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Databases · head to head

Cloudinary vs EMQX

Cloudinary logo

Cloudinary

Databases

Image and video API for developers

From
Free
Rated
-
Full reviewWebsite
EMQX logo

EMQX

Databases

Erlang MQTT broker for large IoT fleets, relicensed to BSL with production free use limited to one node

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; EMQX the move to Business Source Licence 1.1 at version 5.9 in May 2025 limits free production use to a single node, so the clustering that justifies choosing EMQX now requires a paid subscription from the second node onward.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Cloudinary and EMQX actually diverge.

Attributes where Cloudinary and EMQX differ
AttributeCloudinaryEMQX
Pricing modelfreemiumPer month by connection and session volume
PlatformsWebLinux, Docker, Kubernetes, Cloud, macOS

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 EMQX does not also cover.

Only in EMQX

  • Erlang clustering
  • MQTT 5.0 and QUIC
  • Rule engine
  • Data integration sinks
  • Session persistence
  • Multi protocol gateways
  • Authentication and authorisation
  • Dashboard and REST API

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 EMQX
  • Generating AI-powered image captions and alternative text at scalenot EMQX
  • Transcoding and optimizing video with automatic subtitle generationnot EMQX
  • Building workflow automation for content teams without codingnot EMQX

EMQX

  • A connected vehicle platform needing millions of persistent MQTT sessions with QUIC for handover across mobile networksnot Cloudinary
  • An industrial operator routing sensor telemetry straight into TimescaleDB or Kafka without writing a consumer servicenot Cloudinary
  • An IoT product team that has outgrown a single Mosquitto instance and needs clustering and shared subscriptionsnot Cloudinary
  • A smart building deployment mixing MQTT, CoAP and LwM2M devices on one brokernot 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)

EMQX

  • The move to Business Source Licence 1.1 at version 5.9 in May 2025 limits free production use to a single node, so the clustering that justifies choosing EMQX now requires a paid subscription from the second node onward.
  • The relicensing arrived in a minor release, which caught users who had pinned to 5.x expecting Apache 2.0 terms and forced legal review of existing deployments.
  • Running an Erlang/OTP cluster well requires operational knowledge most teams do not have, and diagnosing distribution, mnesia or memory issues means learning a runtime you use for nothing else.
  • Enterprise pricing is quoted rather than published for the self-managed edition, so the cost of the clustered configuration you actually need is invisible until you talk to sales.
  • The Serverless tier caps at around a thousand connections and shares infrastructure, which makes it a prototyping tier rather than a genuine small production option.

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

EMQX

Free
  • Open Source single nodeFree
    • BSL 1.1 licence since version 5.9
    • Free production use of one node only
    • All former enterprise features visible
  • ServerlessFree
    • Free monthly quota then pay as you go
    • Up to 1,000 connections
    • 8 by 5 support
  • Dedicated Flex$234/month
    • Single tenant cluster
    • Traffic allowance included
    • 24/7 support
  • Enterprise self-managed$undefined/year
    • Deploy on premises, at the edge or in any cloud
    • Clustering licensed
    • 256 MB maximum message size

Which should you pick?

Choose Cloudinary if

  • You want to start without paying.
Cloudinary review

Choose EMQX if

  • You need erlang clustering.
  • You want to start without paying.
  • You work on Linux, Docker, Kubernetes, Cloud, macOS.
  • You also want mqtt 5.0 and quic.
EMQX review

Questions people ask

Is Cloudinary or EMQX better?
Neither clearly leads. Cloudinary starts at Free and EMQX at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Cloudinary or EMQX?
Cloudinary starts at Free and EMQX at Free.
Does Cloudinary or EMQX run on more platforms?
Cloudinary runs on Web. EMQX runs on Linux, Docker, Kubernetes, Cloud, macOS.
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 EMQX is typically brought in for.
What can Cloudinary do that EMQX cannot?
EMQX covers Erlang clustering, MQTT 5.0 and QUIC, Rule engine, Data integration sinks.

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
EMQX: Is EMQX still open source?

Not in the OSI sense since version 5.9. It is source-available under Business Source Licence 1.1, reverting to Apache 2.0 four years after each release.

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
EMQX: Can I run a free cluster?

No. The additional use grant permits free production use of one node; clustering requires a commercial licence.

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
EMQX: What changed for existing users?

Community and enterprise editions merged, so all features are now visible, but the licence terms tightened in the same minor release.

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
EMQX: Which version is still Apache 2.0?

Releases before 5.9 remain under Apache 2.0, and each BSL release converts to Apache 2.0 four years after publication.

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