100% Free No Upload Bulk Conversion

Bulk DIB to PNG Converter — Free, Unlimited

Convert multiple DIB files to PNG instantly — all in your browser. No file limits, no watermarks, and completely private.

DIB PNG · ZIP

Bulk DIB → PNG Converter

Select files, convert, download ZIP — all locally

Drop DIB files here or click to browse

Supports batch selection — convert hundreds of files

DIB → PNG ZIP

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Converting 0 / 0

✓ Conversion completed! All files converted successfully. Click Download ZIP to save them.

Why convert DIB to PNG?

PNG isn't automatically 'better' than DIB in every case – but for Web graphics with transparency, it's the clearer choice. This conversion processes your files entirely in your browser using WebAssembly – no upload, no server, no privacy concerns. Perfect for sensitive or large batches. It's a small technical decision that quietly saves time down the line.

Technical comparison: DIB vs PNG

Property	DIB	PNG
Full name	Device Independent Bitmap	Portable Network Graphics
Compression	Uncompressed	Lossless
Color depth	24-bit	48-bit
Transparency	No	Yes
Web support	No	Yes
Developed by	Microsoft (1990)	PNG Development Group (1996)
Max colors	16.7M	16.7M+
MIME type	`image/bmp`	`image/png`
Category	Raster image	Raster image
Year gap	6 years apart in technical development
Best for	Windows system graphics	Web graphics with transparency
Estimated size change	Typically 50%-75% smaller

How to use — 3 simple steps

Select your DIB files

Drag & drop or click to choose multiple DIB images. No file size restrictions.

Start the conversion

Click "Convert to :to" — your files are processed locally using WebAssembly. No upload, no waiting.

Download ZIP archive

All converted PNG files are bundled into a single ZIP. One click, everything saved.

Popular use cases for DIB → PNG

Travel bloggers converting DIB photos to PNG to speed up their site

App store submissions requiring PNG instead of the original DIB screenshots

Legal teams converting scanned DIB documents to PNG for records

HR departments converting DIB ID photos to PNG for employee systems

💡 Pro tips

Use the ZIP download to get all converted files in a single click
All processing is private — files are never uploaded to any server

Frequently Asked Questions

The current version processes the batch in one continuous run; for very large batches, splitting into smaller groups is recommended.

Yes, you can drag a folder or multiple DIB files directly onto the drop zone.

Yes, once the page and its WebAssembly modules are loaded, conversion works without an active internet connection.

PNG is well suited for archival when its compression matches your quality needs — lossless PNG is ideal for long-term storage.

Bulk DIB to PNG Converter — Free, Unlimited

Why convert DIB to PNG?

Technical comparison: DIB vs PNG

How to use — 3 simple steps

Popular use cases for DIB → PNG

💡 Pro tips

Frequently Asked Questions

Can I pause and resume a large DIB to PNG batch?

Does the tool support drag-and-drop for DIB files?

Will converting DIB to PNG work offline after the page loads?

Can I trust PNG for long-term archival of my DIB images?

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