Format Converter 2 min read

AVIF to WebP Converter

AVIF (AV1 Image File Format) is one of the newest and most efficient image formats available, offering 20–50% smaller file sizes than WebP at equivalent quality. However, not every app, platform, or service supports AVIF yet. Converting your AVIF files to WebP gives you a widely supported modern format that works in all major browsers, email clients, design tools, and social media platforms. ImgToolkit's AVIF to WebP converter runs entirely in your browser — your images are never uploaded to any server, and nothing is stored anywhere.

Files never leave your device ⚡ Instant browser processing 🆓 100% free — no account 🚫 No watermark on output
By ImgToolkit Team · Updated May 2026 · 2 min read · Processed in your browser
WebPJPGPNG

Quick Answer

AVIF (AV1 Image File Format) is one of the newest and most efficient image formats available, offering 20–50% smaller file sizes than WebP at equivalent quality. However, not every app, platform, or service supports AVIF yet.

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Your images stay on your device. Nothing is uploaded to any server.

Convert AVIF to WebP Free

Step-by-Step Guide

3 steps · takes under 1 minute

1

Upload your AVIF file

Drag and drop your .avif image or click to select it. Multiple files are supported for batch conversion.

2

Set WebP quality

Choose your output quality — 90% is recommended for near-lossless results with a significantly smaller file size than PNG.

3

Download as WebP

Click Convert and download your WebP file instantly. No watermarks, no file size limits, no account required.

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100% Private — Zero Uploads

ImgToolkit runs entirely in your browser using the Canvas API. Your images are never sent to a server, never stored in the cloud, and never seen by anyone else. This makes it safe for sensitive documents, client work, medical imagery, and confidential screenshots.

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Pro tip

Always keep your original file before converting. Lossy formats like JPG discard data permanently — you can't restore quality that was compressed away.

WebP vs JPG vs PNG — Real File Sizes

Same 1080×1080px photo at equivalent visual quality

FormatQualityFile SizeNotes
PNG (lossless) Perfect 4.2 MB No compression loss
JPG (85% quality) Excellent 310 KB Best compatibility
WebP (85% quality)BEST Excellent 205 KB −34% vs JPG · Best for web

Based on a 1080×1080px photo. Results vary by image content and complexity.

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Frequently Asked Questions

5 questions answered

What is an AVIF file?

AVIF (AV1 Image File Format) is a modern image format developed by the Alliance for Open Media, based on the AV1 video codec. It offers significantly better compression than JPEG and WebP — producing files that are 20–50% smaller at the same visual quality. AVIF is supported by Chrome 85+, Firefox 93+, Safari 16+, and is increasingly used by smartphones and web platforms.

Why convert AVIF to WebP?

While AVIF has excellent compression, WebP has broader compatibility with older browsers, image editing software, CMS platforms, and web services. Converting to WebP gives you a modern format that's almost universally supported while still being significantly smaller than JPEG or PNG.

Is there quality loss when converting AVIF to WebP?

At 90% quality or above the result is visually indistinguishable from the original AVIF. Both formats use lossy compression, but setting 90–100% gives near-lossless results. Use the quality slider to balance between file size and quality.

Is AVIF better than WebP?

AVIF generally achieves 20–50% smaller file sizes than WebP at the same visual quality and supports HDR and wide colour gamut. However, WebP has significantly wider compatibility — supported by virtually all modern apps and platforms since 2014, while AVIF support is still growing in older software.

Does my browser need to support AVIF to use this tool?

Yes — the conversion relies on your browser's native AVIF image decoding. Chrome 85+, Firefox 93+, and Safari 16+ all support AVIF natively. If you see a conversion error, update your browser to the latest version.

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Convert AVIF to WebP Free

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