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Top 23 Nextcloud Open-Source Projects
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Joplin
Joplin - the privacy-focused note taking app with sync capabilities for Windows, macOS, Linux, Android and iOS.
Have you tried setting up a Joplin Server?
https://github.com/laurent22/joplin/tree/dev/packages/server
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Civic Auth
Auth in Less Than 5 Minutes. Civic Auth comes with multiple SSO options, optional embedded wallets, and user management — all implemented with just a few lines of code. Start building today.
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Nextcloud - File hosting and collaboration
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matterbridge
bridge between mattermost, IRC, gitter, xmpp, slack, discord, telegram, rocketchat, twitch, ssh-chat, zulip, whatsapp, keybase, matrix, microsoft teams, nextcloud, mumble, vk and more with REST API (mattermost not required!)
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all-in-one
📦 The official Nextcloud installation method. Provides easy deployment and maintenance with most features included in this one Nextcloud instance.
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There's an extension called floccus [1] that can sync bookmarks between numerous different browsers (including both Firefox/Gecko and Chromium/Blink based) and plug into a user-controlled NextCloud [2] or Linkwarden [3] instance running on a local homelab server.
However, I try to minimize the number of installed extensions to reduce my own browser fingerprint. As others have replied, Firefox sync works across most of today's popular downstream shadow-forks of Firefox (as in, forks that shadow the Firefox releases rather than truly forking the code). If you don't want to give Mozilla's enshittified corpse your email (I don't either), just use an email service that supports aliases to sign up for Firefox Sync... Which is in any case a good idea generally: no two of your important online accounts should point to the same email, even if behind the scenes the aliases are all routing emails back to you.
[1]: https://floccus.org/
[2]: https://nextcloud.com/
[3]: https://linkwarden.app/
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I used to run it on a Celeron NUC via the community fpm container: https://github.com/nextcloud/docker I now run it on a Much more powerful system but performance wise it's the same.
Side containers
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QOwnNotes
QOwnNotes is a plain-text file notepad and todo-list manager with Markdown support and Nextcloud / ownCloud integration.
Project mention: Ask HN: What note taking app do you guys using as a developer? | news.ycombinator.com | 2025-03-08 -
InfluxDB
InfluxDB high-performance time series database. Collect, organize, and act on massive volumes of high-resolution data to power real-time intelligent systems.
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Project mention: Lessons in creating family photos that people want to keep (2018) | news.ycombinator.com | 2025-01-26
The automatic sync function of the Nextcloud app ends accessing the photos in a way that doesn't include the location metadata of the photo. So the file it puts on your Nextcloud server does not have the location metadata.
https://github.com/nextcloud/android/issues/14409
Fortunately (I think?) the auto-upload seems to become unreliable in general so people are more likely to notice that funny things are happening.
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> Finally the upgrade is insane.
Wait until you see the "solution" for dealing with the client mangling timestamps [1]. After you've been burned by server updates, and then burned by client updates, with solutions that push the problems onto the system admin, you start to wonder if using it in the first place was a mistake.
IIRC, part of the reason they forked was because OwnCloud wasn't moving fast enough. My experience makes me think OwnCloud might have been right.
1. https://github.com/nextcloud/desktop/wiki/How-to-fix-the-err...
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> Can you expand on this further? Wouldn’t this just be exposing myself to the same vulnerabilities as OP?
Yeah I wouldn't do this personally, I just mentioned it as the simplest option.
> If I use nginx as a reverse proxy, would I be mitigating the risk?
If the reverse proxy performs additional authentication before allowing traffic to pass onto the service it's protecting, then yes, it would.
One of my more elegant solutions has been to forward a port to nginx and configure it to require TLS client certificate verification. I generated and installed a certificate on each of my devices. It's seamless for me in day to day usage, but any uninvited visitors would be denied entry with a message saying that they didn't provide a valid certificate.
However support for client certificates is spotty outside of browsers, across platforms, which is unfortunate. For example HomeAssistant on Android supports it [1] (after years of pleading), but the iOS version doesn't. [2] NextCloud for iOS however supports it [3].
In summary, I think any kind of authentication added at the proxy would be great for both usability and security, but it has very spotty support.
