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AVIF to WebP Converter — Free, Online, No Upload

Convert AVIF images to WebP for compatibility with browsers and platforms that support WebP but not AVIF yet.

Free · no signup2 free files a day100% in-browser · no upload

Tap to select AVIF files

or click to browse

2 free files per day (2 left today) · Up to 10 MB each · Upgrade for more

Free image outputs include a repeating formatdrop.com watermark · Remove with Pro

✓ Files never uploaded✓ 100% browser-based✓ No account required
Need the reverse?WEBP → AVIF

How to convert AVIF to WEBP online

  1. 1

    Drop your AVIF file

    Drag your AV1 Image File Format file onto the box above, or click it to pick a file.

  2. 2

    Wait a few seconds

    Conversion starts on its own and runs on your device, not on a server.

  3. 3

    Download your WEBP

    Click Download to save the Web Picture Format file.

AVIF vs WEBP: format overview

AVIF

AV1 Image File Format

Alliance for Open Media · 2019

Compression
lossy
Color depth
12-bit
Transparency
Yes
  • ✓ Smallest file size of any image format (50% smaller than WebP)
  • ✓ Excellent HDR and wide-gamut color support
  • ✗ Slow encoding (computationally expensive)
WEBP

Web Picture Format

Google (On2 Technologies acquisition) · 2010

Compression
hybrid
Color depth
8-bit
Transparency
Yes
  • ✓ 30% smaller than JPEG, 26% smaller than PNG
  • ✓ Supports both lossy and lossless

AVIF magic bytes: 00 00 00 .. 66 74 79 70 61 76 69 66

WEBP magic bytes: 52 49 46 46 xx xx xx xx 57 45 42 50

Why convert AVIF to WEBP?

AVIF is one of the most efficient image formats available, but its encoder compatibility is still uneven in 2025. Certain image editing tools, older content management systems, and server-side image processing libraries do not yet support AVIF as an input format. If you are working with AVIF assets from a modern CDN or design pipeline and need to hand them off to a tool or platform that does not recognize them, conversion to WebP is the pragmatic solution.

WebP has near-universal support across all modern browsers, image editing applications, and web platforms. Photoshop supports WebP natively since version 23.2, GIMP has supported it for years, and tools like Squarespace, Wix, and Shopify all accept WebP image uploads. WordPress handles WebP natively from version 5.8 onward. Converting AVIF to WebP gives you a format with a larger support surface while still maintaining substantially better compression than JPEG.

The conversion from AVIF to WebP involves decoding the AVIF and re-encoding in WebP, which introduces a small amount of additional quality loss since both are lossy formats. In practice, the difference is imperceptible at WebP quality settings of 85 or above. The resulting WebP files will be larger than the AVIF originals, typically by 20 to 40 percent, but still significantly smaller than equivalent JPEGs. Transparency is preserved during conversion, since both formats support alpha channels.

Quality & file size: AVIF to WEBP

Typical sizes (12MP photo): AVIF 0.8–2 MB → WEBP 1–3 MB.

On the free tier, WEBP output has a repeating formatdrop.com watermark; Pro output doesn't.

WEBP output is encoded at quality 85 — a small file with no visible difference for most photos.

Transparency is kept.

Frequently asked questions

Will the image quality change after conversion?
It depends on the formats involved. Converting to a lossless format like PNG preserves every pixel exactly. Converting to a lossy format like JPEG or WebP applies compression — we default to 85% quality, which looks identical to the original for almost all images. You won't notice a difference unless you zoom in pixel-by-pixel.

Your AVIF file never leaves this tab — FormatDrop has no endpoint that receives file data. How it works