JPG vs PNG vs WebP: which should you use?
By Sekora Studios · Updated
Choose JPG for photos that can use lossy compression, PNG when transparency or avoiding another lossy encoding step matters, and WebP when the destination supports it. Compare actual exports before deciding on file size.
Steps
- Check which formats the upload form, app or website accepts.
- Decide whether the image needs transparent pixels or particularly crisp small text.
- Choose the appropriate converter and inspect its preview.
- Download the result and compare its file size and visible quality before replacing your source.
When is JPG a useful choice?
JPG is practical for ordinary photos and forms that request JPEG. Its quality setting trades file size against compression artifacts. It cannot retain transparency; a converter must fill transparent areas with a solid background.
Small text, sharp lines and flat-color graphics can show artifacts clearly. If those features matter, inspect them at a readable size instead of judging only a reduced preview.
When should I keep PNG?
PNG supports transparency and encodes the decoded pixels without another lossy step. It is useful for graphics, screenshots and images you want to edit without repeated JPEG encoding.
Converting a JPG to PNG does not restore lost detail or remove its background. A photographic PNG can also be much larger than a lossy alternative.
What does WebP change?
WebP supports transparency and can be useful for smaller image exports. The size difference depends on the source and encoding choices. Check compatibility with the place that will receive the file before choosing it.
These browser converters handle static images. If animation matters, use a converter that preserves it.
How should I compare results?
Export the same source at the same dimensions. Compare text, faces, fine edges and transparent areas, then check the downloaded bytes. A lower byte count is useful only if the quality and format still meet the task.
More questions
Is WebP always smaller than JPG?
No. Image content and export settings affect the result. Compare files produced from the same source at the same dimensions.
Does lossless PNG fix a damaged JPG?
No. It avoids a new lossy encoding step but preserves the artifacts already present in the decoded source.