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Supports: AVIF
AVIF already delivers roughly 50% smaller files than JPEG at equivalent visual quality, but high-resolution AVIF images from cameras or design tools can still be several megabytes each. Compressing further lets you hit specific upload limits, speed up page loads, or fit more images into email attachments. Because AVIF uses the AV1 intra-frame codec under the hood, it handles gradients, transparency, and HDR content better than older formats — so even after compression, AVIF retains more detail than a similarly-sized JPEG or WebP.
| Feature | AVIF | WebP | JPEG | PNG |
|---|---|---|---|---|
| Compression efficiency | Best | Good | Fair | Poor (lossless only) |
| Lossy + lossless | ✅ | ✅ | Lossy only | Lossless only |
| Transparency (alpha) | ✅ | ✅ | ❌ | ✅ |
| HDR / 10-bit color | ✅ | ❌ | ❌ | ❌ |
| Browser support (2026) | ~93% | ~97% | 100% | 100% |
| Typical file size (photo) | 1× | 1.3× | 2× | 5×+ |
Yes. AVIF typically produces files 20–30% smaller than WebP at the same perceived quality because it uses the more advanced AV1 codec. The trade-off is slightly slower encoding, but for static images served on the web the size savings outweigh the one-time encoding cost.
It depends on the method. Using a Quality Preset like "Very High" or setting Image Quality to 75–85% produces files that are visually indistinguishable from the original for most photographs. Aggressive settings below 50% will introduce visible artifacts, especially in smooth gradients.
Yes. All compression methods (Quality Preset, Target file size %, Specific file size, Image Quality %) work independently of resolution. Leave the resolution setting unchanged and only the encoding quality is adjusted.
For most web use, an Image Quality of 60–75% or the "High" Quality Preset offers the best balance between file size and visual fidelity. Photography sites may prefer 80–90% for sharper detail, while thumbnails and previews can go as low as 40–50%.
Yes. AVIF fully supports alpha-channel transparency in both lossy and lossless modes, making it an excellent replacement for PNG when you need both transparency and small file sizes.