Convert WebP to AVIF Online

Next-generation compression — 30–50% smaller than WebP, free & instant

100% private — files never leave your device

Drop your WebP files into the converter below, select AVIF output, and click Convert. AVIF offers 30–50% better compression than WebP at the same visual quality — the next-generation format for Chrome 85+, Firefox 93+, and Safari 16+. No upload, no account, completely free.

webp_to_avif.sh
$ convert --input
📁
Drop WebP files here or browse files
PNG • JPG • WebP • AVIF • GIF • BMP • ICO
output
$Conversion complete ✓
0
Files
0 MB
Original
0 MB
Converted
0%
Saved
🔒 Privacy first: All conversion happens locally in your browser. Your WebP files are never uploaded to any server.

Your Files Never Leave Your Browser

100% Client-Side Processing

Conversions run locally in your browser using the Canvas API, with Web Workers used when supported. Your image data stays on your device and is never uploaded to any server.

No Account. No Tracking of File Contents.

We use Google Analytics and Google AdSense for aggregated traffic stats and contextual ads when consent allows it. Theme and language preferences stay in your browser. We never see, read, or store the images you convert.

Open About Our Limits

Browser-based conversion has trade-offs: large files (>50 MB) may hit memory limits; animated GIF output flattens to a single frame; EXIF metadata is stripped; ICC color profiles may differ across browsers.

Questions? Contact us or read the full privacy policy .

> how_to_convert

  1. Upload your WebP file
    Drag and drop your WebP image into the converter above, or click "browse files" to select from your device. You can add multiple files for batch conversion.
  2. AVIF is pre-selected
    The output format is already set to AVIF. Adjust the quality slider if needed — 85% gives excellent compression. AVIF encoding requires a modern browser (Chrome 94+, Safari 16+).
  3. Download your AVIF
    Click "Convert All", then download each file individually or grab all results as a single ZIP archive.

> webp_vs_avif

FeatureWebPAVIF
CompressionGoodBetter (30–50% smaller)
Browser support~97% (all modern browsers)Chrome 85+, Firefox 93+, Safari 16+ (~90%)
Transparency (alpha)✓ Yes✓ Yes
Animation✓ Yes✓ Yes
HDR / wide colorLimited✓ Yes
Best use caseSafe universal web defaultMaximum compression, modern browsers

> frequently_asked_questions

Why convert WebP to AVIF?
AVIF offers better compression than WebP — typically 30–50% smaller file sizes at the same visual quality. If your target audience uses modern browsers (Chrome 85+, Firefox 93+, Safari 16+), upgrading from WebP to AVIF reduces bandwidth costs and improves Core Web Vitals LCP scores.
Is AVIF better than WebP?
For compression, yes — AVIF is 30–50% smaller than WebP at equivalent quality. For compatibility, WebP is safer — it covers ~97% of browsers vs AVIF's ~90%. Use AVIF for maximum compression on modern sites, WebP as the universal default with the broadest support.
Do all browsers support AVIF?
AVIF is supported by Chrome 85+, Firefox 93+, Safari 16+, and Edge 121+ — covering approximately 90% of global browser usage as of 2025. For the remaining 10%, use a picture element with WebP as a fallback: <source srcset="image.avif" type="image/avif"> then <img src="image.webp">.
Will converting WebP to AVIF make my files smaller?
Usually yes, but the gains depend on image content and source quality. Converting from a high-quality WebP source typically yields 20–40% smaller AVIF files. If your source WebP is already heavily compressed, the gain will be smaller. Converting from original PNG or JPG sources to AVIF gives the best compression results.
When is it not worth converting from WebP to AVIF?
Skip the conversion if: (1) your source WebP files are already small (under 50KB) — the absolute gain is minimal, (2) you need to serve images dynamically at request time — AVIF encoding is 10× slower than WebP, making real-time conversion impractical, or (3) compatibility is critical and you cannot serve a WebP fallback. WebP remains the safer default for dynamic or legacy-compatible image pipelines.