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Maps · head to head

CARTO vs GRASS GIS

CARTO logo

CARTO

Maps

Location Intelligence Platform

From
On request
Rated
-
Full reviewWebsite
GRASS GIS logo

GRASS GIS

Maps

Long-running open source geospatial analysis engine for raster, vector and terrain processing

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only GRASS GIS has a free tier, so it costs nothing to try first.
  • Each has a real cost: CARTO no prices are published; the committed tiers are all quote-only; GRASS GIS the location and mapset data model requires importing data into a structured database with a fixed coordinate system before analysis, which is a real barrier for anyone used to opening files directly.
  • They diverge on capability: CARTO covers Spatial Analysis, GRASS GIS covers Raster analysis.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which CARTO and GRASS GIS actually diverge.

Attributes where CARTO and GRASS GIS differ
AttributeCARTOGRASS GIS
Starting priceOn requestFree
Pricing modelquoteOpen source, no licence fee
Free tierNoYes
PlatformsWebLinux, Windows, macOS
Founded2012Unknown

Identical on both: 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 CARTO

  • Spatial Analysis
  • Interactive Maps
  • Data Observatory
  • Workflows
  • APIs
  • Snowflake
  • BigQuery
  • PostgreSQL

Only in GRASS GIS

  • Raster analysis
  • Hydrological modelling
  • Terrain analysis
  • Vector topology
  • Temporal framework
  • Image processing
  • Python API
  • QGIS integration

What people use each for

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

CARTO

  • Spatial analysis over data already in a cloud warehousenot GRASS GIS
  • Building interactive maps and location dashboardsnot GRASS GIS
  • Geocoding and routing through location data servicesnot GRASS GIS
  • Site selection and territory planningnot GRASS GIS
  • Self-hosted geospatial analytics for regulated environmentsnot GRASS GIS

GRASS GIS

  • A hydrologist delineating watersheds and modelling flow accumulation over a large digital elevation modelnot CARTO
  • A research group building a reproducible time series analysis of satellite imagery that must be rerunnable years laternot CARTO
  • An environmental agency running viewshed and solar radiation analysis for planning assessments without buying commercial GIS seatsnot CARTO
  • A QGIS user who needs a specific processing algorithm that only exists in the GRASS toolboxnot CARTO

Where each one falls short

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

CARTO

  • No prices are published; the committed tiers are all quote-only
  • Metered on four separate axes: workflow runs, map loads, API calls and location data service operations
  • API access and tokens are limited on pay-as-you-go and unlimited only from the Strategic tier
  • Self-hosting is available on Enterprise and included only on the Custom tier
  • The 14 day trial explicitly forbids production use

GRASS GIS

  • The location and mapset data model requires importing data into a structured database with a fixed coordinate system before analysis, which is a real barrier for anyone used to opening files directly.
  • The native graphical interface is dated and inconsistent compared with QGIS or ArcGIS, so most users end up running GRASS through QGIS and never learn the tool they are actually depending on.
  • There is no vendor, so contractual support, service levels and liability do not exist by default and must be arranged with an independent consultancy that may not cover your jurisdiction.
  • Cartographic output and map layout are weak relative to the analysis capability, meaning a second tool is always needed to produce a publishable map.
  • Module naming and argument conventions are idiosyncratic and long-standing, so scripts are durable but the learning curve is steep and transferable skills from other GIS packages help less than expected.

Pricing, plan by plan

CARTO

On request
  • Pay As You Go$null/mo
    • Metered, capped location data services
    • Limited API access and tokens
    • Standard support
  • Enterprise$null/mo
    • Limited location data services with quota
    • Limited API access and tokens
    • Standard or Premium support
  • Strategic$null/mo
    • Unlimited API access and tokens
    • Premium or Elite support
    • Custom branding
  • Custom$null/mo
    • Up to unlimited location data services
    • Unlimited API access and tokens
    • Elite support

GRASS GIS

Free
  • GRASS GISFree
    • GNU GPL licence
    • All modules included
    • No user or seat limits

Which should you pick?

Choose CARTO if

  • You need spatial analysis.
  • You also want interactive maps.
CARTO review

Choose GRASS GIS if

  • You need raster analysis.
  • You want to start without paying.
  • You work on Linux, Windows, macOS.
  • You also want hydrological modelling.
GRASS GIS review

Questions people ask

Is CARTO or GRASS GIS better?
Neither clearly leads. CARTO starts at On request and GRASS GIS at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, CARTO or GRASS GIS?
GRASS GIS has a free tier; the other does not. Paid plans start at On request for CARTO and Free for GRASS GIS.
Does CARTO or GRASS GIS run on more platforms?
CARTO runs on Web. GRASS GIS runs on Linux, Windows, macOS.
Can I use GRASS GIS for free?
Yes. GRASS GIS has a free tier, so you can try it without paying. CARTO starts at On request.
What is CARTO best used for?
CARTO is most often used for spatial analysis over data already in a cloud warehouse, building interactive maps and location dashboards, geocoding and routing through location data services, site selection and territory planning. Of those, spatial analysis over data already in a cloud warehouse and building interactive maps and location dashboards are not what GRASS GIS is typically brought in for.
What can CARTO do that GRASS GIS cannot?
CARTO covers Spatial Analysis, Interactive Maps, Data Observatory, Workflows. GRASS GIS covers Raster analysis, Hydrological modelling, Terrain analysis, Vector topology.

Answered from the vendors’ own pages

CARTO: What CARTO pricing tiers are available?

CARTO offers Pay As You Go (monthly, consumption-based), Enterprise (annual commitment with limited quotas), Strategic (annual with unlimited API access), and Custom (annual with full services for large enterprises). Enterprise and higher require contacting sales.

Source
GRASS GIS: Who maintains GRASS GIS?

An international volunteer and academic developer community under the Open Source Geospatial Foundation. It originated at the US Army Construction Engineering Research Laboratory in 1982.

CARTO: Does CARTO have a free version?

CARTO does not advertise a free tier. The Pay As You Go plan requires monthly payments based on consumption with capped services.

Source
GRASS GIS: Can I buy commercial support?

Not from a vendor. Independent consultancies in the OSGeo ecosystem offer paid support and development, and availability varies by region.

CARTO: What is included in the CARTO Strategic plan?

Strategic tier includes unlimited API access and tokens, premium or elite support, custom branding, audit logs, and usage metrics. It requires an annual commitment and custom pricing quote.

Source
GRASS GIS: Do I need to use its interface?

No. Most people run GRASS algorithms through the QGIS processing toolbox or from Python.

GRASS GIS: Is it suitable for production use?

Yes for analysis pipelines, and it is used by agencies and research institutions. Plan for community support rather than a service level agreement.

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