CX ConvertX
GIS

GPX → KML

Convert your GPS tracks and waypoints from GPX to KML format instantly for use in Google Earth and mapping tools.

GPX (GPS Exchange Format) is widely used by hiking devices and sports watches for recording raw track logs, waypoints, and routes. KML (Keyhole Markup Language), developed by Google, is designed for visualization in geographic software like Google Earth. Converting GPX to KML translates XML-based geographic coordinates into placemarks, paths, and polygons that rendering engines can easily display with custom styling.

Coordinates and timestamps are preserved accurately, though device-specific sensor metadata (like heart rate or cadence) may be dropped or mapped to generic extended data.

Tips

Common use cases

Why ConvertX stays free — forever

We built this project so anyone can convert files without paywalls, accounts, or hidden limits. Here is what that promise means in practice.

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Free tools today — and always

Every converter on ConvertX is free to use: no trials, no premium tiers, and no credit packs. We will never put core conversion features behind a subscription. Whether you convert one photo or a hundred files a week, the price stays zero.

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Privacy-first processing

Many image, audio, and video conversions run entirely in your browser. Your files never leave your device for those jobs. When server processing is required for documents or specialized formats, uploads are handled securely and removed automatically — typically within one hour.

File formats: what to choose

A quick guide to strengths and trade-offs of popular formats — so you pick the right one before converting.

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GIS & maps

Geographic and spatial data layers.

Common extensions: GeoJSON, KML, SHP, GPX, GPKG

Advantages
  • + GeoJSON is native to web maps
  • + KML works with Google Earth
  • + Shapefiles are common in GIS workflows
Disadvantages
  • SHP needs multiple sidecar files
  • Coordinate systems must match the target
  • Large datasets need simplification
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Images

Raster and vector graphics for web, print, and photography.

Common extensions: PNG, JPG, WebP, AVIF, GIF, SVG, HEIC, TIFF

Advantages
  • + WebP and AVIF offer excellent compression for the web
  • + PNG keeps transparency and sharp edges
  • + SVG scales without quality loss
Disadvantages
  • RAW and TIFF files are large and slow to share
  • JPEG loses quality on every re-save
  • Some formats are not supported in older browsers
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Documents

Office files, PDFs, ebooks, and plain text.

Common extensions: PDF, DOCX, XLSX, PPTX, ODT, EPUB, TXT

Advantages
  • + PDF locks layout for printing and sharing
  • + DOCX and ODT are easy to edit collaboratively
  • + Plain text works on any device
Disadvantages
  • PDF is hard to edit without special tools
  • Complex layouts may shift after conversion
  • Scanned PDFs need OCR for editable text
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Video

Clips, streams, screen recordings, and movies.

Common extensions: MP4, WebM, MOV, MKV, AVI, MPEG

Advantages
  • + MP4 (H.264/H.265) plays almost everywhere
  • + WebM is efficient for web embedding
  • + MKV can hold multiple audio and subtitle tracks
Disadvantages
  • High-resolution video needs lots of storage and bandwidth
  • Re-encoding always takes time and may reduce quality
  • Some codecs require licensing for commercial use

Frequently asked questions

Yes, ConvertX processes both track logs (trk) and waypoint elements (wpt) from your GPX file into corresponding KML geometries.
Yes, KML is the native format for Google Earth, so you can open the downloaded file immediately without extra plugins.
You can convert standard GPX files generated by navigation devices or fitness trackers. Extremely large enterprise datasets might require splitting.

Popular conversions