How to Convert JPG to PNG Online — 4 Steps
IMGVO converts JPG to PNG entirely inside your browser. Your image never leaves your device.
- Go to the JPG to PNG converter Visit imgvo.com/jpg-to-png — no account needed.
- Upload your JPG Drag and drop your file onto the upload area, or click to browse. You can convert multiple files at once.
- Click Convert The tool re-encodes your image as a PNG using lossless compression. This takes under a second for most files.
- Download your PNG Click the Download button to save the PNG to your device. Done.
toBlob('image/png') method. Nothing is uploaded to any server.
JPG vs PNG: Key Differences
Understanding why you'd convert requires knowing what's different between the two formats:
JPG (JPEG)
- Small file sizes for photos
- Universal browser support
- Great for sharing & email
- Lossy — discards data on save
- No transparency support
- Artifacts appear on text/edges
PNG
- Lossless — perfect quality
- Full alpha transparency
- Crisp edges on text & logos
- Larger file sizes for photos
- Not ideal for camera images
- Slower to load on slow connections
The core trade-off: JPG wins on file size for photos; PNG wins on quality and transparency for graphics.
When Should You Convert JPG to PNG?
Converting makes sense in these specific situations:
- Editing with further saves: If you plan to edit and re-save the image multiple times, convert to PNG first. Each JPG re-save adds another round of quality loss. PNG is lossless so repeated saves don't degrade the image.
- Overlaying on colored or transparent backgrounds: PNG files can have transparent pixels. After converting, use a background removal tool to isolate the subject — the PNG format then preserves the transparency.
- Screenshots and UI graphics: Screenshots often look better as PNG because text and interface elements have sharp edges that JPG compression blurs.
- Archiving originals: If you want a lossless backup of a JPG (even if it already has some compression), PNG preserves the current state without adding further loss.
Will Image Quality Improve After Converting?
This is the most common misconception about JPG-to-PNG conversion: quality does not improve.
When a JPG is created, the encoder discards some image data to achieve its smaller file size. That data is permanently gone. Converting the JPG to PNG wraps the remaining pixel data in a lossless container — PNG faithfully stores exactly what the JPG currently contains, but it cannot reconstruct what was discarded during the original JPG compression.
If you see blocking artifacts, smeared edges, or color banding in the JPG, those defects will appear identically in the PNG. The PNG simply prevents any additional quality loss on future saves.
What Happens to File Size?
Expect the PNG to be significantly larger than the original JPG — typically 2x to 5x larger for photographic images.
This is not a bug. JPG achieves small file sizes by discarding data (lossy compression). PNG keeps all the data and compresses it losslessly, which is inherently less aggressive on photographic content where pixel values vary continuously across the image.
For non-photographic images — screenshots, diagrams, graphics with large areas of flat color — the size difference is smaller. PNG can sometimes be competitive with or even smaller than JPG for these types of images because its compression algorithm handles uniform regions efficiently.
JPG, PNG, and Transparency
JPG has no transparency support at all. Every pixel in a JPG has a red, green, and blue value — there is no alpha channel. When a JPG is displayed on a web page or application, the background is always solid, typically white.
PNG supports full alpha transparency: each pixel can have an opacity value from 0 (fully transparent) to 255 (fully opaque), with any level of semi-transparency in between. This makes PNG the standard format for logos, icons, and UI elements that need to sit on top of other content.
Converting JPG to PNG does not automatically create transparency. If your JPG has a white background and you convert it to PNG, you'll get a PNG with a solid white background — not a transparent one. To get transparency, you need to remove the background after conversion using a background removal tool.
Transparency workflow
- Convert JPG → PNG using IMGVO
- Open the PNG in a background removal tool (remove.bg, Photoshop, GIMP, etc.)
- Export as PNG — the transparent areas will be preserved
Frequently Asked Questions
Does converting JPG to PNG improve quality?
No. Quality does not improve. PNG stores exactly what the JPG currently contains — losslessly — but cannot recover detail discarded during the original JPG compression. The benefit is that future saves won't add further quality loss.
Will the PNG file be larger than the JPG?
Yes, almost always for photos — typically 2–5x larger. PNG uses lossless compression which is less efficient than JPG's lossy compression for photographic content. For screenshots and graphics, the difference is smaller.
Does JPG support transparency?
No. JPG has no alpha channel. If you need transparency, use PNG, WebP, or AVIF. Converting a JPG with a white background won't automatically make it transparent — you'll need to remove the background separately.
Is it safe to convert JPG to PNG online?
Yes — IMGVO processes everything in your browser. Your images are never uploaded to a server, so there's no privacy risk regardless of how sensitive the content is.
When should I convert JPG to PNG?
Convert when you need to edit the image further without adding quality loss, when you want a lossless archive copy, or when you're using it as a starting point for background removal to get a transparent image.