> Based on other advice, it seems like the self hosted VPN (wireguard) is the safest option, but slower.
I think so. It shouldn't be slow per se, but it's probably going to affect battery life somewhat and it's annoying to find it disconnected when you try to access Immich or other services.
[1] https://github.com/home-assistant/android/pull/2526
[2] https://community.home-assistant.io/t/secure-communication-c...
[3] https://github.com/nextcloud/ios/pull/2908
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rssguard
Feed reader (podcast player and also Gemini protocol client) which supports RSS/ATOM/JSON and many web-based feed services.
RSS Guard. FOSS, cross platform with mpv integration. lite is the plain text only version.
https://github.com/martinrotter/rssguard/
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Personally, I rather liked self-hosted versions of these:
Mattermost: https://mattermost.com/
Rocket.Chat: https://www.rocket.chat/
Nextcloud Talk: https://nextcloud.com/talk/
Out of those, Mattermost was the easiest to setup (just need PostgreSQL and a web server, in addition to the main container), however not being able to easily permanently delete instead of just archiving workspaces was awkward. Nextcloud Talk was very easy to get going if you already have Nextcloud but felt a bit barebones last I checked, whereas Rocket.Chat was overall the more pleasant option to use, although I wasn't the biggest fan of them using MongoDB for storage.
The user experience is pretty good with all of them, however in the groups that I've been a part of, ultimately nobody cared about self-hosting an instance, since most orgs just prefer Teams/Slack (or even Skype for just chatting/meetings) and most informal groups just default to Discord. Oh well.
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Windows-11-Guide
Windows 10/11 Guide. Including Windows Security tools, Encryption, Nextcloud, Graphics, Gaming, Virtualization, Windows Subsystem for Linux (WSL 2), Software Apps, and Resources.
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Project mention: OxiCloud – lightweight alternative to Nextcloud file sharing (Rust) | news.ycombinator.com | 2025-03-31
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vm
💻☁📦 The Nextcloud VM (virtual machine appliance), Home/SME Server and scripts for RPi (4-5). Community developed and maintained.
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supersonic
A lightweight and full-featured cross-platform desktop client for self-hosted music servers (by dweymouth)
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deck
🗂 Kanban-style project & personal management tool for Nextcloud, similar to Trello (by nextcloud)
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CodeRabbit
CodeRabbit: AI Code Reviews for Developers. Revolutionize your code reviews with AI. CodeRabbit offers PR summaries, code walkthroughs, 1-click suggestions, and AST-based analysis. Boost productivity and code quality across all major languages with each PR.
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
Nextcloud discussion
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A Look at Firefox Forks
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Deploy Nextcloud on Kubernetes
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OpenCloud 1.0
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Show HN: One year of bewCloud (a simpler Nextcloud alternative)
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25 Google Alternatives every DEV must use in 2025 🤯💥
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Lessons in creating family photos that people want to keep (2018)
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Something is wrong on the Internet Something is wrong on the Internet
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A note from our sponsor - Civic Auth
www.civic.com | 25 Apr 2025
Index
What are some of the best open-source Nextcloud projects? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | Joplin | 48,851 |
| 2 | Nextcloud | 29,286 |
| 3 | matterbridge | 6,936 |
| 4 | all-in-one | 6,644 |
| 5 | floccus | 6,506 |
| 6 | docker | 6,459 |
| 7 | QOwnNotes | 4,959 |
| 8 | android | 4,551 |
| 9 | planify | 4,046 |
| 10 | memories | 3,456 |
| 11 | desktop | 3,223 |
| 12 | NextCloudPi | 2,688 |
| 13 | ios | 2,097 |
| 14 | rssguard | 1,931 |
| 15 | spreed | 1,868 |
| 16 | nextcloud-snap | 1,754 |
| 17 | Windows-11-Guide | 1,560 |
| 18 | OxiCloud | 1,476 |
| 19 | vm | 1,401 |
| 20 | celeste | 1,389 |
| 21 | supersonic | 1,294 |
| 22 | deck | 1,270 |
| 23 | bookmarks | 1,071 |
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Auth in Less Than 5 Minutes
Civic Auth comes with multiple SSO options, optional embedded wallets, and user management — all implemented with just a few lines of code. Start building today.
www.civic.com