What is a .SID file?
SID is a MrSID image, compressing huge aerial and satellite photos for fast viewing. The same extension is also the Commodore 64 SID music file collected in the High Voltage SID Collection.
- Did you know
- MrSID lets gigapixel aerial imagery be panned and zoomed smoothly.
- MrSID stands for Multi-resolution Seamless Image Database, a wavelet-based format developed and patented by LizardTech.
- The technology behind MrSID was first developed at the Los Alamos National Laboratory before LizardTech commercialised it.
- What Analyser reads
- Inspect geospatial and GIS files without a map: TopoJSON, OpenStreetMap XML, Esri Shapefile siblings (SHP/SHX/DBF/PRJ/CPG), world files, GML, NMEA GPS logs, IGC flight logs, MapInfo TAB/MIF, GDAL VRT, PMTiles, DTED terrain, Esri ASCII grids and SRTM .hgt - surfacing CRS/EPSG, feature/record counts, bounding boxes and elevation ranges. GRIB/NetCDF/GeoPackage/MBTiles/MrSID/ECW identified.
- Depth of analysis
- .SID is an identification-grade format: Analyser recognises it from its bytes and decodes the header metadata it carries, rather than opening it in a full viewer. Formats that do get a full viewer are marked "Full" on the formats page.
- Open a .SID file
- Drag a .SID file onto the Analyser home page (or tap to pick one). It is identified entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.