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Converse.js vs Delta Chat

A side-by-side editorial comparison of Converse.js and Delta Chat — release velocity, themes, recent moves, and the top alternatives to consider.

Converse.js vs Delta Chat: at a glance

FeatureConverse.jsDelta Chat
SectorCommsComms
Velocity score2.55.0
Sparks · 30d00
Top themesxmpp, omemo-encryption, e2e-usability, browser-clientmessaging, relays, desktop client, channels
Last editorial update1h ago17h ago
WebsiteVisit →Visit →

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.

Read the full Converse.js trajectory →

What is Delta Chat?

Delta Chat is quietly replacing its email identity with relays

Delta Chat desktop v2.65.0 adds pinned messages, message multiselect actions and a System default language option, and hides individual reactions from channel owners. v2.62.0 changed more of the foundation: relays can be removed, the default relay setting is gone, onboarding adds several relays, and email addresses are no longer shown for profiles. Contacts are also no longer shown as verified.

Read the full Delta Chat trajectory →

Converse.js vs Delta Chat: editorial side-by-side

C2.5

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.

D5.0

Delta Chat is quietly replacing its email identity with relays

◆ Current state

Delta Chat desktop v2.65.0 adds pinned messages, message multiselect actions and a System default language option, and hides individual reactions from channel owners. v2.62.0 changed more of the foundation: relays can be removed, the default relay setting is gone, onboarding adds several relays, and email addresses are no longer shown for profiles. Contacts are also no longer shown as verified.

◆ Where it's heading

The project is removing email from what users see and from how they think about identity, with relays taking its place as multi-path infrastructure. Fetching from every relay and sending through the fastest one treats a relay as replaceable, which matters for a federated messenger. Around that, the client keeps closing feature gaps with mainstream messengers through pinning, channel reactions and better group notification handling.

◆ Prediction

Expect further relay management work, as the core notes show this is where the structural change is. Channels are the next most active surface, with reaction privacy already changing there.

Alternatives to Converse.js and Delta 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 Converse.js or Delta Chat.

See all Converse.js alternatives → · See all Delta Chat alternatives →

Recent activity from Converse.js and Delta Chat

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 6d agoDelta ChatPinned messages arrive; channel reactions become anonymous totals
  2. 16d agoConverse.jsRelease 14.0.1 (2026-10-17)
  3. 29d agoDelta ChatMulti-relay onboarding; email addresses leave the profile list
  4. 2mo agoDelta ChatFixes the 2.59.0 unread-sync bug; Arabic, Telugu, Slovenian added
  5. 2mo agoDelta ChatChannel post reactions and experimental Team Profiles
  6. 3mo agoDelta Chatv2.57.0 release preparation
  7. 3mo agoDelta ChatOAuth removed; group member search and command palette added
  8. 4mo agoConverse.jsOMEMO:2 encryption support ships in Converse 14 ⚡
  9. 4mo agoConverse.jsOMEMO bundle self-healing and new PubSub API methods
  10. 4mo agoConverse.jslibomemo.js dependency bump
  11. 4mo agoConverse.jsclient-compress replaced with native browser APIs
  12. 4mo agoConverse.jsFirst beta carrying the OMEMO usability fixes

Frequently asked questions

What is the difference between Converse.js and Delta Chat?

They serve adjacent needs but don't currently overlap on shipped themes. Delta Chat 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 Delta Chat?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Delta Chat 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 Delta Chat?

Top Delta Chat alternatives in Comms are ranked by recent ship velocity. Browse the "Delta Chat alternatives" section above for the current picks, or visit /alternatives/deltachat for the full list with editorial commentary on each.