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Comparison · Collab
Komga vs Mattermost
A side-by-side editorial comparison of Komga and Mattermost — release velocity, themes, recent moves, and the top alternatives to consider.
Shared themes:self-hosted
Komga vs Mattermost: at a glance
What is Komga?
Komga patches 1.30 with security headers while the NextUI beta settles.
Komga ships every one to two weeks, and nearly all feature work lands in NextUI, the rewritten web interface at /next. 1.30.0 brings its fourth beta: editing several series or books at once, reordering read lists and collections, and persisted filters, sort and library sub-views. HTTP sessions now default to database storage. The patches in between fixed page counts, KOReader hashes and NextUI navigation.
What is Mattermost?
Mattermost v12.1 puts bots and burn-after-reading messages under the same access rules.
Mattermost v12 shipped in parts: agents limited to the requesting user's access, Cross Guard for transfers across security domains, and user, device and channel attributes in access policy. A November 9 partnership pairs v12 with Arqit's quantum-safe device trust. v12.1 on November 13 extends attribute-based access control to bot accounts and to Burn-on-Read permissions, and Desktop v6.4 fixes Boards on subpath deployments.
Komga vs Mattermost: editorial side-by-side
Komga
5.0COLLAB
Komga patches 1.30 with security headers while the NextUI beta settles.
◆ Current state
Komga ships every one to two weeks, and nearly all feature work lands in NextUI, the rewritten web interface at /next. 1.30.0 brings its fourth beta: editing several series or books at once, reordering read lists and collections, and persisted filters, sort and library sub-views. HTTP sessions now default to database storage. The patches in between fixed page counts, KOReader hashes and NextUI navigation.
◆ Where it's heading
Each NextUI beta closes a gap with the old interface: metadata editing in the second, contextual navigation in the third, bulk editing and list organization in the fourth. Notable Entities metadata in 1.29 already exists only in NextUI, so the new interface is becoming the place where features appear first.
◆ Prediction
The remaining gaps look small enough that a later 1.3x release may make NextUI the default interface. Until then, expect more betas every few weeks with patch releases between them.
Mattermost
6.3COLLAB
Mattermost v12.1 puts bots and burn-after-reading messages under the same access rules.
◆ Current state
Mattermost v12 shipped in parts: agents limited to the requesting user's access, Cross Guard for transfers across security domains, and user, device and channel attributes in access policy. A November 9 partnership pairs v12 with Arqit's quantum-safe device trust. v12.1 on November 13 extends attribute-based access control to bot accounts and to Burn-on-Read permissions, and Desktop v6.4 fixes Boards on subpath deployments.
◆ Where it's heading
Each release closes another gap in one policy model for who and what can see a message: people, devices, channels, and now automation accounts and ephemeral messages. The audience stays defence and regulated buyers, and point releases are filling in v12 rather than starting new lines.
◆ Prediction
Further v12.x releases likely apply the same attribute rules to more objects, such as files, plugins or AI agent actions, following the pattern of v12.1.
Alternatives to Komga and Mattermost
Other Collab products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Komga or Mattermost.
Nextcloud
Nextcloud's November patches lean on preview speed and sharing fixes across three branches.
Asana
Asana lets Division admins run their own custom roles, on top Enterprise plans only.
Double
Double turns a recorded Chrome session into an agent that repeats the task.
SiYuan
SiYuan 3.8.11 alphas add freeform mind maps and plugin snapshots right after 3.8.10.
Hive
Hive turns reporting into a planning tool: shared inputs, grouped values, per-person drill-downs.
See all Komga alternatives → · See all Mattermost alternatives →
Recent activity from Komga and Mattermost
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 23h agoMattermostMattermost v12.1: Control That Goes Beyond On and Off
- 4d agoKomgaSecurity headers and a concurrency fix
- 4d agoMattermostYour MFA Isn't Phishing-Resistant. Here's What Is, and What the Deployment Decision Actually Involves
- 4d agoMattermostMattermost v12 pairs with Arqit for quantum-safe edge deployments
- 9d agoMattermostMattermost v12 adds device and channel attributes to access policy
- 10d agoKomgaFourth NextUI beta adds bulk editing and saved filters
- 17d agoKomgaPage count and KOReader hash fixes
- 18d agoMattermostMattermost v12 Cross Guard: managed cross-domain transfers
- 21d agoMattermostMattermost v12: Agents Are Doing the Work. Now Control What They Can See. ⚡
- 1mo agoKomgaRelease 1.29.1
- 1mo agoKomgaRelease 1.29.0
- 1mo agoKomgaNextUI login, sorting and search fixes
Frequently asked questions
What is the difference between Komga and Mattermost?
Both compete on the same themes — self-hosted — within Collab. Mattermost is currently shipping more aggressively (velocity 6.3 vs 5.0), with 1 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is Komga better than Mattermost?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Mattermost is currently shipping more aggressively (velocity 6.3 vs 5.0), with 1 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Collab products to evaluate alongside.
What are the best alternatives to Komga?
Top Komga alternatives in Collab are ranked by recent ship velocity. Browse the "Komga alternatives" section above for the current picks, or visit /alternatives/komga for the full list with editorial commentary on each.
What are the best alternatives to Mattermost?
Top Mattermost alternatives in Collab are ranked by recent ship velocity. Browse the "Mattermost alternatives" section above for the current picks, or visit /alternatives/mattermost for the full list with editorial commentary on each.