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Comparison · Comms
Stalwart vs Rocket.Chat
A side-by-side editorial comparison of Stalwart and Rocket.Chat — release velocity, themes, recent moves, and the top alternatives to consider.
Shared themes:self-hosted
Stalwart vs Rocket.Chat: at a glance
What is Stalwart?
Stalwart's weekly releases have turned from new standards to correctness fixes.
Stalwart's releases since v0.16.20 are dominated by long Fixed lists across IMAP, JMAP, MTA, DMARC and iTIP. Additions have been small: a PowerDNS provider in 0.16.24, sd_notify and JMAP mailbox behavior in 0.16.26. The most consequential repair is a RocksDB bug in 0.16.26 that rewrote every stored blob on each compaction of the blobs column family, about once per 128MB of new mail.
What is Rocket.Chat?
Rocket.Chat 9.0 reaches rc.8 with a migration fix as candidates shrink to single patches.
The 9.0 candidate line opened on 27 October with a licensing change: LDAP, SAML and Custom OAuth now require a premium plan. Since rc.4 the candidates have been fixes, and rc.8 on 7 November carries a single one: servers that started during another server's database migration no longer keep stale settings until restart. On 6 November 8.9.1 LTS backported the 9.0 load fixes plus a security hotfix.
Stalwart vs Rocket.Chat: editorial side-by-side
Stalwart
5.0COMMS
Stalwart's weekly releases have turned from new standards to correctness fixes.
◆ Current state
Stalwart's releases since v0.16.20 are dominated by long Fixed lists across IMAP, JMAP, MTA, DMARC and iTIP. Additions have been small: a PowerDNS provider in 0.16.24, sd_notify and JMAP mailbox behavior in 0.16.26. The most consequential repair is a RocksDB bug in 0.16.26 that rewrote every stored blob on each compaction of the blobs column family, about once per 128MB of new mail.
◆ Where it's heading
After the SCIM v2 release in August, the project has shifted from extending coverage to making existing coverage hold up under real use. The bug reports now describe specific interoperability cases, such as Apple Calendar duplicates and DMARC report formatting, which suggests production traffic is driving the queue. The weekly cadence itself has not changed.
◆ Prediction
Expect more weekly fix releases on the same pattern. The entries show no sign of the next major capability, so its timing is unclear.
Rocket.Chat
6.3COMMS
Rocket.Chat 9.0 reaches rc.8 with a migration fix as candidates shrink to single patches.
◆ Current state
The 9.0 candidate line opened on 27 October with a licensing change: LDAP, SAML and Custom OAuth now require a premium plan. Since rc.4 the candidates have been fixes, and rc.8 on 7 November carries a single one: servers that started during another server's database migration no longer keep stale settings until restart. On 6 November 8.9.1 LTS backported the 9.0 load fixes plus a security hotfix.
◆ Where it's heading
9.0 is in stabilization: each candidate is smaller than the last, and the load fixes are being carried to the LTS line rather than held for the major. Native LiveKit video is being promoted step by step, from alpha to beta and now as the named default provider option.
◆ Prediction
With rc.7 down to a handful of fixes, 9.0.0 GA is the next likely release, followed by further 8.9.x LTS patches carrying the same fixes.
Alternatives to Stalwart and Rocket.Chat
Other Comms 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 Stalwart or Rocket.Chat.
Twilio
Twilio's voice AI stops cutting callers off mid-sentence, using its own turn-taking model.
Salesmsg
Salesmsg adds call-back requests and a one-click Emergency Stop for all outbound texts.
Element
Element 1.12.35 follows the call picture-in-picture release with one desktop storage fix.
Krisp
Krisp moves call transcripts and live captions to cloud transcription in KrispCX 2.84.4.
Misskey
Misskey 2026.11 ships: a leaner start script, and Node.js 22 no longer boots.
See all Stalwart alternatives → · See all Rocket.Chat alternatives →
Recent activity from Stalwart and Rocket.Chat
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 7d agoRocket.Chat9.0 rc.8: settings refresh after concurrent migrations
- 8d agoRocket.Chat8.9.1 LTS: load fixes from 9.0 plus a security hotfix
- 8d agoRocket.Chat9.0 rc.7: client memory leak fixed, LiveKit video moves to beta
- 9d agoRocket.Chat9.0 rc.6: Matrix federation auth header fix
- 9d agoRocket.Chat9.0 rc.5: removed-license features shut off, OAuth codes redacted
- 10d agoRocket.Chat9.0 rc.4: notifications, presence and startup fixed under load
- 26d agoStalwartv0.16.27: IMAP SEARCH RETURN and iTIP time zone fixes
- 1mo agoStalwartv0.16.26 fixes RocksDB rewriting every blob on compaction
- 1mo agoStalwartv0.16.25: JMAP MaskedEmail and Autodiscover fixes
- 1mo agoStalwartv0.16.24: PowerDNS provider and phishing list matching fix
- 1mo agoStalwartv0.16.23: nested list delivery and lost DSN fixes
- 2mo agoStalwartv0.16.22: STARTTLS session reset and DMARC result fixes
Frequently asked questions
What is the difference between Stalwart and Rocket.Chat?
Both compete on the same themes — self-hosted — within Comms. Rocket.Chat is currently shipping more aggressively (velocity 6.3 vs 5.0), with 0 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 Stalwart better than Rocket.Chat?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Rocket.Chat is currently shipping more aggressively (velocity 6.3 vs 5.0), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Comms products to evaluate alongside.
What are the best alternatives to Stalwart?
Top Stalwart alternatives in Comms are ranked by recent ship velocity. Browse the "Stalwart alternatives" section above for the current picks, or visit /alternatives/stalwart for the full list with editorial commentary on each.
What are the best alternatives to Rocket.Chat?
Top Rocket.Chat alternatives in Comms are ranked by recent ship velocity. Browse the "Rocket.Chat alternatives" section above for the current picks, or visit /alternatives/rocketchat for the full list with editorial commentary on each.