🖼️ Image Converter
Convert WebP to AVIF — Free & Private
Upgrade your WebP images to AVIF — the next-generation format that achieves even smaller file sizes than WebP while maintaining excellent quality.
✓ Free forever✓ No upload✓ No signup✓ Instant
Ready to convert your WebP?
100% in your browser · Up to 50 MB · Even smaller than WebP
How to Convert WebP to AVIF
1
Open the Converter
Click "Convert Now" — opens with WebP → AVIF pre-selected.
2
Upload Your WebP
Drag & drop your WebP file or click Browse. Up to 50 MB.
3
Convert Instantly
Conversion runs entirely in your browser — no server upload.
4
Download AVIF
Your AVIF file downloads automatically, ready to use.
Why Convert WebP to AVIF?
- 📦 Even smaller than WebP — AVIF typically reduces file sizes by ~20% compared to WebP
- 🚀 Future-proof format — AVIF is the next generation of web image formats
- 🎨 High visual quality — excellent image fidelity even at aggressive compression levels
- 🔐 100% private — files stay on your device, never uploaded to any server
- 🆓 Free forever — no watermarks, no limits, no credit card
- ⚡ Instant — browser-based conversion, results in seconds
Features
100% Private
Files never leave your browser. Zero server uploads.
Instant
Conversion completes in seconds using Canvas API.
Free
No account, no fee, no watermarks. Ever.
Batch Convert
Convert multiple WebP files to AVIF in one go.
Next-Gen Format
AVIF is the future of efficient web images.
Mobile-Friendly
Works on any device — phone, tablet, desktop.
Frequently Asked Questions
Yes — completely free, no limits, no watermarks. Convertlo runs entirely in your browser.
Yes — AVIF files are typically around 20% smaller than equivalent WebP images while maintaining the same visual quality, making AVIF the superior choice for web images.
Yes, AVIF fully supports alpha channel transparency, so any transparency in your WebP file will be preserved in the output.
No. All conversion happens locally in your browser using the HTML5 Canvas API. Your files never leave your device.
AVIF is supported in Chrome, Firefox, and Safari 16+. It covers the vast majority of modern browser users.