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Comparison · DevOps

Convex vs FusionAuth

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

Convex vs FusionAuth: at a glance

FeatureConvexFusionAuth
SectorDevOpsDevOps
Velocity score2.52.5
Sparks · 30d00
Top themesfunding, reactive-backend, enterprise, agentsidentity, oauth, self-hosted, breaking-changes
Last editorial update14d ago14h ago
WebsiteVisit →Visit →

What is Convex?

Convex raised $57M on the argument that agents need a backend built for them.

The feed is thin on releases and heavy on company milestones. A $57M Series B led by Insight Partners is the newest item, pitched around developers and their agents writing software together and needing a backend that keeps up. The substantive product news remains April's Convex for Enterprise, which added the compliance and scale posture the platform previously lacked; since then the feed carries a conference announcement and open-source recaps rather than shipped capability.

Read the full Convex trajectory →

What is FusionAuth?

FusionAuth's feed publishes version numbers; whether they carry news is a coin flip.

FusionAuth releases every four to eight weeks, but the changelog entries are inconsistent: three of the last six carry nothing but an upgrade-guide link, while the ones that do have notes describe substantial standards and security work. The last documented release, 1.67.0, added RFC 8707 resource scoping so tokens issued by OAuth endpoints can be bound to specific resources. Before it, two consecutive releases tightened API key requirements — 1.65.0 for installation-wide endpoints, 1.66.0 extending the same rule to webhooks it had missed.

Read the full FusionAuth trajectory →

Convex vs FusionAuth: editorial side-by-side

C
Convex
DEVOPS
2.5

Convex raised $57M on the argument that agents need a backend built for them.

◆ Current state

The feed is thin on releases and heavy on company milestones. A $57M Series B led by Insight Partners is the newest item, pitched around developers and their agents writing software together and needing a backend that keeps up. The substantive product news remains April's Convex for Enterprise, which added the compliance and scale posture the platform previously lacked; since then the feed carries a conference announcement and open-source recaps rather than shipped capability.

◆ Where it's heading

Convex is funding and positioning ahead of shipping. The enterprise release established the upmarket motion and the funding narrative attaches it to agent-written code, but nothing in the visible window shows the agent-facing product surface that framing implies. Whether that framing is real or aspirational is not something this feed answers yet.

◆ Prediction

With the round announced around agent workloads, the next substantive release is most likely on that surface, though the entries here give no detail on what form it takes.

F2.5

FusionAuth's feed publishes version numbers; whether they carry news is a coin flip.

◆ Current state

FusionAuth releases every four to eight weeks, but the changelog entries are inconsistent: three of the last six carry nothing but an upgrade-guide link, while the ones that do have notes describe substantial standards and security work. The last documented release, 1.67.0, added RFC 8707 resource scoping so tokens issued by OAuth endpoints can be bound to specific resources. Before it, two consecutive releases tightened API key requirements — 1.65.0 for installation-wide endpoints, 1.66.0 extending the same rule to webhooks it had missed.

◆ Where it's heading

Where the notes are readable, the direction is standards conformance and closing security defaults that were too permissive, accepting breaking changes to do it. FusionAuth has been willing to make an enabled identity provider's linking strategy immutable and to require global API keys where tenant keys used to work — changes that break running deployments in exchange for a tighter default. What cannot be read from this feed is where the last two releases fit, because they shipped without notes.

◆ Prediction

The pattern of hardening endpoint-by-endpoint suggests further scope narrowing wherever tenant-level keys still reach installation-level effects. Any read on 1.68.0 and 1.69.0 would be guesswork — the entries carry no content.

Alternatives to Convex and FusionAuth

Other DevOps 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 Convex or FusionAuth.

See all Convex alternatives → · See all FusionAuth alternatives →

Recent activity from Convex and FusionAuth

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

  1. 14d agoConvexConvex raises a $57M Series B
  2. 15d agoFusionAuthFusionAuth 1.69.0 ships with no published release notes
  3. 1mo agoFusionAuthFusionAuth 1.68.0 (Intelligent Kamfa), notes not published
  4. 2mo agoFusionAuthFusionAuth 1.67.1 patch, no notes published
  5. 2mo agoFusionAuthRFC 8707 OAuth resource scoping for tokens
  6. 3mo agoConvexWe're organizing a conference
  7. 3mo agoFusionAuthWebhook endpoints now require global API keys (breaking)
  8. 3mo agoFusionAuthBreaking: IdP linking strategy locked, tenant-key access narrowed
  9. 4mo agoConvexConvex's 2025 open-source contributions, recapped
  10. 4mo agoConvexConvex for Enterprise (and updates to everything else)
  11. 6mo agoConvexJust landed in Europe
  12. 6mo agoConvexConvex Open Source Update

Frequently asked questions

What is the difference between Convex and FusionAuth?

They serve adjacent needs but don't currently overlap on shipped themes. Convex and FusionAuth are shipping at a similar cadence (velocity 2.5 vs 2.5, both within Sparkpulse's "active" band). See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is Convex better than FusionAuth?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Convex and FusionAuth are shipping at a similar cadence (velocity 2.5 vs 2.5, both within Sparkpulse's "active" band). For your specific use case, the alternatives sections above list other DevOps products to evaluate alongside.

What are the best alternatives to Convex?

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

What are the best alternatives to FusionAuth?

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