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ASC Converter
Convert ASC files to JPG right in your browser, with no upload and no size limit. reaConverter for Windows adds 700+ output formats and batch mode.
How to Convert .asc Files in Bulk
1. Install reaConverter
2. Select ASC Files
3. Start Conversion
Step by step
See It in Action
For quick and effortless ASC 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.
Extra Tools
Do more with your files
Converting ASC files for use in a larger project? reaConverter offers many ways to process files, so you can customize them according to your requirements.
Our range of editing options includes auto-processing options such as auto-rotate, auto-crop, watermarking and more. Change Color Space, copy Metadata, set DPI, manage ICC Profile, control Bit Depth.
User reviews
From those who tried it
Average User Rating:Last updated on June 29, 2026
Questions & Answers
ASC files: Frequently Asked Questions
What are ASC files?
The ASC file format, also known as Esri ASCII Grid or Arc/Info ASCII Grid, is a plain-text raster format used in Geographic Information Systems (GIS) to store gridded data such as digital elevation models, temperature surfaces and land cover values. Each file begins with a six-line header defining the grid dimensions, the position of its lower-left corner, the size of each cell and the value used to mark missing data, after which the cell values are listed as space-separated numbers. Its simplicity makes it easy to generate, inspect and edit in any text editor, and it is supported by virtually every GIS application, including ArcGIS, QGIS, GRASS GIS and SAGA, which is why it remains a common interchange format despite producing larger files than binary alternatives.
Can reaConverter open ASC files?
reaConverter fully supports the ASC file format – open, edit, and export ASC files to any other popular file format with ease.
How do I change ASC to another format?
reaConverter is a user-friendly tool for converting ASC files. Once installed on your computer, it allows you to convert all your .asc files at once with just a few clicks. You can even convert asc images directly from Windows Explorer using the right-click menu — fast and convenient.
Can I convert ASC online?
If you only want to convert a few ASC files, you are welcome to try our free online ASC converter.
How can I turn ASC files on my computer to another format?
The best way to convert ASC files 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 ASC.
How can I automate ASC 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 ASC 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 asc converter.
What else can I do with reaConverter?
Convert whole-slide imagesResize picturesConvert vector imagesChange image DPIConvert GIS files
What formats can I convert a ASC file to?
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Beyond ASC conversion
Convert .asc files in batches of any size, with editing and processing applied along the way. The same tool also handles 700+ other formats, including CAD, medical imaging, and GIS.
