Convert WebP to AVIF
Convert WebP files to AVIF entirely in your browser. The newest mainstream format — best-in-class compression based on the AV1 video codec. Drop your WebPs below — nothing is uploaded.
Drop your images here
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Max 50 files, 20 MB each.
Every conversion runs entirely in your browser. Your images never leave your device.
About WebP → AVIF
Why convert WebP to AVIF?
AVIF currently offers the best compression of any mainstream image format, ideal for performance-critical websites.
About WebP
WebP is a modern image format from Google designed to replace both JPG and PNG on the web. It supports lossy and lossless compression, an alpha channel, and even animation, while typically producing files 25–35% smaller than JPG at equivalent visual quality. Every up-to-date browser (Chrome, Firefox, Safari, Edge) renders WebP natively, which makes it the default win for Core Web Vitals and bandwidth bills.
About AVIF
AVIF is based on the AV1 video codec and currently offers the best compression of any widely-supported web image format — typically 30–50% smaller than JPG and noticeably smaller than WebP for the same perceived quality. It supports transparency, wide colour gamut, HDR and animation. Browser decode support is universal in modern Chrome, Firefox, Safari and Edge, but encode support in the browser is still uneven, which is why verto surfaces a clear fallback message when the local encoder refuses.
What you're converting between
A short primer on both formats so the trade-offs are obvious before you hit Convert.
WebP
SourceWebP · introduced 2010
WebP is a modern image format from Google designed to replace both JPG and PNG on the web. It supports lossy and lossless compression, an alpha channel, and even animation, while typically producing files 25–35% smaller than JPG at equivalent visual quality. Every up-to-date browser (Chrome, Firefox, Safari, Edge) renders WebP natively, which makes it the default win for Core Web Vitals and bandwidth bills.
Strengths
- 25–35% smaller than JPG at the same visual quality
- Supports transparency, unlike JPG
- Native support in every modern browser
Trade-offs
- Some older tools, print kiosks and email clients still reject it
- Lossy WebP can soften text and hard edges at low quality
- Slower to encode than JPG
AVIF
TargetAV1 Image File Format · introduced 2019
AVIF is based on the AV1 video codec and currently offers the best compression of any widely-supported web image format — typically 30–50% smaller than JPG and noticeably smaller than WebP for the same perceived quality. It supports transparency, wide colour gamut, HDR and animation. Browser decode support is universal in modern Chrome, Firefox, Safari and Edge, but encode support in the browser is still uneven, which is why verto surfaces a clear fallback message when the local encoder refuses.
Strengths
- Best compression ratio of any mainstream format
- Supports transparency, HDR and wide colour
- Decoded by every modern browser
Trade-offs
- Browser-side encoding is not universally available yet
- Rejected by many older apps, email clients and print services
- Slower to encode than JPG/WebP
Popular conversions
Each link below opens the converter with the right output pre-selected.
- WebP to JPGUniversal compatibility
- WebP to PNGLossless re-encode
- JPG to AVIFBest compression for the modern web
- PNG to AVIFBest compression for the modern web
- GIF to AVIFBest compression for the modern web
- JPG to PNGLossless re-encode
- JPG to WebPSmaller files, transparency kept
- PNG to JPGUniversal compatibility
Supported formats
JPG, PNG, WebP and AVIF cover almost every web and design workflow. GIF input is accepted but only the first frame is used. Conversions run entirely in your browser.
TIFF, SVG, HEIC, RAW, PSD, AI, EPS and PDF are not supported in this version. Please export to JPG or PNG first if your source is in one of those formats.
| Format | Input | Output | Notes |
|---|---|---|---|
| JPG | Yes | Yes | No transparency |
| PNG | Yes | Yes | Lossless, transparency |
| WebP | Yes | Yes | Good default for web |
| AVIF | Yes | Yes | Browser-dependent encoder |
| GIF | Yes | No | First frame only on input |
| TIFF | No | No | Not supported (browser-only) |
| SVG | No | No | Rejected for security |
| HEIC | No | No | Export to JPG/PNG first |
Frequently asked questions
Your files never leave your device
verto is a static page. Every conversion happens entirely inside your browser — there is no server-side processing, no upload, no temporary file, no cache. When you close this tab, every file is gone.
- No account required.
- No permanent storage, on the server or in your browser.
- No caching of conversion responses.
- Image metadata (EXIF, GPS) is stripped by default.