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Comparison · Comms
Converse.js vs Roundcube
A side-by-side editorial comparison of Converse.js and Roundcube — release velocity, themes, recent moves, and the top alternatives to consider.
Shared themes:security
Converse.js vs Roundcube: at a glance
What is Converse.js?
Converse.js 14.0.1 fixes OMEMO:2 group decryption broken by Chromium 153.
Converse.js shipped 14.0.0 in June with OMEMO:2, the current revision of XMPP's end-to-end encryption, plus fixes that make encryption state and errors visible. 14.0.1 in October fixes OMEMO:2 group messages that stopped decrypting in Chromium 153, a bug that also skipped a sender check.
What is Roundcube?
Roundcube's October release patches 13 more holes on both branches at once.
Roundcube shipped 1.7.5 and 1.6.20 on 19 October, again as a matched pair, fixing IMAP command injection via the _uid parameter, mail header injection in bounce and reply paths, a session object-injection primitive, ImageMagick limits bypasses, an SSRF filter bypass via NAT64 and several remote-content blocking bypasses. It is the fifth paired security release since June.
Converse.js vs Roundcube: editorial side-by-side
Converse.js
2.5COMMS
Converse.js 14.0.1 fixes OMEMO:2 group decryption broken by Chromium 153.
◆ Current state
Converse.js shipped 14.0.0 in June with OMEMO:2, the current revision of XMPP's end-to-end encryption, plus fixes that make encryption state and errors visible. 14.0.1 in October fixes OMEMO:2 group messages that stopped decrypting in Chromium 153, a bug that also skipped a sender check.
◆ Where it's heading
The project is in a stabilisation phase on the 14 line, with encryption correctness as the main concern. Releases are months apart.
◆ Prediction
Expect further 14.0.x patches for encryption and browser compatibility; no next major is signalled.
Roundcube
5.0COMMS
Roundcube's October release patches 13 more holes on both branches at once.
◆ Current state
Roundcube shipped 1.7.5 and 1.6.20 on 19 October, again as a matched pair, fixing IMAP command injection via the _uid parameter, mail header injection in bounce and reply paths, a session object-injection primitive, ImageMagick limits bypasses, an SSRF filter bypass via NAT64 and several remote-content blocking bypasses. It is the fifth paired security release since June.
◆ Where it's heading
Monthly security releases on both the 1.7 and LTS 1.6 lines have become the product's main output, driven by outside researchers. Several fixes revisit earlier ones, such as CSS-escape blocking bypasses fixed 'again', which suggests the content-sanitising code is still being mapped.
◆ Prediction
Another paired 1.7.x and 1.6.x security release in about a month is the pattern; feature work isn't visible in these entries.
Alternatives to Converse.js and Roundcube
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 Converse.js or Roundcube.
Element iOS
Element Classic now asks its own users to move to Element X, if their server opts in.
Brosix
Brosix follows its communities launch with a referral push and a private-room how-to.
VerneMQ
VerneMQ follows its year-in-the-making 2.2.0 with a quick round of subscription fixes.
Session
Session survived its funding scare; now Pro is on hold and Protocol v2 is the bet.
Misskey
Misskey moves to Sentry v11 and keeps shipping security fixes in its monthly releases.
See all Converse.js alternatives → · See all Roundcube alternatives →
Recent activity from Converse.js and Roundcube
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 14d agoRoundcubeRoundcube Webmail 1.7.5
- 14d agoRoundcubeRoundcube Webmail 1.6.20
- 16d agoConverse.jsRelease 14.0.1 (2026-10-17)
- 1mo agoRoundcubeRoundcube Webmail 1.7.4
- 1mo agoRoundcubeRoundcube Webmail 1.6.19
- 2mo agoRoundcubeRoundcube Webmail 1.7.3
- 2mo agoRoundcubeRoundcube Webmail 1.6.18
- 4mo agoConverse.jsOMEMO:2 encryption support ships in Converse 14 ⚡
- 4mo agoConverse.jsOMEMO bundle self-healing and new PubSub API methods
- 4mo agoConverse.jslibomemo.js dependency bump
- 4mo agoConverse.jsclient-compress replaced with native browser APIs
- 4mo agoConverse.jsFirst beta carrying the OMEMO usability fixes
Frequently asked questions
What is the difference between Converse.js and Roundcube?
Both compete on the same themes — security — within Comms. Roundcube is currently shipping more aggressively (velocity 5.0 vs 2.5), 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 Converse.js better than Roundcube?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Roundcube is currently shipping more aggressively (velocity 5.0 vs 2.5), 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 Converse.js?
Top Converse.js alternatives in Comms are ranked by recent ship velocity. Browse the "Converse.js alternatives" section above for the current picks, or visit /alternatives/converse-js for the full list with editorial commentary on each.
What are the best alternatives to Roundcube?
Top Roundcube alternatives in Comms are ranked by recent ship velocity. Browse the "Roundcube alternatives" section above for the current picks, or visit /alternatives/roundcube for the full list with editorial commentary on each.