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Databases · head to head

Cloudinary vs Solace PubSub+

Cloudinary logo

Cloudinary

Databases

Image and video API for developers

From
Free
Rated
-
Full reviewWebsite
Solace PubSub+ logo

Solace PubSub+

Databases

Multi-protocol event broker sold as software, cloud service or a hardware appliance

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Cloudinary free plan includes only 25 monthly credits and is limited to 3 users and 1 account; Solace PubSub+ no pricing is published at any tier, so evaluation requires a sales engagement before you can even judge whether it is in budget, and broker tier sizing determines cost in ways buyers frequently get wrong.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Cloudinary and Solace PubSub+ actually diverge.

Attributes where Cloudinary and Solace PubSub+ differ
AttributeCloudinarySolace PubSub+
Pricing modelfreemiumquote
PlatformsWebLinux, Docker, Kubernetes, Cloud, Hardware appliance

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Databases).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Cloudinary

Nothing recorded that Solace PubSub+ does not also cover.

Only in Solace PubSub+

  • Multi-protocol broker
  • Dynamic message routing
  • Hardware appliance
  • Event Portal
  • Guaranteed delivery
  • Mission Control
  • Topic hierarchies and wildcards
  • Kafka and MQ bridging

What people use each for

The jobs each tool is most often brought in to do.

Cloudinary

  • Automating image transformations and delivery across multiple devicesnot Solace PubSub+
  • Generating AI-powered image captions and alternative text at scalenot Solace PubSub+
  • Transcoding and optimizing video with automatic subtitle generationnot Solace PubSub+
  • Building workflow automation for content teams without codingnot Solace PubSub+

Solace PubSub+

  • A bank building an event mesh across regions where a Java JMS application and an MQTT mobile client must share the same topic spacenot Cloudinary
  • An exchange or trading platform with a latency budget that needs the hardware appliance rather than a software brokernot Cloudinary
  • An airline distributing operational events to ground systems, aircraft and partner APIs over different protocolsnot Cloudinary
  • A manufacturer bridging factory MQTT telemetry into an enterprise Kafka estate without writing translation servicesnot Cloudinary

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Cloudinary

  • Free plan includes only 25 monthly credits and is limited to 3 users and 1 account
  • Enterprise plan pricing is custom; rates not published
  • Monthly billing is more expensive than annual; yearly plan is $89/month for Plus ($224/month for Advanced)

Solace PubSub+

  • No pricing is published at any tier, so evaluation requires a sales engagement before you can even judge whether it is in budget, and broker tier sizing determines cost in ways buyers frequently get wrong.
  • The free Standard edition has hard capacity and support limits, which makes it useful for development but means any real deployment triggers a commercial negotiation.
  • The proprietary SMF protocol gives the best performance and feature coverage, so teams that lean on it acquire real switching costs even though open protocols are supported.
  • Operating a self-managed high availability broker pair with disaster recovery is a specialist task, and Solace expertise is scarce in the hiring market compared with Kafka skills.
  • Event Portal and Mission Control are licensed as part of platform packages, so the governance tooling that makes an event mesh manageable is not simply included with the broker.

Pricing, plan by plan

Cloudinary

Free
  • FreeFree
    • Upload widget
    • API
    • Search
  • Plus$99/month
    • All Free features
    • S3 bucket backup
    • Auto-tagging search
  • Advanced$249/month
    • All Plus features
    • Custom domain (CNAME)
    • Optional HTTPS SSL
  • Enterprise$null/custom
    • Multi-CDN infrastructure
    • Enterprise SLAs
    • Designated success manager

Solace PubSub+

Free
  • Software Event Broker StandardFree
    • Free for production within capacity limits
    • Single node, capped connections and queues
    • No vendor support
  • Solace Cloud$undefined/year
    • Managed brokers in tiers from ENT-250 to ENT-100K
    • Foundation, Accelerate and Scale platform packages
    • Fixed subscription or annual consumption drawdown
  • Software Enterprise self-managed$undefined/year
    • Deploy in your own Kubernetes, VMs or data centre
    • High availability and disaster recovery
    • Support with SLA
  • Hardware appliance$undefined/year
    • Purpose-built appliance with FPGA message offload
    • Deterministic low latency
    • Sold with support contract

Which should you pick?

Choose Cloudinary if

  • You want to start without paying.
Cloudinary review

Choose Solace PubSub+ if

  • You need multi-protocol broker.
  • You want to start without paying.
  • You work on Linux, Docker, Kubernetes, Cloud, Hardware appliance.
  • You also want dynamic message routing.
Solace PubSub+ review

Questions people ask

Is Cloudinary or Solace PubSub+ better?
Neither clearly leads. Cloudinary starts at Free and Solace PubSub+ at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Cloudinary or Solace PubSub+?
Cloudinary starts at Free and Solace PubSub+ at Free.
Does Cloudinary or Solace PubSub+ run on more platforms?
Cloudinary runs on Web. Solace PubSub+ runs on Linux, Docker, Kubernetes, Cloud, Hardware appliance.
Can I use Cloudinary for free?
Both have a free tier, so you can try either at no cost before committing.
What is Cloudinary best used for?
Cloudinary is most often used for automating image transformations and delivery across multiple devices, generating ai-powered image captions and alternative text at scale, transcoding and optimizing video with automatic subtitle generation, building workflow automation for content teams without coding. Of those, automating image transformations and delivery across multiple devices and generating ai-powered image captions and alternative text at scale are not what Solace PubSub+ is typically brought in for.
What can Cloudinary do that Solace PubSub+ cannot?
Solace PubSub+ covers Multi-protocol broker, Dynamic message routing, Hardware appliance, Event Portal.

Answered from the vendors’ own pages

Cloudinary: What are included in Cloudinary's free plan?

Cloudinary's free plan includes upload widget, API access, search, remote fetch, auto-backup, revision tracking, image and video transformations, video transcoding, and CDN delivery. The free plan includes 25 monthly credits, 3 users, and 1 account with community support.

Source
Solace PubSub+: Is there a free version of Solace?

Yes, the Standard edition of the software event broker is free for production within capacity limits, with no vendor support.

Cloudinary: How does Cloudinary's credit system work?

Cloudinary credits measure usage: one credit equals 1,000 transformations, or 1 GB managed storage, or 1 GB image bandwidth, or 2 GB video bandwidth. The free plan grants 25 credits per month, Plus plan 225 monthly credits, and Advanced plan 600 monthly credits.

Source
Solace PubSub+: Does Solace publish prices?

No. Cloud, software and appliance are all quoted, based on broker tier from ENT-250 to ENT-100K and licensing model.

Cloudinary: What is the difference between Cloudinary Plus and Advanced plans?

Plus plan costs $99/month (or $89/month annually) and includes S3 backup, auto-tagging, and expedited support for up to 3 users across 2 accounts with 225 credits. Advanced is $249/month ($224/month annually), adds custom domain (CNAME) and SSL options for 5 users across 3 accounts with 600 credits.

Source
Solace PubSub+: Why buy an appliance in 2026?

Deterministic low latency with message processing offloaded to hardware, which matters in capital markets and little elsewhere.

Cloudinary: Does Cloudinary offer annual billing discounts?

Yes. Cloudinary's annual billing provides discounts: Plus plan is $89/month when billed yearly (versus $99/month monthly), and Advanced plan is $224/month when billed yearly (versus $249/month monthly).

Source
Solace PubSub+: Can it replace Kafka?

Not for log retention and stream reprocessing. It is stronger at multi-protocol routing and guaranteed delivery, and the two are often bridged.

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