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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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zulip-archive
Generate a static HTML archive of messages in any combination of streams in a Zulip organization.
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Zulip
Zulip server and web application. Open-source team chat that helps teams stay productive and focused.
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Talkyard
A community discussion platform: Brings together the main features from StackOverflow, Slack, Discourse, Reddit, and Disqus blog comments.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
What about Discourse? They have an open source, self-hostable version:
https://github.com/discourse/discourse
I've not tried but this has been on my radar for years: a forum than runs on Node - NodeBB
https://github.com/NodeBB/NodeBB
For a PHP based forum, glance at Flarum - I have not tried but it's been on my radar for years.
https://github.com/flarum/flarum
Search engine indexing is available in Zulip today via Zulip's public archive tool (https://github.com/zulip/zulip-archive). Many larger OSS projects using Zulip, like Rust, Julia, and Lean Prover, use it.
We expect to have a native feature allowing a configurable set of streams to be browsed using a real Zulip web app UI without creating an account, available in beta in the next few weeks; we're actively integrating the implementation via https://github.com/zulip/zulip/pull/18532.
We plan to look at optional search indexing in that native implementation once the logged-out access feature is complete complete.
Search engine indexing is available in Zulip today via Zulip's public archive tool (https://github.com/zulip/zulip-archive). Many larger OSS projects using Zulip, like Rust, Julia, and Lean Prover, use it.
We expect to have a native feature allowing a configurable set of streams to be browsed using a real Zulip web app UI without creating an account, available in beta in the next few weeks; we're actively integrating the implementation via https://github.com/zulip/zulip/pull/18532.
We plan to look at optional search indexing in that native implementation once the logged-out access feature is complete complete.
We (I work for Forem) have an opensource selfhost installer [0] so you can have total control over your data and community too.
[0] https://github.com/forem/selfhost
> > after few months I can't update to a new version
> forum owners often won't upgrade their website ... plugins that likely will break
Maybe then it'd make sense if I mentioned Talkyard (which I'm developing) https://www.talkyard.io (open source) — it has automatic upgrades. There's not yet any plugin system, instead currently "everything" is built-in, and there are (unfortunately) fewer features.