GIS

GPX → KMZ

Learn about the formats: What is GPX? What is KMZ?

Convert GPX GPS exchange tracks and waypoints into KMZ compressed KML files instantly. This conversion is essential for users moving navigation data from GPS devices into Google Earth.

GPX is an XML-based open standard specifically designed for storing geographic coordinates, tracks, and routes generated by hiking units and navigation apps. KMZ is a zipped version of a KML file created by Google, which bundles spatial data along with icons and imagery into a single compressed archive. When you convert GPX to KMZ, the underlying geospatial coordinates and track structures are repackaged into the Google Earth-compatible format.

The conversion between GPX and KMZ is completely lossless, meaning your coordinates, trackpoints, and routing data retain their full precision.

Tips

Ensure your GPX file contains valid timestamps if you plan to use the time slider feature in Google Earth after converting to KMZ.
Keep track names descriptive in your GPX file so they display clearly as placemark labels in the resulting KMZ map.
Check that large multi-track GPX files are properly structured before converting to keep the output KMZ manageable.

Common use cases

Visualizing hiking or cycling routes recorded on a Garmin device directly inside Google Earth Pro.
Sharing complex GPS itineraries with colleagues or clients who rely on Google Earth for spatial reviews.
Preparing custom GPS waypoints for 3D terrain exploration and mapping presentations.

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

No, the conversion is completely lossless. All geographic coordinates and track details are preserved accurately, and the final file size changes only insignificantly.

KMZ is a compressed archive containing the KML data, which results in a smaller file size that is much easier to share and load directly into Google Earth.

Yes, KMZ files converted from GPX can be opened natively in Google Earth mobile apps as well as various GIS viewers on smartphones.

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