GEOO.APP

GMT to Shapefile

Convert GMT to Shapefile 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 GMT to SHP format

Data Security

All processing is done locally in your browser

Standard Format

Output standard SHP format

gmt to shp

Convert gmt to shp 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

GMT

GMT ASCII Vectors is a text-based vector data format used by Generic Mapping Tools (GMT) software. GMT is widely used in earth science research and academic paper map making. The GMT format records geographic features as text lines, each containing coordinates and optional attribute information.

Shapefile

ESRI Shapefile is a vector data format developed by ESRI and one of the most widely used formats in GIS. A Shapefile actually consists of multiple files: .shp stores geometry, .shx stores spatial index, .dbf stores attributes, and .prj stores coordinate reference system information. Common practice is to package these files into a ZIP archive for distribution. Shapefile supports three basic geometry types: point, line, and polygon.

Conversion trade-offs

GMT: limitations to know

  • Only used in GMT software ecosystem, low universality
  • Does not support complex attributes and style information

Shapefile: what you gain

  • Industry standard with the best compatibility for data exchange
  • Excellent read performance, suitable for large-scale datasets
  • Extensive third-party library and tool support

Why convert GMT to Shapefile?

Converting GMT to Shapefile is one of the most common workflows in GIS. GMT data usually comes from desktop GIS software, government open-data portals, or data exchange with partners, while Shapefile is what modern tools, web maps, and platforms expect. This converter bridges the two: it reads your GMT files, keeps geometry and attributes intact, and writes clean Shapefile 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 GMT to Shapefile converter free?

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

Are coordinate systems preserved when converting GMT to Shapefile?

By default the output keeps the source coordinate system. If your GMT 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 GMT files at once and each one produces its own Shapefile output.

Shapefile at a glance

Key Features

  • Natively supported by virtually all GIS software with the best compatibility
  • Supports three basic geometry types: point, line, and polygon
  • Supports attribute tables (dBASE format) for storing feature properties

Common Use Cases

  • Geographic data publishing and sharing by government agencies and enterprises
  • Primary data storage and exchange in GIS projects
  • Standard data format for traditional desktop GIS software

How to Use

  1. 1

    Upload your GMT 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 Shapefile file. Each input produces its own output, ready to use in your GIS, web map, or archive.