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Maps · head to head

Cesium ion vs CesiumJS

Cesium ion logo

Cesium ion

Maps

Hosted 3D geospatial tiling and streaming, metered by storage, streaming and gigapixels

From
Free
Rated
-
Full reviewWebsite
CesiumJS logo

CesiumJS

Maps

Open-source JavaScript library for creating 3D globes and 2D maps with support

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Cesium ion streaming is metered in gigabytes a month, so a public-facing application's cost is driven by visitor traffic you do not control, and a successful launch can blow through a tier immediately.; CesiumJS the free Community tier does not permit commercial use
  • They diverge on capability: Cesium ion covers 3D Tiles tiling, CesiumJS covers Core Functionality.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Cesium ion and CesiumJS actually diverge.

Attributes where Cesium ion and CesiumJS differ
AttributeCesium ionCesiumJS
Pricing modelPer month by storage, streaming and gigapixelsopen-source
PlatformsWeb, CloudWeb

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

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 Cesium ion

  • 3D Tiles tiling
  • Global terrain and imagery
  • Google Photorealistic 3D Tiles
  • Cloud reality modelling
  • Streaming delivery
  • Access tokens
  • Geocoding
  • Self-hosted option

Only in CesiumJS

  • Core Functionality
  • User Interface

What people use each for

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

Cesium ion

  • A survey firm delivering a photogrammetry mesh to a client as a browser link rather than a 40 GB downloadnot CesiumJS
  • A simulation team streaming global terrain and imagery into an Unreal Engine environmentnot CesiumJS
  • An urban planning department publishing a city model that planners can inspect without desktop GIS softwarenot CesiumJS
  • A software product embedding 3D geospatial views and needing hosted tiling rather than building a tilernot CesiumJS

CesiumJS

  • Streaming 3D terrain, imagery and building data into web applicationsnot Cesium ion
  • Tiling and hosting large geospatial and reality capture datasetsnot Cesium ion

Where each one falls short

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

Cesium ion

  • Streaming is metered in gigabytes a month, so a public-facing application's cost is driven by visitor traffic you do not control, and a successful launch can blow through a tier immediately.
  • Reality modelling is billed in gigapixels a month, an unfamiliar unit that makes it hard to estimate in advance how many drone flights a plan will actually cover.
  • The free Community tier is restricted to non-commercial or open use, so a consultancy sharing a model with a paying client does not qualify regardless of how small the dataset is.
  • Team accounts cost substantially more than individual ones at the same quota, $524 against $149 on Commercial, so adding a second colleague is a large step rather than an incremental seat charge.
  • Self-hosting is available only under a custom enterprise agreement, which leaves organisations with data residency or air-gap requirements out of the published tiers entirely.

CesiumJS

  • The free Community tier does not permit commercial use
  • The cheapest commercial plan is $149 a month for an individual and $524 for a team
  • Team accounts are capped at 5 members on both the Commercial and Premium plans
  • Three separate quotas apply at once, being storage, monthly streaming and monthly reality modelling gigapixels, and exceeding any one of them constrains the account
  • Streaming is capped at 15 GB a month on the free tier

Pricing, plan by plan

Cesium ion

Free
  • CommunityFree
    • 5 GB storage
    • 15 GB per month streaming
    • 20 gigapixels per month reality modelling
  • Commercial$149/month
    • 50 GB storage
    • 150 GB per month streaming
    • 40 gigapixels per month reality modelling
  • Premium$499/month
    • 250 GB storage
    • 500 GB per month streaming
    • 100 gigapixels per month reality modelling
  • Custom$undefined/year
    • Negotiated quotas
    • Self-hosted deployment in your own environment
    • Enterprise support

CesiumJS

Free

No published plan breakdown. See the CesiumJS review.

Which should you pick?

Choose Cesium ion if

  • You need 3d tiles tiling.
  • You want to start without paying.
  • You work on Web, Cloud.
  • You also want global terrain and imagery.
Cesium ion review

Choose CesiumJS if

  • You need core functionality.
  • You want to start without paying.
  • You also want user interface.
CesiumJS review

Questions people ask

Is Cesium ion or CesiumJS better?
Neither clearly leads. Cesium ion starts at Free and CesiumJS at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Cesium ion or CesiumJS?
Cesium ion starts at Free and CesiumJS at Free.
Does Cesium ion or CesiumJS run on more platforms?
Cesium ion runs on Web, Cloud. CesiumJS runs on Web.
Can I use Cesium ion for free?
Both have a free tier, so you can try either at no cost before committing.
What is Cesium ion best used for?
Cesium ion is most often used for a survey firm delivering a photogrammetry mesh to a client as a browser link rather than a 40 gb download, a simulation team streaming global terrain and imagery into an unreal engine environment, an urban planning department publishing a city model that planners can inspect without desktop gis software, a software product embedding 3d geospatial views and needing hosted tiling rather than building a tiler. Of those, a survey firm delivering a photogrammetry mesh to a client as a browser link rather than a 40 gb download and a simulation team streaming global terrain and imagery into an unreal engine environment are not what CesiumJS is typically brought in for.
What can Cesium ion do that CesiumJS cannot?
Cesium ion covers 3D Tiles tiling, Global terrain and imagery, Google Photorealistic 3D Tiles, Cloud reality modelling. CesiumJS covers Core Functionality, User Interface.

Answered from the vendors’ own pages

Cesium ion: How is Cesium ion priced?

By several meters at once: storage in gigabytes, streaming in gigabytes per month, and reality modelling in gigapixels per month. Commercial starts at $149 a month for an individual.

CesiumJS: Is Cesium ion free for commercial use?

Cesium offers a free Cesium ion community account, but the page does not explicitly state whether the free tier is permitted for commercial use or if restrictions apply to business applications.

Source
Cesium ion: Is the free tier usable commercially?

No. Community is for non-commercial or open use. Commercial work needs a paid plan.

CesiumJS: What are the limits of the free Cesium ion community account?

The page only mentions that a free community account is available but does not disclose usage limits, storage quotas, or feature restrictions for the free tier.

Source
Cesium ion: Can I run ion on my own infrastructure?

Only under a custom enterprise agreement negotiated with Cesium.

CesiumJS: What do paid Cesium ion tiers cost?

The page does not provide specific pricing for paid tiers. It directs users to sign up for a free community account or contact Cesium directly for detailed pricing information.

Source
Cesium ion: Do I need Cesium ion to use CesiumJS?

No. CesiumJS is open source and free. ion provides hosted tiling, base layers and streaming that you would otherwise have to build.

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