Maps · head to head
Atlas.co vs Leaflet

Atlas.co
Maps
Browser-based collaborative GIS with published per-seat pricing and a free tier
- From
- Free
- Rated
- -

Leaflet
Maps
Leading open-source JavaScript library for mobile-friendly interactive maps, used by millions of developers worldwide
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Atlas.co analytical depth is a long way short of a mature GIS: there is no serious raster analysis, network analysis, topology editing or geodetic control, so complex work still goes back to QGIS or ArcGIS.; Leaflet 2D only with no support for 3D features, tilt, or rotation
- They diverge on capability: Atlas.co covers Browser GIS, Leaflet covers Core Functionality.
- Prices and features above were last checked on 1 September 2026.
Where they differ
Only the attributes on which Atlas.co and Leaflet actually diverge.
Identical on both: starting price (Free), free tier (Yes), platforms (Web), 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 Atlas.co
- Browser GIS
- Workflow builder
- Geocoding
- Collaboration
- Data import
- Cheap viewer seats
- Export and embed
- AI credits
Only in Leaflet
- Core Functionality
- User Interface
What people use each for
The jobs each tool is most often brought in to do.
Atlas.co
- A renewables developer screening sites against constraint layers who needs an answer this afternoon and has no GIS analyst availablenot Leaflet
- A planning or property team that mainly needs colleagues to view and comment on maps, where $7 viewer seats replace expensive read-only GIS licencesnot Leaflet
- A consultancy producing client-facing maps and embeds without maintaining desktop GIS installs across a distributed teamnot Leaflet
- An analyst with an address spreadsheet who needs geocoding, buffering and a shareable map without learning a desktop GISnot Leaflet
Leaflet
- Embedding interactive maps in a web pagenot Atlas.co
- Mobile-friendly map interfaces across desktop and mobile browsersnot Atlas.co
- Mapping where bundle size matters, at roughly 42 KB of JavaScriptnot Atlas.co
- Extending a basic map with plugins rather than adopting a full platformnot Atlas.co
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Atlas.co
- Analytical depth is a long way short of a mature GIS: there is no serious raster analysis, network analysis, topology editing or geodetic control, so complex work still goes back to QGIS or ArcGIS.
- Geocoding and workflow runs are metered per tier, and a single large address batch can exhaust a month’s Pro allowance in one afternoon, forcing an upgrade for a one-off job.
- The company is at pre-seed stage with roughly $2m raised and a small team, so buyers embedding it in a business process carry meaningful continuity risk.
- Annual billing is required to get the advertised prices, which removes the flexibility that would otherwise make a young vendor a low-risk trial.
- There is no offline or field capability at all, so any organisation whose spatial work includes data collection needs a second tool alongside it.
Leaflet
- 2D only with no support for 3D features, tilt, or rotation
- Performance degrades when rendering large datasets of complex vector geometries without optimization
- Limited dynamic styling support; style is fixed on the server when using raster tiles
- Lacks native support for WMS features; requires plugins like Leaflet.WMS and complex feature identification is cumbersome
- Requires external tile service for map imagery; does not provide map tiles natively
Pricing, plan by plan
Atlas.co
Free- StarterFree
- 3 projects
- 3 editors
- 1 GB storage
- Pro$23/month
- 10 projects
- 10 GB storage
- 10,000 geocoding runs
- Team$72/month
- Unlimited projects
- Viewer seats at $7 per month
- 25,000 geocoding runs
- Enterprise$undefined/year
- Unlimited storage and workflows
- 100,000 geocoding runs
- White-labelled embeds
Leaflet
FreeNo published plan breakdown. See the Leaflet review.
Which should you pick?
Choose Atlas.co if
- You need browser gis.
- You want to start without paying.
- You also want workflow builder.
Choose Leaflet if
- You need core functionality.
- You want to start without paying.
- You also want user interface.
Questions people ask
- Is Atlas.co or Leaflet better?
- Neither clearly leads. Atlas.co starts at Free and Leaflet at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Atlas.co or Leaflet?
- Atlas.co starts at Free and Leaflet at Free.
- Does Atlas.co or Leaflet run on more platforms?
- Both run on Web, so platform support will not decide this one for you.
- Can I use Atlas.co for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is Atlas.co best used for?
- Atlas.co is most often used for a renewables developer screening sites against constraint layers who needs an answer this afternoon and has no gis analyst available, a planning or property team that mainly needs colleagues to view and comment on maps, where $7 viewer seats replace expensive read-only gis licences, a consultancy producing client-facing maps and embeds without maintaining desktop gis installs across a distributed team, an analyst with an address spreadsheet who needs geocoding, buffering and a shareable map without learning a desktop gis. Of those, a renewables developer screening sites against constraint layers who needs an answer this afternoon and has no gis analyst available and a planning or property team that mainly needs colleagues to view and comment on maps, where $7 viewer seats replace expensive read-only gis licences are not what Leaflet is typically brought in for.
- What can Atlas.co do that Leaflet cannot?
- Atlas.co covers Browser GIS, Workflow builder, Geocoding, Collaboration. Leaflet covers Core Functionality, User Interface.
Answered from the vendors’ own pages
Atlas.co: How much does Atlas.co cost?
Starter is free, Pro is $23 per user per month and Team is $72 per editor per month with viewers at $7, all billed annually. Enterprise is quoted.
Leaflet: Is Leaflet free and open source?
Yes. Leaflet is open-source JavaScript library licensed for free use. Over 400 plugins add capabilities like marker clustering, heatmaps, drawing tools, geocoding, and routing.
SourceAtlas.co: Can it replace ArcGIS or QGIS?
For visualisation, light analysis and sharing, often yes. For raster, network or geodetic work, no.
Leaflet: How do I include Leaflet in my project via CDN?
Leaflet is available on multiple free CDNs including unpkg, cdnjs, and jsDelivr. Include the CSS stylesheet from https://unpkg.com/[email protected]/dist/leaflet.css and JavaScript from https://unpkg.com/[email protected]/dist/leaflet.js in your HTML head.
SourceAtlas.co: What is the viewer seat?
A read-only seat at $7 per month on the Team plan, intended for stakeholders who consume maps rather than build them.
Leaflet: What mapping services does Leaflet support?
Leaflet integrates seamlessly with various mapping services including OpenStreetMap, Google Maps, Bing, and other custom tile providers, allowing developers to choose the best base layer.
SourceAtlas.co: Where is the company based?
Oslo, Norway. It was founded in 2021 and has raised around $2m in pre-seed funding.
Leaflet: What is the file size of Leaflet?
Leaflet weighs about 42 KB of JavaScript.
SourceAtlas.co: Is there a free tier?
Yes, Starter gives three projects, three editors and 1 GB of storage with metered geocoding and workflow runs.
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