GEOO.APP

GeoPackage to ASCII Grid

Convert GeoPackage to ASCII Grid online for free — right in your browser. No upload, no sign-up, batch conversion, coordinate systems and attributes preserved.

Features

Fast Conversion

Efficiently convert from GEOPACKAGE to ASC format

Data Security

All processing is done locally in your browser

Standard Format

Output standard ASC format

geopackage to asc

Convert geopackage to asc online for free — right in your browser. No upload, no sign-up, batch conversion, coordinate systems and attributes preserved.

Drag and drop files or folders, or click to upload

Related Tools

About

GeoPackage

GeoPackage is an open standard defined by OGC, implemented on SQLite database technology. It is a single container file that can simultaneously store vector features, raster imagery, attribute tables, and map tiles. GeoPackage requires no database server and can be used directly on mobile devices and desktop applications, making it an ideal choice for modern GIS data exchange.

ASCII Grid

ASCII Grid (also AAIGrid) is a plain-text raster format by ESRI. The file header contains geographic metadata (cols, rows, origin, cell size, NoData), and the body stores each cell value as a space-separated numeric matrix. Highly readable, often used for teaching and small-scale data exchange.

Conversion trade-offs

GeoPackage: limitations to know

  • Does not support concurrent multi-user writes
  • Single database file size limited by SQLite constraints

ASCII Grid: what you gain

  • Viewable and editable without specialized software

Why convert GeoPackage to ASCII Grid?

Converting GeoPackage to ASCII Grid is one of the most common workflows in GIS. GeoPackage data usually comes from desktop GIS software, government open-data portals, or data exchange with partners, while ASCII Grid is what modern tools, web maps, and platforms expect. This converter bridges the two: it reads your GeoPackage files, keeps geometry and attributes intact, and writes clean ASCII Grid output — entirely in your browser, so your data never leaves your device.

Frequently asked questions

Are my files uploaded to a server?

No. The conversion runs entirely in your browser using WebAssembly — your files never leave your device.

Is the GeoPackage to ASCII Grid converter free?

Yes, completely free with no sign-up and no usage limits.

Are coordinate systems preserved when converting GeoPackage to ASCII Grid?

By default the output keeps the source coordinate system. If your GeoPackage file uses a projected CRS (like UTM), you can search any EPSG coordinate system by keyword or code and reproject in one step. Note: output formats that require WGS84 by specification (KML, KMZ, GPX) always reproject to WGS84 automatically.

Can I convert multiple files at once?

Yes — drop several GeoPackage files at once and each one produces its own ASCII Grid output.

ASCII Grid at a glance

Key Features

  • Plain text format, highly readable
  • Header contains complete geographic metadata
  • Supports NoData values

Common Use Cases

  • Teaching demos and small datasets
  • Teaching and small-scale data exchange

How to Use

  1. 1

    Upload your GeoPackage file — drag and drop it onto the page, or browse from your device. You can add several files at once for batch conversion.

  2. 2

    The conversion runs automatically in your browser. No upload, no server — your data stays on your device the entire time.

  3. 3

    Download the ASCII Grid file. Each input produces its own output, ready to use in your GIS, web map, or archive.