BLK Converter

Turn BLK files into JPG, PNG, PDF and 700+ other formats. reaConverter handles bulk conversion with consistent quality.

How to Convert .blk Files in Bulk

1. Install reaConverter

Download reliable BLK conversion software to convert multiple .blk files and folders in one go.

2. Select BLK Files

Select BLKs from a folder or drag and drop them into reaConverter, then choose the desired output format.
reaConverter - Load BLK files

3. Start Conversion

Click Convert to start the bulk conversion of all selected BLK files. The process will begin right away.
reaConverter - Start BLK conversion

Convert BLK on your PC

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.

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.

Image editing

User Reviews

Average User Rating:
Last updated on November 29, 2025
"Before reaConverter, I was the ‘File Conversion Guy’ at work — a title I never asked for and definitely didn’t want. Then I found the Watch Folders feature, and suddenly I was free! Now, files convert themselves while I sip coffee and pretend I'm still working hard. My coworkers think I'm a wizard. Thanks reaConverter, for saving my sanity and boosting my fake productivity!"
Ben H.
Ben H.
Overwhelmed Office Hero
"Exactly what I needed! Simple, fast, and no bloat. I use reaConverter Lite to resize and convert batches of images for documents. The presets make it super easy, and everything works smoothly."
Mark Jones
Mark Jones
Happy User
"Converts files in seconds! Finally a tool that's both fast and simple to use."
Wei Chen
Wei Chen
Happy User
"5/5⭐ Finally! Does what it promises - converts AND tweaks images without complicated menus. Perfect for quick jobs."
J. Mitchell
J. Mitchell
Satisfied Customer
"I use the online converter — it’s quick and hassle-free!"
Jian Wong
Jian Wong
Happy Online User
"I was skeptical at first, but reaConverter exceeded my expectations. The interface is intuitive, and the advanced settings let me tweak outputs perfectly. Plus, the customer support is fantastic!"
Sarah Lane
Sarah Lane
Satisfied Customer

BLK files: Frequently Asked Questions

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 images 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?

Convert Gerber filesCrop imagesConvert GIS filesCopy IPTC dataConvert vector files

What formats can I convert a BLK file to?

Discover more

Explore our efficient BLK file converter that saves you time and effort by converting multiple .blk files into different formats.
reaConverter software