What the image converter does
The converter takes an image in any format your browser can open — JPG, PNG, WebP, GIF, BMP, SVG, AVIF and, in Safari, HEIC — and saves it as JPG, PNG or WebP at a quality you choose. Conversion happens in your browser with the Canvas API: the image is decoded to pixels and re-encoded in the target format. Nothing is uploaded. Use it when a website, form or program refuses a format, or when you want a smaller, more compatible file.
Choosing the right format
| Format | Compression | Transparency | Best for | Avoid for |
|---|---|---|---|---|
| JPG | Lossy | No | Photos; anything that must open everywhere | Text, logos, screenshots, transparency |
| PNG | Lossless | Yes | Screenshots, logos, line art, UI graphics | Photos (files 5–10× larger than JPG) |
| WebP | Lossy or lossless | Yes | Web images — smallest at equal quality | Older desktop apps and email clients |
| GIF | Lossless, 256 colours | 1-bit | Simple animations | Anything else — use PNG or WebP |
| SVG | Vector | Yes | Icons and diagrams that must scale | Photos (not possible) |
| HEIC | Lossy, efficient | Yes | iPhone camera default | Sharing — poor support outside Apple |
What happens in each direction
- PNG → JPG: transparent areas become white, and the image becomes lossy. Size typically drops 60–90%.
- JPG → PNG: no quality is gained (the JPEG artefacts are already baked in) and the file gets much larger. Only worthwhile if a program insists on PNG.
- Anything → WebP: smallest result for the web; keeps transparency. Check that the destination accepts WebP first.
- WebP → JPG/PNG: the common fix for images downloaded from websites that older software will not open.
- SVG → PNG/JPG: the vector is rasterized at its declared size. For a larger raster, resize the output or use the SVG converter, which lets you set the scale.
- GIF → anything: only the first frame is kept; animation is lost.
The quality setting
Quality applies to JPG and WebP only; PNG is always lossless. Values are 0.1 to 1.0. For photos, 0.8 is visually indistinguishable from the original on screen at less than half the size; 0.9 is a safe choice for images that will be edited again or printed; 1.0 disables most compression and produces files larger than necessary. WebP at 0.8 is roughly the quality of JPG at 0.85 and about 30% smaller.
Colour and metadata
- Output is in the sRGB colour space. Images with an embedded wide-gamut profile (Display P3, Adobe RGB) are converted; very saturated colours may look slightly different.
- EXIF metadata, including GPS location, is stripped by the conversion. This is a feature when sharing publicly; use JPG Compressor (Keep EXIF) if you need it preserved.
- Orientation stored in EXIF is applied before conversion by modern browsers, so a photo that displayed upright stays upright.
Common uses
- Converting WebP images saved from the web into JPG for Word, PowerPoint or an older photo viewer.
- Turning a PNG screenshot into a JPG to meet an upload size limit.
- Producing a WebP version of product photos for a faster website.
- Converting a transparent logo to PNG for use on a coloured background.
- Getting an SVG icon into a raster format for an app that does not support vectors.