Convert BMP to PNG
Convert legacy BMP files to compact, lossless PNG format.
Drop your BMP files here
Only BMP files accepted
Related tools
Image Compressor
Reduce file size by up to 90% without visible quality loss. Batch supported.
Image Resizer
Resize to exact dimensions or social media presets.
Image Cropper
Crop to any aspect ratio. Circle crop for profile photos.
Rotate & Flip Image
Rotate images 90°, 180°, or 270°. Flip horizontally or vertically. Instant and free.
Remove Background
AI-powered background removal, free and unlimited. No remove.bg account needed.
Image to PDF
Convert JPG, PNG, WebP, or HEIC photos to PDF. Combine multiple images, drag to reorder.
Image Upscaler
AI upscaling to 2× or 4×. Restore sharpness to low-resolution images.
Add Watermark
Protect your photos with text or image watermarks. Full control over opacity and position.
Screenshot Beautifier
Add gradient backgrounds, window frames, and shadows to your screenshots.
Blur Image
Apply a Gaussian blur to any photo. Adjust blur strength with a slider. Free and private — no upload.
PDF to JPG
Convert PDF pages to JPG or PNG images. Select specific pages, choose resolution, download as ZIP.
Why use PixelTools to convert bmp to png
Lossless and smaller
PNG keeps every pixel from your BMP while using compression to shrink the file dramatically.
Legacy format support
Got old BMP files from a scanner or legacy software? Convert them to modern, compact PNG.
Batch processing
Convert all your BMP files to PNG at once.
No upload
Processed locally. Private by design.
Three steps to convert bmp to png
- 1
Drop your BMP files
Drag your .bmp files onto the drop zone or click to browse. BMP files are uncompressed Windows bitmaps — they often look small on disk listings but can be 10–50 MB each. Multiple files are queued and processed in one batch.
- 2
Lossless re-encoding to PNG
The browser's Canvas API reads the raw uncompressed pixel data from each BMP frame and re-encodes it using PNG's DEFLATE lossless compression algorithm. No pixels are altered, no color data is approximated — the pixel array is identical before and after.
- 3
Download your PNGs
Each converted PNG is 50–90% smaller than the source BMP with zero quality difference. Download files individually or as a ZIP archive. Nothing is stored or sent to a server.
Who converts BMP to PNG?
BMP files are uncompressed relics — scanners, legacy Windows software, and old paint programs still produce them. People convert BMP to PNG to shrink 10–50 MB bitmaps down to 1–5 MB files without sacrificing a single pixel, because both formats are lossless.
Windows Scanner users clearing disk space
Flatbed scanners on Windows XP and 7 systems defaulted to saving documents as uncompressed BMP, creating 15–40 MB files per page. Converting to PNG preserves the scan at full fidelity while reducing each file to 2–6 MB.
Game developers migrating sprite archives
Older game engines like GameMaker 8 and RPG Maker XP stored sprite sheets as BMP because they needed raw pixel access. Converting to PNG keeps the pixel data bit-identical while making assets compatible with Unity, Godot, and modern editors.
IT admins archiving legacy Windows screenshots
Windows 3.1 and 95-era screen capture tools saved screenshots as 24-bit BMP files, sometimes hundreds in a single project folder. PNG compresses these especially aggressively because screenshots contain large flat color regions, often reaching 85–95% size reduction.
Digital archivists converting paint program output
Microsoft Paint saved files as BMP by default until Windows 7, producing uncompressed bitmaps from illustrations and diagrams. Archivists converting these to PNG can store the entire collection losslessly at a fraction of the original disk footprint.
Photographers with old film scanning rigs
Some flatbed film scanners connected to older PCs produced BMP output that Photoshop and Lightroom can open but that cloud storage apps like Google Photos and OneDrive handle poorly. PNG converts without any re-compression of the scanned data.
Educators preparing teaching materials from legacy software
Educational software from the 1990s and 2000s — such as Kid Pix and early versions of Publisher — exported diagrams and artwork as BMP. Converting to PNG makes these files embeddable in modern Google Slides, Canva, and LibreOffice Impress without quality loss.
Frequently asked questions
Why convert BMP to PNG?
+
BMP files are uncompressed and very large. PNG is lossless too but uses compression, so you get the same pixel-perfect quality at a fraction of the file size.
Does converting BMP to PNG lose quality?
+
No. Both BMP and PNG are lossless. The conversion preserves every pixel exactly while making the file much smaller.
How much smaller will the PNG be?
+
PNG is typically 50-90% smaller than an equivalent BMP thanks to lossless compression, with no quality loss.
Can I batch convert?
+
Yes. Drop all your BMP files and convert them to PNG in one batch.
Are my files uploaded?
+
No. Everything runs locally in your browser.
Should I convert to PNG or JPG?
+
Choose PNG for lossless quality and transparency. Choose JPG for the smallest files when a tiny quality trade-off is acceptable.
Need a different conversion?
Convert BMP to PNG now
Free, instant, no account needed.
Start converting →