Choosing between JPG, PNG, WebP and AVIF
The decision comes down to what the image contains. Photographs compress well with lossy codecs, so JPG, WebP or AVIF will give you a small file with no visible penalty. Screenshots, logos and anything with hard edges or flat colour belong in a lossless format such as PNG, where text stays sharp and transparency survives.
For images published on the web, WebP is the safe modern default: roughly a third smaller than JPG, supported by every current browser, and capable of transparency. AVIF goes smaller still and is worth the slower encode when bandwidth is the bottleneck.
Transparency, colour and resolution
Only PNG, WebP, AVIF, GIF, ICO and SVG carry transparency. Converting any of them to JPG flattens the transparent areas onto a solid background, which is the single most common surprise when exporting logos.
Vector artwork behaves differently again. An SVG has no inherent resolution, so rasterising it to PNG means choosing the largest size you will ever display before you convert.
Supported image converter formats
- JPG
- PNG
- WEBP
- AVIF
- GIF
- BMP
- TIFF
- SVG
- ICO
Frequently asked questions
Which image format is best for websites?
- WebP for photographs and UI imagery, SVG for logos and icons, and PNG when you need guaranteed lossless quality. AVIF is the smallest option if you can accept slower encoding.
Do image conversions upload my photos?
- No. Image conversion runs entirely in your browser through a Web Worker, so the files stay on your device.
Can I convert a batch of images at once?
- Yes, up to 20 files per batch, downloadable individually or as one ZIP.