JPG to AVIF Converter
AVIF compresses 30–50% better than JPG at the same quality. Convert your archive without uploading a single file.
Best for web developers converting JPG photo libraries to AVIF to cut page weight on image-heavy sites.
Drop files here
or click to browse · paste from clipboard
Accepts .JPG, .JPEG · Up to 1,000 files
How it works
Drop your files
Drag and drop, click to browse, or paste from clipboard. Up to 1,000 files at once.
Choose settings
Adjust quality, format, and other options to match your needs.
Click Convert
Everything runs in your browser via WebAssembly. JPG to AVIF Converter happens locally — no server involved.
Download
Download files individually or grab all at once as a ZIP.
Frequently asked questions
AVIF (AV1 Image File Format) is a modern image format developed by the Alliance for Open Media. It delivers significantly smaller file sizes than both JPG and WebP at the same visual quality — typically 40–60% smaller than an equivalent JPG. It supports HDR, wide color gamut, transparency, and animation. For web use, AVIF is the current best-in-class format for photographs.
At the default quality of 70, AVIF looks visually identical to JPG — the format is simply more efficient. AVIF quality 70 is roughly equivalent to JPG quality 85 in perceptual terms. You would only notice degradation at very low quality settings (below 40). For archiving or further editing, keep your original JPGs; for web delivery, AVIF at 70 is excellent.
AVIF is supported in Chrome (since v85, August 2020), Firefox (since v93, October 2021), Edge (since v121), and Safari (since v16.4, March 2023). That covers over 93% of global web traffic. Android and iOS browsers also support AVIF. The main gap is older iOS/Safari versions — if you need to support Safari 15 or earlier, serve WebP with AVIF as the preferred format using a <picture> element.
Choose AVIF when file size is the priority and you can accept slower encoding. AVIF compresses 15–30% better than WebP at equivalent quality, making it ideal for image-heavy pages, e-commerce product shots, and any context where bandwidth matters. Use WebP when encoding speed matters (e.g., generating thumbnails on the fly) or when you need broad browser support including older Safari.
AVIF encoding is computationally heavier because it uses the AV1 video codec, which was designed for maximum compression efficiency rather than speed. At the default effort of 4, expect roughly 2–10x longer encode times than WebP for the same image. Lowering the effort slider speeds up encoding at the cost of slightly larger files. Decoding AVIF is fast — the performance hit is encode-only.
Never. Conversion runs entirely in your browser using WebAssembly. Your files never leave your device. ConvertYard's servers only deliver the tool's code; they never see your images, filenames, or metadata.