GIS

KMZ → CSV

Learn about the formats: What is KMZ?

At a glance

ConvertX.am converts KMZ files to CSV online, for free and without signing up. Upload a file of up to 500 MB and download the CSV result; uploaded and converted files are deleted automatically within about an hour.

Input:: KMZ
Output:: CSV
Price:: Free, no sign-up
File size:: Up to 500 MB
Your files:: Deleted automatically within about an hour

Convert geographic KMZ data into comma-separated tabular text with ConvertX. This conversion bridges spatial GIS datasets and standard spreadsheet documents.

KMZ is a compressed geographic file format primarily used in mapping software to store spatial coordinates, paths, and metadata. CSV, on the other hand, is a plain text document format structured in tabular rows and columns. Converting KMZ to CSV extracts the underlying spatial attributes, coordinates, and descriptive data from the zipped geographic container and organizes them into a structured text layout compatible with database managers and spreadsheet editors.

This is a lossless conversion between fundamentally different data types (gis to document). All coordinate data and attribute fields are fully preserved during the transformation, while the file size changes only insignificantly depending on the textual overhead.

Tips

Ensure your KMZ file contains point or attribute data that maps cleanly into tabular rows before converting.
Check that your spreadsheet software interprets the resulting CSV delimiter correctly, especially when handling complex geographic coordinates.
Review the extracted coordinate columns in the output CSV to confirm latitude and longitude are separated into individual fields.

Common use cases

Importing spatial point data from Google Earth archives into relational databases or business intelligence tools.
Analyzing geographic coordinates and descriptive placemark attributes using spreadsheet applications like Microsoft Excel or Google Sheets.
Migrating GIS mapping data into flat text formats for custom software ingestion.

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.

🎁

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.

🔒

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.

🗺️

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

🖼️

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

📄

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

🎬

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, this is a lossless conversion. All underlying coordinates and attributes are preserved, though complex 3D polygons may be flattened into coordinate text strings depending on the structure.

Converting KMZ to CSV allows you to view, filter, and manipulate spatial coordinates and metadata inside standard spreadsheet editors or text-based data pipelines.

The file size changes only insignificantly, as the conversion extracts compressed spatial data into structured text rows without discarding core information.

Popular conversions