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Comparison · Comms

Misskey vs Synapse

A side-by-side editorial comparison of Misskey and Synapse — release velocity, themes, recent moves, and the top alternatives to consider.

Misskey vs Synapse: at a glance

FeatureMisskeySynapse
SectorCommsComms
Velocity score6.35.0
Sparks · 30d00
Top themesfediverse, self-hosting, dependency-shedding, content-moderationmatrix, homeserver, release-candidates, link-only-notes
Last editorial update6d ago22h ago
WebsiteVisit →Visit →

What is Misskey?

Misskey deleted its bundled machine-learning stack and made moderation someone else's service to run.

The visible history is essentially one release train, nine tags from 2026.7.0-beta.0 through the 2026.7.0 release, plus the first alpha of 2026.8.0. The defining change is that sensitive-media detection no longer runs inside Misskey: nsfwjs, TensorFlow.js, and the bundled NSFW model are gone from the codebase, replaced by HTTP calls to a separate sensitive-detector service. Operators who rely on the feature must stand that service up and point the control panel at it; if they do not, detection stops and all media is treated as non-sensitive.

Read the full Misskey trajectory →

What is Synapse?

Synapse publishes only a changelog link, so its feed records releases without describing them

Synapse is the reference Matrix homeserver, and every entry captured here has the same 80-character body: a link to CHANGES.md on the release branch. Release candidates and finals alternate on a regular rhythm — 1.158, 1.159, and now a second candidate for 1.160 — but no note in this feed says what any of them contain. Judging any individual release from this source is impossible by construction.

Read the full Synapse trajectory →

Misskey vs Synapse: editorial side-by-side

M
Misskey
COMMS
6.3

Misskey deleted its bundled machine-learning stack and made moderation someone else's service to run.

◆ Current state

The visible history is essentially one release train, nine tags from 2026.7.0-beta.0 through the 2026.7.0 release, plus the first alpha of 2026.8.0. The defining change is that sensitive-media detection no longer runs inside Misskey: nsfwjs, TensorFlow.js, and the bundled NSFW model are gone from the codebase, replaced by HTTP calls to a separate sensitive-detector service. Operators who rely on the feature must stand that service up and point the control panel at it; if they do not, detection stops and all media is treated as non-sensitive.

◆ Where it's heading

The direction is a smaller, more conventional Node application with its heavy and specialized dependencies pushed outside the process. The same release raises the Node floor to 22.22.2, 24.17.0 and 26.4.0, moves the Docker image to Node 26 on Debian trixie, and inherits a sharp requirement that breaks x86_64 CPUs without SSE4.2. The rebuilt logging layer points the same way, with one-line JSON output, per-domain levels, automatic credential redaction, and Sentry trace correlation, which is what an operator using standard tooling wants rather than what a self-contained appliance would ship.

◆ Prediction

Node 22 support is already flagged for removal, so the next train should drop it. Whether OpenTelemetry returns after being pulled between beta.6 and the release candidate is not something these entries settle.

S
Synapse
COMMS
5.0

Synapse publishes only a changelog link, so its feed records releases without describing them

◆ Current state

Synapse is the reference Matrix homeserver, and every entry captured here has the same 80-character body: a link to CHANGES.md on the release branch. Release candidates and finals alternate on a regular rhythm — 1.158, 1.159, and now a second candidate for 1.160 — but no note in this feed says what any of them contain. Judging any individual release from this source is impossible by construction.

◆ Where it's heading

What the feed does establish is process. Each minor gets at least one release candidate before the final, candidates and finals are tagged days apart, and the cadence has held steady across three minors. That is a project shipping predictably. Anything about federation, performance or spec support would have to come from the linked changelog, which the feed never inlines.

◆ Prediction

On the established rhythm, 1.160.0 final should follow this second candidate within about a week. The notes will stay link-only unless the release tooling changes.

Alternatives to Misskey and Synapse

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 Misskey or Synapse.

See all Misskey alternatives → · See all Synapse alternatives →

Recent activity from Misskey and Synapse

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

  1. 1d agoSynapseSynapse 1.160.0rc2: release notes not published to the feed
  2. 8d agoSynapseSynapse 1.160.0rc1: release notes not published to the feed
  3. 15d agoSynapseSynapse 1.159.0 ships with a link-only changelog entry
  4. 18d agoMisskeyImage viewer gains a pixel-art zoom mode
  5. 22d agoSynapseSynapse 1.159.0rc1: release notes not published to the feed
  6. 29d agoSynapseSynapse 1.158.0 ships with a link-only changelog entry
  7. 1mo agoMisskeyNSFW detection moves out of core to an external service
  8. 1mo agoSynapseSynapse 1.158.0rc1: release notes not published to the feed
  9. 1mo agoMisskeyRelease candidate drops OpenTelemetry from 2026.7.0
  10. 1mo agoMisskeyImage viewer rebuilt and upload preview added
  11. 1mo agoMisskeyFixes account creation API for non-initial accounts
  12. 1mo agoMisskey2026.7.0-beta.4

Frequently asked questions

What is the difference between Misskey and Synapse?

They serve adjacent needs but don't currently overlap on shipped themes. Misskey 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 Misskey better than Synapse?

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

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

What are the best alternatives to Synapse?

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