Issues
4,197 open
Sign in to like RocketChat/Rocket.Chat
46,213
stars
Forks
13,948
Commits
30,424 commits
Star growth, last 7 days
No 7-day history
Commit velocity, last 7 days
No 7-day history
Website GitHub
mattermost/mattermost

Mattermost is an open source platform for secure collaboration across the entire software development lifecycle..

AI dev
Stack
TypeScript Cobra Express gRPC Go React Go modules npm
GitHub topics
#collaboration #golang #hacktoberfest #mattermost #monorepo #react
Updated
2026-10-12
Lists
7 list mentions
First commit
2015-06-15
License
NOASSERTION
Issues
1,092 open
Sign in to like mattermost/mattermost
39,317
stars
Forks
9,043
Commits
23,506 commits
Star growth, last 7 days
0 0.0%
Commit velocity, last 7 days
0 0.0%
Website GitHub
mattermost-community/focalboard

Focalboard is an open source, self-hosted alternative to Trello, Notion, and Asana.

Stack
TypeScript gRPC Go React .NET SDK Go modules npm
GitHub topics
#asana #collaboration #goal-tracking #golang #hacktoberfest #kanban-board
Updated
2026-05-18
Lists
6 list mentions
First commit
2020-10-08
License
NOASSERTION
Issues
784 open
Sign in to like mattermost-community/focalboard
26,493
stars
Forks
2,583
Commits
3,646 commits
Star growth, last 7 days
No 7-day history
Commit velocity, last 7 days
No 7-day history
Website GitHub
zulip/zulip

Zulip server and web application. Open-source team chat that helps teams stay productive and focused.

AI dev
Stack
Python Astro Django Scrapy Tornado npm pnpm uv
GitHub topics
#apache #chat #collaboration #electron #foss #free
Updated
2026-10-15
Lists
6 list mentions
First commit
2012-08-28
License
Apache-2.0
Issues
2,055 open
Sign in to like zulip/zulip
26,050
stars
Forks
10,406
Commits
72,055 commits
Star growth, last 7 days
0 0.0%
Commit velocity, last 7 days
0 0.0%
Website GitHub
plankanban/planka

Elegant open source project tracking. Self-hosted Kanban for teams — free Community edition, with PLANKA Pro for organisations.

Stack
JavaScript React Vite npm pip
GitHub topics
#collaboration #docker #kanban #project-management #self-hosted #task-management
Updated
2026-09-11
Lists
3 list mentions
First commit
2019-08-30
License
NOASSERTION
Issues
425 open
Sign in to like plankanban/planka
12,540
stars
Forks
1,378
Commits
1,138 commits
Star growth, last 7 days
No 7-day history
Commit velocity, last 7 days
No 7-day history
Website GitHub