Do all apps open WebP?

Modern browsers do; some older editors and office tools do not. Keep the original JPG if you need maximum compatibility.

Both exist. The quality slider here controls lossy WebP; keep it above 80% for photos.

Does converting reduce image dimensions?

No, the width and height stay the same; only the encoding changes.

Image Converter / Converters / JPG to WebP converter

WebP files are usually 25-35% smaller than JPG at the same visual quality — useful for websites and email.

Drop images here, or click to choose JPG · PNG · WebP · up to 20 files · nothing is uploaded

Output format Quality 90%

Browsers can encode WebP directly, which means this conversion needs no server. Pick a quality level, convert, and compare the size before and after.

Do all apps open WebP?: Modern browsers do; some older editors and office tools do not. Keep the original JPG if you need maximum compatibility.
Is WebP lossy?: Both exist. The quality slider here controls lossy WebP; keep it above 80% for photos.
Does converting reduce image dimensions?: No, the width and height stay the same; only the encoding changes.