Supported formats

Every build bundles the driver registry of its GDAL release (3.13.1; CI asserts 189 drivers register). Below: the formats people look for, with write capability. Your build's exact list is one call away.

Query the registry at runtime

const drivers = await Module.toArray(await Gdal.getDrivers());
for (const d of drivers) {
  console.log(
    await d.getShortName(),     // "GTiff"
    await d.getLongName(),      // "GeoTIFF"
    await d.isRaster(), await d.isVector(),
    await d.isWritable(),
    await d.getExtensions(),
  );
}

Driver capabilities (creation options, layer creation options, open options) are introspectable per driver. The converter app builds its whole UI from this.

Well-known drivers in the build

Notes & special cases

• GeoTIFF compression: DEFLATE, LZW, PACKBITS, and since the April 2026 codec work, JPEG, ZSTD, LERC, LERC_ZSTD.
• Zipped data: open archives directly via /vsizip/. See the VFS guide.
• Planetary formats: PDS enabled by request of the USGS planetary team (issue #70, with a fix from GDAL's maintainer, PR #66).
• GPSBabel: disabled: it shells out to an external binary, impossible in wasm (PR #66).
• Network-dependent drivers (PostGIS, WMS/WFS as remote services) need /vsicurl/-class plumbing. Tracked in issue #67.
• RO/RW above reflects this build's test matrix and GDAL capability; writability can also be checked per driver at runtime (d.isWritable()).