Create modern AVIF images from JPG. Free, private, runs in your browser.
100% private — your files and text never leave your browser. All processing happens locally on your device.
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JPG to AVIF can reduce file size for web photos while keeping good visual quality. The image is decoded and re-encoded locally in the browser tab rather than uploaded to a conversion service.
Convertful tries the browser's native AVIF canvas exporter first. If that is missing, it falls back to a bundled local WASM AVIF encoder so more desktop and mobile browsers can still produce AVIF without a server upload.
Canvas-based re-encoding exports pixels, not the original JPEG container. Camera model, GPS, orientation metadata, and other EXIF fields are not carried into the AVIF output.
Convertful uses native browser AVIF export when available and falls back to a bundled local WASM encoder on browsers that cannot save AVIF from canvas. Very old or memory-constrained devices may still need smaller output dimensions.
Often yes, especially for web photos, but the result depends on image content and the selected quality.
No. The JPG is decoded to pixels and re-encoded as AVIF, so EXIF and other metadata are removed.
Yes. Use optional max-width and max-height controls to downscale large JPGs during conversion.
No. Encoding uses the browser's local image stack and a bundled WASM fallback. Convertful does not upload the image elsewhere.