Free GeoTIFF to CSV, XYZ, ASCII Grid, and GeoJSON Converter: Convert Raster Data in Seconds

Need to convert GeoTIFF files to CSV, XYZ, ASCII Grid, and GeoJSON? Our free, web-based GeoTIFF converter tool makes it easy to instantly transform raster data into CSV, XYZ, ASCII Grid, and GeoJSON formats.

Simply upload your GeoTIFF file, configure your output preferences, and download your converted data in seconds: no registration required, no file size restrictions, and completely secure client-side processing.

What is GeoTIFF?

GeoTIFF is a popular geospatial raster format that combines geographic coordinate information with image data. Commonly used for satellite imagery, elevation models, climate data, and environmental datasets, GeoTIFF files contain both the visual data and precise geographic positioning information.

Converting GeoTIFF to CSV format allows you to analyze this spatial data in Excel, import coordinates into databases, or use the data in statistical software packages that don’t natively support raster formats.

How to Use the GeoTIFF Converter Tool

Step 1: Upload Your GeoTIFF File

• Drag and drop your .tif or .tiff file into the upload area, or click to browse and select your file
• Supports both single-band and multi-band GeoTIFF files
• For optimal performance, we recommend files under 100MB

Step 2: Configure Output Settings

Choose Your Output Format

• CSV: Excel-compatible format with X, Y, Z columns – perfect for spreadsheet analysis
• XYZ: Space-delimited format ideal for 3D modeling software like MeshLab or CloudCompare
• ASCII Grid: ESRI ASCII raster format for importing into GIS applications
• JSON: GeoJSON format for web mapping applications and JavaScript libraries

Select Data Bands

• Single Band: Choose one data layer (elevation, temperature, etc.)
• Multiple Bands: Export RGB channels or multiple data variables
• Band Information: View band statistics and data ranges before conversion

Configure Sampling Options

• All Pixels: Export every pixel for maximum detail (creates larger files)
• Every 2nd Pixel: Reduce file size by 75% with minimal quality loss
• Every 5th Pixel: Balance between file size and data resolution
• Every 10th/20th Pixel: Fastest processing for large datasets or overview analysis

Handle No-Data Values

• Skip: Exclude no-data pixels from output (recommended for most uses)
• Include as NULL: Keep no-data values as NULL entries in your CSV
• Convert to Zero: Replace no-data values with 0 (useful for mathematical analysis)

Set Coordinate Precision

• 2-8 Decimal Places: Control coordinate accuracy and file size
• 6 Decimals (default): Provides meter-level precision for most applications
• Higher Precision: Use 7-8 decimals for centimeter-level accuracy

Step 3: Download Your Converted Data

Once processing is complete, your file will automatically download. Large files may take a few moments to process – watch the progress bar for real-time updates.

Advanced Features

• Real-time Progress Tracking: Monitor conversion status with detailed progress indicators
• Multiple Format Export: Generate several output formats from one conversion
• Mobile-Friendly: Works seamlessly on smartphones and tablets
• File Validation: Automatic verification ensures only valid GeoTIFF files are processed
• Secure Processing: All conversion happens locally in your browser – your data never leaves your device

Common Use Cases

GIS Professionals

Convert satellite imagery and elevation data for analysis in Excel or import into databases for spatial queries.

Environmental Researchers

Transform climate datasets, vegetation indices, and environmental monitoring data into formats suitable for statistical analysis.

3D Modeling Specialists

Generate XYZ point clouds from elevation data for use in modeling software like Blender, MeshLab, or AutoCAD.

Data Scientists

Extract coordinate data from raster datasets for machine learning projects or statistical modeling.

Students and Educators

Convert geospatial datasets for classroom projects and research assignments without requiring expensive GIS software.

Technical Specifications

• Browser Support: Chrome 60+, Firefox 55+, Safari 12+, Edge 79+
• File Size: Optimized for files under 100MB (larger files supported with sampling)
• Processing: Client-side conversion using WebAssembly for maximum speed
• Security: No server uploads – all processing happens locally
• Dependencies: Powered by GeoTIFF.js, JSZip, and FileSaver.js libraries

Limitations & Best Practices

• Large Files: Files over 100MB may require sampling options to prevent browser memory issues
• Processing Time: Conversion speed depends on file size, sampling rate, and device performance
• Format Support: Currently supports GeoTIFF input only (.tif, .tiff extensions)
• Coordinate Systems: Output preserves original projection – use GIS software for reprojection if needed

Frequently Asked Questions

What file formats can I convert to?

Our tool supports conversion to CSV (Excel-compatible), XYZ (3D modeling), ASCII Grid (GIS software), and JSON (web applications). CSV format is most popular for data analysis in Excel or statistical software.

How large of a file can I process?

While there’s no hard limit, we recommend files under 100MB for optimal performance. For larger files, use sampling options (every 5th or 10th pixel) to reduce processing time and output file size.

Do I need to install any software?

No installation required! This is a completely web-based tool. Simply open it in your browser, upload your GeoTIFF file, and download the converted results instantly.

What coordinate system does the output use?

The tool preserves the original coordinate system and projection from your GeoTIFF file. You can control the decimal precision (2-8 places) but coordinate transformation requires specialized GIS software.

Can I convert multi-band GeoTIFF files?

Yes! You can select specific bands to export or include all bands. For RGB imagery, you might want all three color bands. For elevation data, typically only one band is needed.

Is my data secure and private?

Absolutely! All processing happens locally in your browser using JavaScript. Your GeoTIFF files are never uploaded to our servers, ensuring complete data privacy and security.

What should I do if the conversion fails?

First, verify your file is a valid GeoTIFF with .tif or .tiff extension. Try reducing file size using sampling options, or refresh your browser and try again. Check the browser console (F12) for detailed error messages.

Can I use this tool for commercial projects?

Yes, this tool is free for both personal and commercial use. The underlying open-source libraries (GeoTIFF.js, JSZip, FileSaver.js) have permissive licenses allowing commercial usage.

How accurate are the converted coordinates?

Coordinate accuracy depends on your precision settings and the original GeoTIFF resolution. The default 6 decimal places provides meter-level accuracy suitable for most applications. Increase to 7-8 decimals for centimeter-level precision.

Does the tool work offline?

After the initial page load, the tool can process files offline since all conversion happens in your browser. However, you need an internet connection to initially load the tool and its dependencies.

Ready to convert your GeoTIFF files? Use the converter tool above to transform your raster data into analysis-ready formats in seconds. No registration required – just upload, configure, and download!