You’ve just removed the background from your product image. The cutout looks perfect. Now you hit “Save” and a dialog box pops up: PNG, JPEG, WebP, TIFF, SVG… Which one should you choose? The wrong format can distort your transparent edges or swell your file to an unusable size. Here’s what you need to know.
JPEG – just don't
Let's get this out of the way first. JPEG does not support transparency. If you save a transparent image as a JPEG, the empty space will be filled with white (or black, depending on the software). Never use JPEG for a file that you've just removed the background from, unless you're intentionally flattening it onto a colored canvas.
PNG – the universal workhorse
PNG is the most reliable format for transparent images. It supports an alpha channel, meaning it can preserve partial transparency – not just fully transparent or fully opaque, but everything in between. This is important for smooth edges and soft shadows. PNGs are lossless, so there are no compression artifacts. The trade-off? The file size can be large, especially for high-resolution images.
WebP – smaller, but tricky
WebP supports lossy and lossless compression with transparency. Lossless WebP with alpha is often 25-35% smaller than a comparable PNG. The downside is compatibility: While all modern browsers support WebP, some older systems and applications do not. WebP is a great choice if your audience is primarily web-based and you want fast load times.
SVG – for vector shapes
If your image is a logo, icon, or illustration made of simple shapes, SVG might be better than any raster format. SVGs are resolution‑independent and usually tiny in file size. They don't have "transparent backgrounds" in the traditional sense; the background simply doesn't exist in the code. But for photographs, SVG isn't practical. If your image is a logo, icon, or illustration made up of simple shapes, SVG may be better than any raster format. SVGs are resolution-independent and generally tiny in file size. They don't have a "transparent background" in the traditional sense. The background simply doesn't exist in the code. But for images, SVG isn't practical.
TIFF – the print professional's choice
TIFFs support full alpha channels and are widely used in print production. They're flawless, can store multiple layers, and play well with professional layout software. The file sizes are very large, though, so they are not suitable for the web. If you are sending your transparent artwork to a print shop, TIFF is often the safest bet.
For most people, the answer is simple: Use PNG unless you have a specific reason to switch. It's compatible everywhere, supports smooth transparency, and works for both screen and print. When file size matters like for website hero images give WebP a try. And always save your original, unflattened file in case you need it later.