PNG vs JPG vs WebP: Choose an Image Format
Choose PNG when preserving sharp graphics or transparent pixels matters, JPEG for broadly compatible opaque photographs, and test WebP when the destination accepts it. The right answer depends on the image and its use. Compare exports at the same dimensions instead of assuming the newer format is always smaller.
PNG: sharp detail and transparency
PNG stores a lossless representation of the pixels being encoded. It is a useful starting point for screenshots, interface graphics and images with transparent edges. A photographic PNG can be large because preserving every pixel may require more bytes than an acceptable lossy representation.
Do not confuse lossless output with restoration. Turning a damaged JPEG or lossy WebP into PNG preserves the decoded pixels it receives; it cannot reconstruct the original detail. Resizing and other pixel edits also remain changes even when the last export is PNG.
JPEG: opaque photographs
JPEG, also commonly named JPG, is useful when the receiving application expects photographic images with no transparency. Lower quality may introduce artifacts around edges or fine text. A transparent PNG needs a background when converted to JPEG: inspect the selected background before sharing a logo or product cutout.
WebP: test size and compatibility
WebP supports transparency and can provide a useful alternative for web images. Flekify's conversion offers a quality control; that does not promise a lossless conversion or a fixed percentage of savings. Keep the source file for editing and confirm that the destination accepts the actual WebP output.
Work through three examples
For a transparent logo, compare PNG with a WebP export and inspect the edge against both light and dark backgrounds. For a photograph, compare JPEG and WebP at the same dimensions and similar visible quality. For a screenshot with tiny text, start with PNG and reject alternatives that make labels difficult to read.
Transparent logo → PNG or tested WebP
Opaque photograph → compare JPEG and WebP
Small-text screenshot → start with PNG
PNG-only editor → convert WebP to PNGChoose and verify
1. Check accepted formats and whether transparency is required. 2. Set the intended dimensions. 3. Export candidate formats from the original. 4. Compare visible detail and actual bytes. 5. Open the winning file in its destination. Renaming an extension alone does not convert the encoded image.
Follow along in Flekify
For a transparent PNG candidate, use PNG to WebP and inspect the exported edges. The related converters below cover opaque JPEG output and destinations that still require PNG.