FormatShiftConvert PNG to JPG Online
Drag PNG files here
Processed locally inside browser
Online PNG to JPG Converter
Convert PNG images to JPEG format right inside your browser. Transparent backgrounds are replaced with solid white without server uploads.
Transforms PNG graphics into JPEG raster format with hardware acceleration via HTML5 Canvas API. Transparent alpha pixels are filled with clean #ffffff white at 92% quality.
PNG vs JPG (JPEG): Key Differences & Comparison
| Feature | PNG | JPG (JPEG) |
|---|---|---|
| Compression | Lossless (Deflate) | Lossy (Discrete Cosine) |
| Transparency | Supported (8/16-bit alpha) | Not supported (solid background) |
| File Size | Heavier for complex photos | Compact (50–80% lighter) |
When to Keep PNG:
- You need transparent backgrounds for UI buttons or logos
- Image contains high-contrast fine text or pixel art
When to Convert to JPG (JPEG):
- Screenshot or photo is too heavy for email attachment
- Destination platform rejects PNG format
🎯 Exact Technical Outcome: What Happens to Your File
Exact original resolution preserved (1:1 pixel grid)
Alpha channel replaced with solid white (#ffffff)
EXIF tags stripped during Canvas redraw (privacy enhancement)
40–80% size reduction for continuous-tone photos and screenshots
How It Works
Select PNG
Drag and drop files or browse from your device storage.
Canvas Rendering
Browser decodes pixels onto a 2D canvas with #ffffff white fill.
JPEG Encoding
Encodes frame via toBlob with 92% quality ratio.
Instant Download
Saved directly to disk from browser memory via Blob URL.
When to Use
- ✓Compressing heavy screenshots before messaging or email dispatch
- ✓Fixing black background rendering glitches on legacy portals
Related Tasks & Workflows
Frequently Asked Questions
JPEG has no alpha channel support. Canvas fills transparent pixels with solid white (#ffffff).
In-Browser Local Processing
In-browser client processing — your files never leave your device.