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BUM Converter

Convert BUM files on your own machine instead of an upload form. reaConverter processes everything locally, with no size limits.

4.8

Over 25 years of experience

Your files never leave your PC

Read what our users say

How to Convert .bum Files in Bulk

1. Install reaConverter

Download reliable BUM conversion software to convert multiple .bum files and folders in one go.

2. Select BUM Files

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

3. Start Conversion

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

Step by step

See It in Action

For quick and effortless BUM 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 BUM 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

From those who tried it

Average User Rating:
Last updated on July 01, 2026
Rare software that actually does it all! Converts anything, beautiful interface, and never lets me down. A must-have!
Henry R.
Henry R.
Happy User
This software just works! My old laptop can’t handle Photoshop, but reaConverter flies through conversions without breaking a sweat. Wi-Fi gone? Still strong!
Robert Williams
Robert Williams
Happy User
Finally an app that actually opens my weird files! Saves me from format frustration daily.
Kyle Brooks
Kyle Brooks
Happy User
This program is incredibly simple and user-friendly, even beginners can use it with ease. It supports batch processing, works offline, and runs smoothly on my aging Acer Aspire laptop. Best of all, the output quality is outstanding!
Kevin Harris
Kevin Harris
Happy User
The step-by-step video makes conversion foolproof. I'd recommend this to my grandma - it's that well-explained!
DeShawn M. Thompson
DeShawn M. Thompson
Happy User
An ultra-fast solution for minimizing file sizes. The entire conversion process takes just 3 minutes!
Logan B.
Logan B.
Satisfied Customer

Questions & Answers

BUM files: Frequently Asked Questions

Can reaConverter open BUM files?

reaConverter fully supports the BUM file format – open, edit, and export BUM files to any other popular file format with ease.

How do I change BUM to another format?

reaConverter is a user-friendly tool for converting BUM files. Once installed on your computer, it allows you to convert all your .bum files at once with just a few clicks. You can even convert bum images directly from Windows Explorer using the right-click menu — fast and convenient.

Can I convert BUM online?

If you only want to convert a few BUM files, you are welcome to try our free online BUM converter.

How can I turn BUM files on my computer to another format?

The best way to convert BUM 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 BUM.

How can I automate BUM 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 BUM 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 bum converter.

What else can I do with reaConverter?

Convert DICOM filesCrop photoChange format settingsCopy metadata (EXIF, IPTC)Convert PDF files

What formats can I convert a BUM file to?

Discover More

Beyond BUM conversion

Convert .bum 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.

Free trial · Windows 10/11 · v8.0.245 · Files never leave your computer

reaConverter software