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Comparison · Comms
Beeper vs Stalwart
A side-by-side editorial comparison of Beeper and Stalwart — release velocity, themes, recent moves, and the top alternatives to consider.
Beeper vs Stalwart: at a glance
What is Beeper?
Beeper stopped aggregating apps and started merging the people inside them.
The bridge count keeps climbing, with LINE the most recent addition, but the more consequential work is identity-level. Merge Chats collapses conversations with the same person across multiple networks into a single thread. Around that sits a long run of parity work — group chat creation, delete chat, disappearing messages, message requests — closing the gaps that forced users back into native clients.
What is Stalwart?
Stalwart is shipping email's next-generation auth stack while the specs are still in draft.
Stalwart is an all-in-one mail and collaboration server — SMTP, IMAP, JMAP, CalDAV, CardDAV and WebDAV in one binary — releasing every one to two weeks on the 0.16.x line. The last two months read as a standards campaign: DKIM2 and the full DMARCbis set in 0.16.12, VAPID push in 0.16.14, FreeBSD support in 0.16.13, and a run of IMAP extensions (UIDONLY, UIDBATCHES, MESSAGELIMIT/SAVELIMIT) in 0.16.17. Between the additions, most of each release is JMAP conformance repair driven by the jmap-test-suite.
Beeper vs Stalwart: editorial side-by-side
Beeper
3.8COMMS
Beeper stopped aggregating apps and started merging the people inside them.
◆ Current state
The bridge count keeps climbing, with LINE the most recent addition, but the more consequential work is identity-level. Merge Chats collapses conversations with the same person across multiple networks into a single thread. Around that sits a long run of parity work — group chat creation, delete chat, disappearing messages, message requests — closing the gaps that forced users back into native clients.
◆ Where it's heading
Two tracks run in parallel. Parity work is making Beeper safe to use as the only client, and for the major networks it is close to finished. On top of that, the product is starting to add things no native app can do: cross-network chat merging, in-chat AI models, a unified requests folder. The public call for third-party bridges suggests network coverage is increasingly a community responsibility rather than an in-house roadmap item.
◆ Prediction
With conversations merged across networks, unified contacts and cross-network search are the natural follow-ons — the organizing primitive shifts from the chat to the person.
Stalwart
5.0COMMS
Stalwart is shipping email's next-generation auth stack while the specs are still in draft.
◆ Current state
Stalwart is an all-in-one mail and collaboration server — SMTP, IMAP, JMAP, CalDAV, CardDAV and WebDAV in one binary — releasing every one to two weeks on the 0.16.x line. The last two months read as a standards campaign: DKIM2 and the full DMARCbis set in 0.16.12, VAPID push in 0.16.14, FreeBSD support in 0.16.13, and a run of IMAP extensions (UIDONLY, UIDBATCHES, MESSAGELIMIT/SAVELIMIT) in 0.16.17. Between the additions, most of each release is JMAP conformance repair driven by the jmap-test-suite.
◆ Where it's heading
The project is building toward being the reference implementation of the modern mail stack — JMAP first, with the classic protocols held at parity rather than left behind. The fix lists have shifted in character over these eight releases: less "feature does not work", more "spec detail is wrong", which is what a codebase looks like as it converges on conformance. Security and multi-tenancy fixes keep appearing alongside the protocol work, indicating real deployments are exercising the newer subsystems.
◆ Prediction
The next releases most likely track revisions to the drafts already implemented — DKIM2, JMAP push and the calendar drafts are all still moving — rather than adding another protocol surface. Expect continued JMAP conformance fixes until the test suite stops producing them.
Alternatives to Beeper and Stalwart
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 Beeper or Stalwart.
Synapse
Synapse alternates release candidates with security patches on a tight two-week cycle
Canary Mail
Canary Mail ships maintenance across four platform lines; features have gone quiet since April.
Bandwidth
Bandwidth is closing the gaps that used to require a support ticket
Respond.io
respond.io is monetizing AI usage directly while putting an assistant that builds agents in every workspace.
VerneMQ
VerneMQ's 2.2.0 collects a year of cluster and connection fixes into one release.
See all Beeper alternatives → · See all Stalwart alternatives →
Recent activity from Beeper and Stalwart
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agoStalwartIMAP gains UIDONLY, UIDBATCHES and message-limit extensions
- 1d agoBeeperBeeper merges one person's chats across networks ⚡
- 9d agoStalwartJMAP delivery push arrives; strict relays stop rejecting calendar mail
- 15d agoStalwartFix-only release: JMAP semantics and a credential escalation
- 22d agoStalwartVAPID lands for JMAP Web Push
- 1mo agoStalwartFreeBSD support, plus OAuth scopes for IMAP, SMTP and Sieve
- 1mo agoStalwartDKIM2 and the full DMARCbis suite ship in one release ⚡
- 1mo agoBeeperLINE bridge arrives, plus rich call notifications and Raycast
- 5mo agoBeeperMessage Requests folder and encrypted X Chat support
- 8mo agoBeeperGroup chat creation lands, plus experimental in-chat AI
- 9mo agoBeeperDelete chat and disappearing messages reach network parity
- 9mo agoBeeperBuild a Beeper Bridge
Frequently asked questions
What is the difference between Beeper and Stalwart?
They serve adjacent needs but don't currently overlap on shipped themes. Stalwart is currently shipping more aggressively (velocity 5.0 vs 3.8), with 0 editorial sparks in the last 30 days against 1. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is Beeper better than Stalwart?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Stalwart is currently shipping more aggressively (velocity 5.0 vs 3.8), with 0 editorial sparks in the last 30 days against 1. For your specific use case, the alternatives sections above list other Comms products to evaluate alongside.
What are the best alternatives to Beeper?
Top Beeper alternatives in Comms are ranked by recent ship velocity. Browse the "Beeper alternatives" section above for the current picks, or visit /alternatives/beeper for the full list with editorial commentary on each.
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.