BLK Converter

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

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BLK Files
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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.
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Install reaConverter

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.

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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.

Conversion features
Image editing

User Reviews

Average User Rating:
Last updated on June 01, 2026
"My photography business relies on fast, accurate processing of images. With reaConverter’s Watch Folder, I drop my RAW photos into a folder and they’re instantly converted to high-res JPEGs with custom naming and watermarking. It’s streamlined my post-processing more than I imagined possible."
Emily R.
Emily R.
Photographer
"For agencies handling confidential data, reaConverter eliminates cloud-upload risks while delivering unmatched conversion reliability. Our team uses it both in-office and remotely with identical results."
Jamal Bailey
Jamal Bailey
Satisfied Customer
"Security was our top concern when evaluating file conversion tools. reaConverter’s offline mode and role-based access controls let us lock it down for sensitive environments. No unexpected network calls or bloat — just clean, fast conversions. Even passed our pen-testing scans without a hitch."
Marcus White
Marcus White
Healthcare IT
"I run a small design agency, and reaConverter has saved me countless hours. The batch processing is lightning-fast, and the ability to convert hundreds of files into different formats at once is a game-changer. Highly recommend!"
Mark T.
Mark T.
Satisfied Customer
"I'm really impressed with this software - it converts files between formats incredibly fast!"
Lin Zhang
Lin Zhang
Happy User
"I was drowning in mismatched file formats until I found reaConverter. The one-click conversion and editing tools simplified everything, and the pricing is reasonable for small businesses. Now I spend less time troubleshooting and more time growing my brand!"
Emily K.
Emily K.
E-commerce Entrepreneur

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 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?
ai  apng  avif  bmp  bpg  cal  cg4  cgm  cin  cit  dcm  dcx  dds  dgn  dis  drw  dwf  dwg  dxf  emf  epi  eps  fax  fits  flif  gbr  gif  glb  gltf  hpg  hru  ico  iff  iges  igs  jp2  jpeg  jpg  jxl  jxr  mif  mtv  pcl  pct  pcx  pdf  pgm  pic  plt  png  ppm  prc  ps  psd  qoi  qrt  rad  rla  sgi  shp  step  stl  stp  svg  svgz  tga  tif  tiff  u3d  webp  webpll  wmf  wmz  wpg  wrl  x3d  xbm  xpm 

Beyond BLK conversion

Convert .blk 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.
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Free trial · Windows 10/11 · 64-bit · v8.0.240 · Files never leave your computer
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