Convert OST to BMP
Convert OST to BMP instantly in your browser. Free, fast, and private - your files are processed locally on your device.
Drop your OST files here
Up to 50MB per file.
Conversion Settings
Files never leave your browser
How to Convert
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Upload your OST files
Drag and drop or select OST files from your device. You can upload multiple files at once.
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Configure Output
Choose any available BMP output options, then start the conversion.
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Download BMP files
Once conversion finishes, download your files individually or as a compressed ZIP archive.
Why convert OST to BMP?
OST is OST content ready to open, share, and use in compatible software. Converting it to BMP creates an uncompressed bitmap used by older Windows software and simple image workflows, ready for workflows that use the destination format.
BMP opens in Windows, macOS Preview, GIMP, Photoshop, and many general image viewers.
Frequently Asked Questions
What does converting OST to BMP do?
It creates a genuine BMP file from your OST. OST is the OST file format, while BMP is an uncompressed bitmap used by older Windows software and simple image workflows. The result is ready for workflows that use the destination format.
What is retained in the OST to BMP conversion?
Supported content is read from the OST file and written into a genuine BMP file, ready for applications and services that use the destination format.
Which apps can open the converted BMP file?
BMP opens in Windows, macOS Preview, GIMP, Photoshop, and many general image viewers.
Does OST to BMP run in my browser?
Yes. This OST to BMP conversion runs locally in your browser for fast, private processing on your device.
Can I batch convert OST files to BMP?
Yes. Add multiple OST files, convert them together, and download each BMP result separately or collect the completed batch in a ZIP file.
What is the OST to BMP file size limit?
OST files can currently be up to 50MB.