PNG vs JPG vs WebP: which format should you use?
Use JPG for photos that need broad compatibility, PNG for lossless drawings or transparent graphics, and WebP for web images where a smaller file and transparency are useful. The best choice depends on the picture and where it will be used; compare the exported file before replacing your original.
| Format | Compression | Transparency | Useful for |
|---|---|---|---|
| JPG / JPEG | Lossy | No | Photos and upload forms that require JPEG |
| PNG | Lossless | Yes | Line art, screenshots, and graphics with crisp text |
| WebP | Lossy or lossless; our tool uses lossy color encoding | Yes | Website photos and transparent graphics |
Choose for the image, then check the destination
A drawing with a few solid colors and sharp outlines has different needs from a camera photo. PNG keeps the decoded pixels without a lossy encoding pass, so it is a useful starting point for fine text and line art. JPG trades some detail for file size and is often a practical choice for photographs.
WebP supports both lossy and lossless modes, but the converters on this website use a quality-controlled lossy mode. They preserve transparency. A high quality setting can retain more fine detail, while a lower setting can make artifacts around text and outlines easier to see.
Before converting, check which formats the destination accepts. A smaller WebP is not useful if an application form only accepts JPG or PNG. For an image editor, the ability to reopen the file may matter more than download size.
What happens to a transparent background?
PNG and WebP can keep transparent areas. JPG cannot. When you export JPG with our tools, transparent areas are filled with your selected background color, using white by default.
For a transparent sketch or logo, convert PNG to WebP if the destination accepts it, or keep PNG. Converting that JPG back to PNG later does not restore the removed transparency. Changing the extension alone does not convert the file.
A larger PNG does not mean a sharper photo
A JPG-to-PNG conversion stores the already decoded photo in a lossless format. It does not recover details discarded during earlier JPG compression. The PNG can be much larger while looking the same.
The reverse conversion can be useful for a photo stored as PNG, but it introduces JPG compression. Keep an original copy and inspect high-contrast edges, small lettering, and fine textures in the preview before using the result.
A practical check for sketches and photos
Start from your best available original. Use PNG for a clean sketch with transparency, or compare JPG and WebP for a photograph. Set the pixel dimensions for the intended use before judging file size.
Export once, compare the actual size, and inspect the result at the size people will view it. If the file became larger or the lines look softer, adjust the settings or keep the original. There is no single percentage saving that applies to every image.
- Check whether transparency is required.
- Check the destination's accepted formats.
- Compare actual bytes and the visible result.
- Keep the original for future edits.
Try the tools
Common questions
Does JPG to PNG remove the background?
No. It changes the file format and keeps the existing background. Background removal is a separate editing task.
Is WebP always smaller than PNG?
No. Size depends on the image, dimensions, encoder, and quality. Compare the actual exported sizes rather than assuming a fixed saving.