Image Converter
Convert your images instantly in your browser. Free, private, no upload.
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or click to browse files (multiple supported)
How to convert images online
Use this free online converter to change your image format directly in your browser. No file is uploaded to any server — everything happens on your device, keeping your images completely private.
Ověřitelné soukromí
Because all processing happens locally on your device, your files never leave your computer or phone. There are no accounts, no tracking, and no copies stored anywhere.
How to use
- Click "Select Images" or drag and drop your files into the box above.
- The conversion starts automatically — or click "Convert Now".
- Download your converted files instantly.
Frequently asked questions
Converting WEBP to AVIF is worth doing when you need what AVIF offers: the smallest files of the common formats. WEBP gives you roughly 25–35% smaller than JPG at similar quality, with transparency, but its drawback is older software may not open it.
How it works
- Add your WEBP files.
- The output format is already set to AVIF.
- Adjust quality if the format supports it.
- Download the converted AVIF files.
Good to know
One thing to keep in mind: slower to encode and not supported everywhere yet. Converting does not repair damage already present in the source — if the WEBP was heavily compressed, those artefacts carry across into the AVIF.
Frequently asked questions
Is converting WEBP to AVIF lossless?
AVIF is a lossy format, so the conversion re-encodes and discards a little detail. At high quality settings the difference is not visible in normal viewing.
Why convert WEBP to AVIF at all?
Usually for the smallest files of the common formats. If neither of those matters for your use, keeping the WEBP is perfectly fine.