Any file up to 500 MB. Drop several files and they come back as one ZIP. Many image, audio and video conversions run in your browser; anything else is uploaded and removed within the hour.
Convert your KML geographic data files into compressed KMZ archives instantly with ConvertX. This tool is essential for GIS specialists and mapping enthusiasts looking to optimize file distribution.
KML (Keyhole Markup Language) is an XML-based format used to display geographic data in applications like Google Earth. KMZ is simply the zipped version of KML, which can also bundle related resources like raster images and icons into a single archive. Converting KML to KMZ packages your spatial data efficiently, reducing the overall file structure into a single streamlined archive without altering the underlying coordinates.
The conversion from KML to KMZ is entirely lossless. Your spatial data, polygons, and placemarks retain 100% of their original precision and accuracy.
We built this project so anyone can convert files without paywalls, accounts, or hidden limits. Here is what that promise means in practice.
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.
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.
A quick guide to strengths and trade-offs of popular formats — so you pick the right one before converting.
Geographic and spatial data layers.
Common extensions: GeoJSON, KML, SHP, GPX, GPKG
Raster and vector graphics for web, print, and photography.
Common extensions: PNG, JPG, WebP, AVIF, GIF, SVG, HEIC, TIFF
Office files, PDFs, ebooks, and plain text.
Common extensions: PDF, DOCX, XLSX, PPTX, ODT, EPUB, TXT
Clips, streams, screen recordings, and movies.
Common extensions: MP4, WebM, MOV, MKV, AVI, MPEG
