Choose by outcome

A format is a trade-off, not a badge.

JPEG is broadly compatible, PNG can preserve transparent pixels, and WebP can provide practical web delivery. Conversion cannot carry a feature the destination format does not support.

JPEGA common choice for photographs and broad compatibility, without transparency.

PNGUseful when lossless pixel values or a transparent background matter.

WebPA modern browser format for web delivery with lossy and transparency-capable output.

HEIC inputDecoded locally when the browser and included decoder support the source file.

Compatibility note: HEIC files vary, and browser memory limits apply. Unsupported variants or very large sources may fail without leaving your device.

Common questions

Before changing format.

Which format should I use for a website?

WebP is a practical modern default for many photographs and graphics. Keep PNG when transparency or lossless details matter, and JPEG when broad compatibility outside modern browsers is the priority.

Why did a transparent area get a background?

JPEG cannot store transparency. Select PNG or WebP when the transparent background needs to remain, or choose the background colour used for a JPEG.

Does converting improve image quality?

No. Conversion can preserve or discard available information, but it cannot restore detail already missing from the source. Repeated lossy conversions can reduce quality.

Keep working

Change the format, keep the purpose.

A format is a trade-off, not a badge.

Before changing format.

Related image jobs.