Super quick list of alternatives to Jira and/or Confluence, Stash, Crucible, etc.

ALTERNATIVES.adoc

Alternatives to the "Atlassian Stack"

Fuller stack alternatives (replaces at least two of the Atlassian stack)

• Phabricator

• Github

• Gitlab

• Taiga

• Redmine

Jira/Ticketing alternatives

• Fogbugz

• PivotalTracker

• Asana

Crucible alternatives

• Gerrit

• Review Board

Hipchat alternatives

See https://github.com/cjbarber/hipchat-alternatives for more ideas.

• Slack

• Grove

Confluence alternatives

Besides a gazillion open source wiki projects…​

• Gollum

• Crowdbase

For a bigger far more all encompassing documentation toolchain:

• Jive Disclosure: former employer (but thoroughly recommend for the right culture/environment)

• Lithium

• Salesforce.com’s Chatter Disclosure: former employer (don’t recommend based on user experience 3+ years ago)

As for the email from today, that Atlassian ends the support for self hosted server.. most important site right now.
But as far as I can see, no real alternative (with plugins) for Confluence.

Confluence alternative
https://github.com/BookStackApp/BookStack
https://tiki.org/Download
https://bluespice.com
https://github.com/documize/community
https://wiki.js.org/

Jira alternative
https://www.tuleap.org/pricing/on-premise/

https://backlog.com/ - a replacement of Jira + Confluence + Bitbucket.

We recently switched from Confluence to AllAnswered and really loved it. AllAnswered combines Wiki documents like Confluence and Questions & Answers similar to Stack Overflow. Great product and very easy to use. Here is their website https://www.allanswered.com

ZenTao for sure. The on premise and self-hosted Jira alternative. It offers open source community version and you can find it on Github(HERE) too.

Check out Drupal Wiki as Confluence alternative. Can be self-hosted (on premise) and has almost the same structure and functionality as Confluence - even content migration from Confluence is possible see Migrate from Confluence to Drupal Wiki.

ZenTao for sure. The on premise and self-hosted Jira alternative. It offers open source community version and you can find it on Github(HERE) too.

Yeah, it's good.

Check out Doctave if you're looking for a developer-friendly Confluence alternative that uses a docs-as-code approach. You can also use the open source documentation site generator for free. (Disclaimer: founder here)

Jira alternative (on-premises and open source) --> OpenProject (https://github.com/opf/openproject)

I would shamelessly add my project, Docmost, as an open-source alternative to Atlassian Confluence, with real-time collaboration.

Github: https://github.com/docmost/docmost
Website: https://docmost.com