100% Secure & Private
BLK Converter
Turn BLK files into JPG, PNG, PDF and 800+ other formats. reaConverter handles bulk conversion with consistent quality.
How to Convert .blk Files in Bulk
1. Install reaConverter
2. Select BLK Files
3. Start Conversion
Step by step
See It in Action
For quick and effortless BLK 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 BLK 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 July 31, 2026
Questions & Answers
BLK files: Frequently Asked Questions
What are BLK files?
The BLK file format was closely linked to the Amiga, a series of personal computers that were marketed under the Commodore brand in the 1980s and 1990s. These files were designed to store bitmap images and functioned as a part of the larger Amiga IFF (Interchange File Format) collection. Since the decline of the Amiga computer, BLK files have become obsolete and can only be viewed using a limited selection of image viewer applications.
Can reaConverter open BLK files?
reaConverter fully supports the BLK file format – open, edit, and export BLK files to any other popular file format with ease.
How do I change BLK to another format?
reaConverter is a user-friendly tool for converting BLK files. Once installed on your computer, it allows you to convert all your .blk files at once with just a few clicks. You can even convert BLK files directly from Windows Explorer using the right-click menu — fast and convenient.
Can I convert BLK online?
If you only want to convert a few BLK files, you are welcome to try our free online BLK converter.
How can I turn BLK files on my computer to another format?
The best way to convert BLK 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 BLK.
How can I automate BLK 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 BLK 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 blk converter.
What else can I do with reaConverter?
Trace images to vectorChange bit depthConvert whole-slide imagesResize photosConvert GIS files
What formats can I convert a BLK file to?
Discover More
Beyond BLK conversion
Convert .blk 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.
