Convert GeoJSONSeq to GPKG

Turn GeoJSON Sequence data into GeoPackage — free, instant, and entirely in your browser, with optional reprojection to any of 200+ coordinate systems.

No upload. No account. Your data stays on your machine.

Drop your files here or click to browse.

Shapefile (all parts or .zip), GeoJSON, KML/KMZ, GPKG, GPX, DXF, CSV, TAB and more — files never leave your browser.

Output format

Output coordinate system (optional)

Source CRS override (for CAD/CSV without one)

About GeoJSON Sequence (GeoJSONSeq)

Newline-delimited GeoJSON features — streamable and appendable, good for pipelines.

Worth knowing: One feature per line; not all viewers understand it.

About GeoPackage (GPKG)

The modern OGC standard — a single SQLite file holding many layers, vector and raster, with no size or field-name limits. The recommended successor to Shapefile.

Worth knowing: Single-file database: avoid concurrent writers.

How the conversion works

Drop your GeoJSONSeq file above.
We read it locally with GDAL compiled to WebAssembly — nothing is uploaded.
Optionally pick an output coordinate system; official datum grids are applied automatically.
Download your GPKG result, with a transformation report showing exactly what was done.