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Comparison · Collab
Passbolt vs Mattermost
A side-by-side editorial comparison of Passbolt and Mattermost — release velocity, themes, recent moves, and the top alternatives to consider.
Passbolt vs Mattermost: at a glance
What is Passbolt?
Passbolt 5.18 puts secure notes and custom fields into Quick Access.
Passbolt 5.18 "Superstylin" adds two themes and brings Secure Notes and Custom Fields into Quick Access, where they can be searched, previewed and copied, suggested by URL and read in Offline Mode. It also improves autofill on high-resolution displays and speeds up sharing. The previous release, 5.17, added passkeys as a second factor and rebuilt autofill detection; 5.16 brought a read-only Offline Mode in beta.
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.
Passbolt vs Mattermost: editorial side-by-side
Passbolt
5.0COLLAB
Passbolt 5.18 puts secure notes and custom fields into Quick Access.
◆ Current state
Passbolt 5.18 "Superstylin" adds two themes and brings Secure Notes and Custom Fields into Quick Access, where they can be searched, previewed and copied, suggested by URL and read in Offline Mode. It also improves autofill on high-resolution displays and speeds up sharing. The previous release, 5.17, added passkeys as a second factor and rebuilt autofill detection; 5.16 brought a read-only Offline Mode in beta.
◆ Where it's heading
The last three releases have moved from security controls towards daily convenience: offline access, better autofill, and now every resource type in the browser extension's quick view. The passwordless login the 5.17 notes pointed to has not shipped yet.
◆ Prediction
Expect more autofill and Quick Access work, and passkey sign-in without a password as the next major step the 5.17 notes promised.
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 Passbolt 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 Passbolt 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 Passbolt alternatives → · See all Mattermost alternatives →
Recent activity from Passbolt and Mattermost
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 23h agoMattermostMattermost v12.1: Control That Goes Beyond On and Off
- 1d agoPassbolt5.18 adds themes and secure notes in Quick Access
- 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
- 18d agoMattermostMattermost v12 Cross Guard: managed cross-domain transfers
- 21d agoMattermostMattermost v12: Agents Are Doing the Work. Now Control What They Can See. ⚡
- 24d agoPassbolt5.17 adds passkeys for MFA and a rebuilt autofill engine
- 1mo agoPassbolt5.16 adds read-only Offline Mode in beta
- 2mo agoPassbolt5.15 adds database sessions and closes shared-tag permission bypasses
- 3mo agoPassbolt5.14.3 limits the permission dialog to actual secret changes
- 3mo agoPassbolt5.14 adds confirmation prompts before shared-resource edits
Frequently asked questions
What is the difference between Passbolt and Mattermost?
They serve adjacent needs but don't currently overlap on shipped themes. 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 Passbolt 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 Passbolt?
Top Passbolt alternatives in Collab are ranked by recent ship velocity. Browse the "Passbolt alternatives" section above for the current picks, or visit /alternatives/passbolt 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.