I am aggregating a list of mapping data, geospatial and Earth Observation sources. , feel free to contribute.
Source Name
URL
Data Type
Resolution
License
Cost
API Access
Notes
Copernicus Data Space
link
Satellite (Optical, SAR)
10–60m
Open (Copernicus)
Free
Yes
New platform replacing SciHub
Landsat USGS EarthExplorer
link
Imagery, Elevation, LiDAR
30m, LiDAR varies
Public Domain
Free
Limited
Historic archive, bulk tools
MODIS (NASA)
link
Satellite (Optical, Thermal)
250m–1km
Public Domain
Free
Yes
Daily coverage, climate data
VIIRS
link
Satellite (Optical, Thermal)
375m–750m
Public Domain
Free
Yes
Day/night imagery, NOAA/NASA
NASA Earthdata/EOSDIS
link
Multiple (Satellite, Airborne)
Varies
Public Domain
Free
Yes
Portal for all NASA Earth science data
JAXA Global ALOS
link
Satellite (Optical, SAR)
10–30m
Open (registration)
Free for research
Limited
Japanese satellite data
Commercial Optical Satellites
Source Name
URL
Data Type
Resolution
License
Cost
API Access
Notes
Maxar
link
Satellite (Optical) & DEM
0.3–0.5m
Commercial
$25–$50/sqkm
Yes
Global coverage
Airbus
link
Satellite (Optical) & DEM
0.3–5m
Commercial
$5–25/sqkm
Yes
Global DEM & Imagery
Planet
link
Satellite (Optical)
0.5–5m
Commercial
$6–$40/sqkm
Yes
Global, excellent platform
Blacksky
link
Satellite (Optical)
0.35–1m
Commercial
$25/sqkm
Yes
Global, new 35cm archive
Satellogic
link
Satellite (Optical)
0.7–1m
Commercial
$8–$18/sqkm
Yes
Global coverage
Orora Tech
link
Satellite (Thermal)
80m
Commercial
$25/sqkm
Yes
Wildfire detection
Muon Space
link
Satellite (Firesat)
5m
Commercial
n/a
Yes
Environmental monitoring
Constellr
link
Commercial SAR Satellites
Source Name
URL
Data Type
Resolution
License
Cost
API Access
Notes
Umbra
link
Satellite (SAR)
25cm–1m
CC 4.0
varies/sqkm
Yes
High-resolution SAR
Capella Space
link
Satellite (SAR)
0.5m
Commercial
$4000–6000/image
Yes
High-resolution SAR
Iceye
link
Satellite (SAR)
25cm–1m
Commercial
$5000/image
Yes
Global coverage
Synspective
link
Satellite (SAR)
1–3m
Commercial
Varies
Yes
SAR provider
Iqps - QPS
link
Commercial Hyperspectral Satellites
Source Name
URL
Data Type
Resolution
License
Cost
API Access
Notes
Pixxel
link
Satellite (Hyperspectral)
5m
Commercial
$150/seat/month
Yes
Global coverage
Wyvern
link
Satellite (Hyperspectral)
5.3m
Commercial
$230/seat/year
Yes
Global coverage
Orbital Sidekick
link
Satellite (Hyperspectral)
8m
Commercial
n/a
Yes
Global coverage
Source Name
URL
Data Type
Resolution
License
Cost
API Access
Notes
OpenAerialMap
link
Aerial
Varies
Open
Free
Yes
Global coverage
Hexagon
link
Vexcel
link
Nearmap
link
Source Name
URL
Data Type
Resolution
License
Cost
API Access
Notes
Source Name
URL
Data Type
Resolution
License
Cost
API Access
Notes
OpenTopography
link
LiDAR, DEM
0.5–5m
Mostly open
Free
Yes
Regional coverage, custom filters
USGS National Map
link
Elevation, Hydro, Vector
1–10m
Public Domain
Free
Yes
Great US coverage
SRTM
link
Elevation (DEM)
30m (US), 90m (global)
Public Domain
Free
Yes
Global elevation from 2000
Vector Data (not exhaustive)
Source Name
URL
Data Type
Resolution
License
Cost
API Access
Notes
OpenStreetMap
link
Vector
N/A
ODbL
Free
Yes
Global, editable
Overture Maps
link
Vector (Places, Roads)
N/A
Open
Free
Yes
Backed by Meta, AWS, Microsoft, TomTom
Source Name
URL
Data Type
Resolution
License
Cost
API Access
Notes
Google Earth Engine
link
Analysis platform
Varies
Free for research/edu
Free (non-commercial)
Yes
Petabytes of data, cloud processing
Microsoft Planetary Computer
link
Multiple datasets
Varies
Varies
Free
Yes
Catalog with Sentinel, Landsat, more
Mapbox
link
Multiple datasets
Varies
Commercial
Varies
Yes
Custom maps and satellite
AWS Open Data Registry
link
Multiple datasets
Varies
Open
Free (egress fees)
Yes
Hosts Sentinel, Landsat, NAIP
Radiant Earth MLHub
link
ML-ready datasets
Varies
Varies
Free
Yes
Training data for ML applications
SkyFi
link
SkyWatch
link
Up42
link
Contributing: Please submit pull requests or issues to suggest additions or corrections!