Convert JPG / PNG / WebP
Upload one or multiple JPG, PNG or WebP images and convert them all at once to another of those formats.
When to use each format
JPG is the most compatible and lightweight option for photos, but doesn't support transparency. PNG keeps transparency and is lossless, ideal for logos and icons. WebP is usually smaller than both while keeping good quality, and does support transparency.
Privacy
Conversion happens with <canvas>, the browser's native API. Your image is never uploaded to Numelto.
Choosing a format: JPG, PNG or WebP
If you later need a specific file size, use compress image; for a vector format, use image to SVG.
| Format | Transparency | Best for |
|---|---|---|
| JPG | No | Photographs |
| PNG | Yes | Logos, screenshots, icons |
| WebP | Yes | Web use: smaller size with good quality |
Which format to pick based on use
JPG compresses photos with lots of colors better but doesn't support transparency; PNG keeps transparency and sharp edges (ideal for logos and icons); WebP is usually smaller than both at similar quality, though some older software may not support it.