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N1 Converter
Convert N1 data without installing QGIS or writing ogr2ogr commands. reaConverter is an ordinary Windows application with batch mode built in.
How to Convert .n1 Images in Bulk
1. Install reaConverter
2. Select N1 Files
3. Start Conversion
Step by step
See It in Action
For quick and effortless N1 file handling on your PC, reaConverter offers powerful conversion tools with batch processing. Best of all, it works entirely offline — ensuring your sensitive data never leaves your computer.
GIS Toolkit
Do more with your GIS data
Need N1 data as something anyone can open? reaConverter renders imagery and elevation grids into standard images and documents without QGIS or ArcGIS, and works through whole folders in one pass.
- Render imagery, elevation grids and scanned charts to TIFF, PNG, JPG or PDF
- Resize, crop and set DPI on the output in the same run
- Bring tiles, scenes and grids from many sources into one consistent format
- Convert incoming survey and field data automatically with Watch Folders
- Script GIS conversions from the command line for pipelines and scheduled jobs
- Keep cadastral, utility and client data on your PC: nothing is uploaded
User reviews
From those who tried it
Average User Rating:Last updated on July 28, 2026
Questions & Answers
N1 images: Frequently Asked Questions
What are N1 files?
N1 (Envisat Image Format) is the product file of the Envisat mission, with a structure shared by all of its instruments. The file begins with the Main Product Header, a fixed-size block of readable text that identifies the product, the satellite, and the time of observation. After it comes the Specific Product Header, also in text, which is defined for each product type and contains a list of data set descriptors, each giving the name, the position, and the size of one data set that follows. The data sets themselves mix text and binary records, and binary numbers are stored with the most significant byte first. Because the descriptors give exact positions, a program can jump straight to the image data without reading the whole file. To convert an N1 file to graphics, a program reads the headers, selects the measurement data set, such as an ASAR radar image or a MERIS spectral band, and reads the pixels. Radar amplitude is usually converted to a logarithmic scale, because its brightness range is very wide, and then stretched to 8 bits as grayscale, while spectral bands from an optical instrument can be combined into an RGB picture and calibrated with the stored coefficients. The result can be saved as PNG, JPEG, TIFF, or GeoTIFF with the location grid. Supported by ESA SNAP and Geomatica.
Can reaConverter open N1 files?
reaConverter fully supports the N1 image format – open, edit, and export N1 files to any other popular file format with ease.
Do I need QGIS or ArcGIS to convert N1 files?
No. reaConverter reads N1 files on its own, so the conversion needs no GIS installation and no licence. It handles whole folders at once, which suits survey archives, tile sets and data deliveries that have to reach people working in other software.
How do I change N1 to another format?
reaConverter is a user-friendly tool for converting N1 files. Once installed on your computer, it allows you to convert all your .n1 files at once with just a few clicks. You can even convert n1 images directly from Windows Explorer using the right-click menu — fast and convenient.
Why choose offline conversion with reaConverter?
Keep your sensitive data 100% private with offline processing that never exposes files to cloud risks. Our software meets strict compliance standards (GDPR, HIPAA, CCPA) while handling confidential documents for legal, healthcare and financial sectors.
Can I convert N1 online?
If you only want to convert a few N1 images, you are welcome to try our free online N1 converter.
How can I turn N1 files on my computer to another format?
The best way to convert N1 images on your PC is to get a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch files conversions, including conversion from N1.
How can I automate N1 files conversion?
reaConverter supports all the essential automation features, such as right-click сonversion and Watch Folders, for the most efficient automated file conversion in any software of its kind.
Can I convert N1 files using scripts or the command-line interface?
reaConverter provides full access to all its features from the Windows command-line shell, including the command-line n1 converter.
What else can I do with reaConverter?
Convert vector imagesChange image DPIConvert DICOM imagesCrop pictureConvert PDF
What formats can I convert a N1 file to?
Discover More
Beyond N1 conversion
Convert .n1 files in batches of any size, with editing and processing applied along the way. The same tool also handles 800+ other formats, including CAD, medical imaging, and GIS.
